WEBVTT 00:00:41.000 --> 00:01:22.000 This is radio. 00:01:22.000 --> 00:05:43.000 If you go shopping with. 00:11:07.000 --> 00:10:39.000 This week on Radio Eco shark. 00:10:39.000 --> 00:09:21.000 We're going to the end of the earth. 00:09:21.000 --> 00:15:14.000 It's a feature-length interview about new science the chills 00:01:25.000 --> 00:03:37.000 Antarctica is melting. 00:03:37.000 --> 00:10:10.000 I guarantee you will read headlines and see amazing video news 00:10:50.000 --> 00:12:24.000 from the science were discovering this week sea levels will rise 00:12:24.000 --> 00:10:28.000 around the planet for centuries reshaping the coastlines and 00:11:08.000 --> 00:03:00.000 civilization, 00:03:00.000 --> 00:11:23.000 then we'll finish up with the return of Marjorie Wilde craft with 00:11:23.000 --> 00:01:26.000 more tips on growing your own groceries. 00:01:26.000 --> 00:11:18.000 It's all food for thought and action, 00:11:18.000 --> 00:14:19.000 I'm Alex Smith, 00:14:19.000 --> 00:16:40.000 the journey begins. 00:09:47.000 --> 00:07:21.000 There's a lot of action in Antarctica and that can bring changes 00:10:21.000 --> 00:14:22.000 all over the world. 00:14:22.000 --> 00:10:06.000 Here to discuss recent sciences Dr. Roland C warmer. 00:10:06.000 --> 00:15:49.000 He is a researcher with the Antarctic climate and ecosystems 00:03:40.000 --> 00:10:04.000 Cooperative Research Centre at the University of Tasmania Tasmania 00:10:54.000 --> 00:11:08.000 is the closest Australian state to Antarctica Dr. Warner welcome 00:11:08.000 --> 00:15:59.000 to Radio Eco shock. 00:03:42.000 --> 00:09:32.000 With him. 00:15:32.000 --> 00:02:43.000 Well, 00:02:43.000 --> 00:07:56.000 thank you for joining us for an update on this frozen world at the 00:07:56.000 --> 00:04:07.000 South Pole. 00:04:07.000 --> 00:06:11.000 First of all what parts of Australia are closest to Antarctica and 00:06:51.000 --> 00:14:04.000 what claims does your country have on that continent. 00:06:25.000 --> 00:12:05.000 Okay. 00:12:05.000 --> 00:16:05.000 Well, 00:16:05.000 --> 00:12:00.000 I'm here in Tasmania of an island state of Australia. 00:12:00.000 --> 00:13:34.000 Half of the Australian mainland and well I thought still some 00:15:04.000 --> 00:16:28.000 distance away to our south there are only a few small islands in 00:16:28.000 --> 00:07:20.000 the middle of the Southern Ocean, 00:07:20.000 --> 00:04:43.000 between Australia and Antarctica. 00:04:43.000 --> 00:13:43.000 However, 00:13:43.000 --> 00:02:19.000 as you alluded Australia does have a territorial claim to a large 00:03:09.000 --> 00:15:30.000 piece of the Antarctic, 00:15:30.000 --> 00:17:22.000 but 42% of it, 00:17:22.000 --> 00:04:17.000 to be precise now various countries establish these claims in an 00:04:17.000 --> 00:08:39.000 age of heroic exploration. 00:08:39.000 --> 00:02:23.000 You know putting out flags and claiming things in the name of if 00:02:23.000 --> 00:11:43.000 you know, 00:11:43.000 --> 00:04:04.000 typically, 00:04:04.000 --> 00:02:37.000 your moniker your state with the done thing. 00:02:37.000 --> 00:12:51.000 In those days and these claims exist and some of them actually 00:14:01.000 --> 00:14:02.000 tend to overlap, 00:14:02.000 --> 00:17:26.000 particularly around the most successful part then tactic in that. 00:17:26.000 --> 00:12:50.000 Think of the Antarctic Peninsula points up to South America and 00:12:50.000 --> 00:15:23.000 one big think there isn't actually coined by anyone at all. 00:15:23.000 --> 00:17:06.000 But these claims are on ice and if you will. 00:17:06.000 --> 00:14:17.000 Under their party. 00:16:47.000 --> 00:14:41.000 Treaty which was established in the 1950s and it's that treaty 00:14:41.000 --> 00:06:35.000 that governs how people behave in Antarctica. 00:06:35.000 --> 00:07:36.000 These days, 00:07:36.000 --> 00:13:30.000 whether they have claims to particular pieces of turf all but I 00:18:50.000 --> 00:09:41.000 will not. 00:05:52.000 --> 00:06:13.000 And have you been there. 00:13:44.000 --> 00:14:45.000 Yes I think twice. 00:14:45.000 --> 00:11:10.000 I think of 3 summer seasons with heat strain in US, 00:11:10.000 --> 00:18:30.000 British, 00:18:30.000 --> 00:14:45.000 French collaborative project this imaginatively called ice cap. 00:14:45.000 --> 00:15:09.000 This is a bit of a mouthful stands for investigating Christ very 00:17:49.000 --> 00:06:25.000 evolution through collaborative 2 physical profiling and what that 00:06:25.000 --> 00:15:38.000 means is that we have a whole range of instruments on an aircraft 00:15:38.000 --> 00:19:42.000 , the fact of the rejuvenated DC 3 genuine World War II vintage 00:12:53.000 --> 00:16:16.000 and we fly for hours and hours. 00:16:16.000 --> 00:17:50.000 They are the ice sheet measuring many different things and I'm 00:17:50.000 --> 00:13:24.000 sure we will discuss today using that aircraft. 00:13:24.000 --> 00:04:08.000 So I was a Casey station which is one of 3 Australian basis on 00:11:08.000 --> 00:09:43.000 continent itself that's due south of Western Australia and I've 00:09:43.000 --> 00:06:44.000 got there. 00:06:44.000 --> 00:15:27.000 In this modern era either by flying directly there in a jet plane 00:17:57.000 --> 00:14:41.000 from here in Havana to the runaway on the ice cap behind the 00:16:21.000 --> 00:04:46.000 station or rather more long way around changing planes that. 00:17:36.000 --> 00:11:41.000 US they with murder when flying for hours and hours allow you know 00:18:31.000 --> 00:05:57.000 ski equipped Hercules to land at and on one occasion I've come 00:05:57.000 --> 00:16:50.000 home on our ice breaker which took 7 considered try. 00:11:02.000 --> 00:15:23.000 It's a giant place. 00:15:23.000 --> 00:09:17.000 I mean it is a real continent now in a shocking bit of news 00:09:17.000 --> 00:05:01.000 Antarctica just experienced the 2 hardest days ever recorded there 00:05:01.000 --> 00:18:53.000 , namely 63.5 degrees Fahrenheit, 00:18:53.000 --> 00:14:36.000 or 17.5° C and that was that. 00:14:36.000 --> 00:13:10.000 The Argentinian Esperanza Base on the Antarctic Peninsula. 00:13:10.000 --> 00:10:13.000 I've heard that was warmer than the temperature in Britain on the 00:10:13.000 --> 00:05:25.000 same day in late March. 00:05:25.000 --> 00:10:58.000 Is that just a freak occurrence or do you think Antarctica is 00:10:58.000 --> 00:20:28.000 warming. 00:20:29.000 --> 00:07:40.000 Yeah, 00:07:40.000 --> 00:19:34.000 I don't say that being involved with the phone day here at home. 00:19:34.000 --> 00:18:08.000 It's not part of either or outside the Antarctic Peninsula. 00:18:08.000 --> 00:05:23.000 But think you're Antarctica pointing South America is an area of 00:05:23.000 --> 00:11:46.000 Antarctica that shows some of the greatest climate warming of 00:12:26.000 --> 00:09:37.000 recent years. 00:09:37.000 --> 00:13:48.000 For the whole planet, 00:13:48.000 --> 00:15:52.000 perhaps 5° Celsius warmer over the last 50 years, 00:15:52.000 --> 00:07:25.000 according to the British Antarctic Survey. 00:07:25.000 --> 00:10:38.000 So it's consistent with that sort of situation that you're going 00:10:38.000 --> 00:19:52.000 to keep getting record breaking maximum temperatures and that of 00:19:52.000 --> 00:20:35.000 course one hot days where there while the trend in hot days who 00:21:45.000 --> 00:20:20.000 climbed into it was not a theorist of previous record was only 0.4 00:08:31.000 --> 00:12:56.000 degree Celsius lower that was back in 1961 and it was even later 00:12:56.000 --> 00:17:00.000 in the year as a month later was in April that's so it's only anti 00:17:00.000 --> 00:18:12.000 think the reason is warming. 00:18:12.000 --> 00:11:46.000 And so when I 3 state holidays. 00:11:46.000 --> 00:06:17.000 You know, 00:06:17.000 --> 00:10:38.000 so not a freak occurrence. 00:15:18.000 --> 00:12:39.000 All right, 00:12:39.000 --> 00:15:09.000 well, 00:15:09.000 --> 00:10:43.000 let's turn to a new scientific paper you were directly involved in 00:11:03.000 --> 00:12:28.000 the title is ocean access to a cavity beneath glacier in East 00:15:18.000 --> 00:16:49.000 Antarctica. 00:16:49.000 --> 00:06:21.000 We need to frame that a bit. 00:06:21.000 --> 00:20:31.000 Obviously, 00:20:31.000 --> 00:09:04.000 where's the tartan glacier and how big is it. 00:09:25.000 --> 00:14:25.000 Yes, 00:14:25.000 --> 00:05:56.000 certainly. 00:05:56.000 --> 00:15:40.000 The Congress is the largest growth you know East Antarctica. 00:15:40.000 --> 00:08:15.000 It came to split Antarctic are up by which in the world, 00:08:15.000 --> 00:22:15.000 we're looking at. 00:22:15.000 --> 00:12:16.000 After all, 00:12:16.000 --> 00:20:29.000 and I think you know everything is sort of you know and so we 00:20:29.000 --> 00:15:13.000 don't particularly is parts weaving between the Greenwich Meridian 00:15:13.000 --> 00:22:09.000 and the line below Africa Australia so the Congo. 00:22:09.000 --> 00:17:02.000 If you can fight on almost exactly the opposite side and 00:17:02.000 --> 00:20:18.000 Antarctica so less brands when looking at about 116 he strongly 00:06:59.000 --> 00:16:49.000 too. 00:16:49.000 --> 00:15:31.000 So almost directly below the city of Perth. 00:15:31.000 --> 00:14:33.000 In the capital city of Western Australia. 00:12:06.000 --> 00:11:01.000 He took a very large grace period driving 540,000 square 00:12:11.000 --> 00:16:43.000 kilometers of East Antarctica. 00:16:43.000 --> 00:08:44.000 He was like, 00:08:44.000 --> 00:17:37.000 I think that is being more than twice the size of for you. 00:17:37.000 --> 00:23:10.000 Australian state of Victoria for North American audience audiences 00:23:10.000 --> 00:21:23.000 might be more helpful to say that somewhat more than twice the 00:21:53.000 --> 00:19:05.000 area of all the Great Lakes put together. 00:18:26.000 --> 00:18:07.000 And that's big. 00:18:07.000 --> 00:06:58.000 Yeah. 00:11:58.000 --> 00:07:49.000 Yes, 00:07:49.000 --> 00:14:39.000 okay. 00:14:39.000 --> 00:18:34.000 And so just food to fill out is the story this 70 billion tons of 00:18:34.000 --> 00:19:09.000 ice flows out of that quite you know every year that's amazingly 00:21:19.000 --> 00:22:31.000 about the flow rate of Niagara Falls, 00:22:31.000 --> 00:10:44.000 but obviously it's moving slightly, 00:10:44.000 --> 00:16:36.000 but on a very grand scale. 00:22:56.000 --> 00:15:09.000 Is that the amount that actually reaches the sea every year. 00:23:39.000 --> 00:18:10.000 Yep, 00:18:10.000 --> 00:16:11.000 that's, 00:16:11.000 --> 00:14:36.000 that's what that that out of ice that you can collect in half a 00:14:36.000 --> 00:15:08.000 million square kilometers, 00:15:08.000 --> 00:08:12.000 I should say that they are itself is more than 30km wide at the 00:08:12.000 --> 00:12:27.000 front considerably stand and Niagara Falls and its 200 meters 00:14:07.000 --> 00:20:38.000 thick. 00:20:38.000 --> 00:10:40.000 So there's a lot of life on the moon. 00:23:40.000 --> 00:11:11.000 Well, 00:11:11.000 --> 00:22:53.000 you've hit something that's a little confusing to some of us we 00:22:53.000 --> 00:10:38.000 have sea ice which doesn't directly add to sea level rise. 00:10:38.000 --> 00:21:02.000 We have melting from land ice like Greenland which does add to the 00:21:42.000 --> 00:16:55.000 sea level rise and then in the Arctic. 00:16:55.000 --> 00:13:58.000 There's only a couple small ice shelves left attached to Canadian 00:13:58.000 --> 00:19:31.000 polar islands but in Antarctica seems confusing, 00:19:31.000 --> 00:18:34.000 could you just give us a quick update on the relationship between 00:19:14.000 --> 00:21:08.000 sea ice ice shelves and land based glaciers. 00:18:29.000 --> 00:10:20.000 Yeah, 00:10:20.000 --> 00:23:14.000 this is certainly something which could use a lot of people. 00:23:14.000 --> 00:09:19.000 Yet the only turning to do it through water or flowing into the 00:09:49.000 --> 00:14:19.000 sea. 00:14:19.000 --> 00:09:21.000 That could affect sea level rises. 00:09:21.000 --> 00:17:15.000 Obviously I that's currently not floating on the ocean because 00:17:36.000 --> 00:10:09.000 courtesy of the year old Archimedes we have you know the guy 00:15:39.000 --> 00:12:03.000 that's floating on the ocean when it melts well simply filling the 00:13:33.000 --> 00:19:33.000 volume. 00:19:33.000 --> 00:21:45.000 It was previously displacing. 00:21:45.000 --> 00:23:19.000 So that's not to say that the melting of things like ice shelves 00:24:19.000 --> 00:17:30.000 which is. 00:13:21.000 --> 00:19:53.000 Got if your that the floating on the ocean. 00:19:53.000 --> 00:10:07.000 That's not to say that won't have an impact on the earth's system 00:12:37.000 --> 00:13:02.000 because it's only going to fresh of top layers of the ocean that 00:15:52.000 --> 00:18:26.000 in terms of the level rises ground a life like Greenland and like 00:21:16.000 --> 00:16:40.000 for little ice caps are still remain you where you know Arctic and 00:19:20.000 --> 00:12:44.000 now graces around the world and a sleeping giant in the lift, 00:12:44.000 --> 00:16:37.000 which perhaps is not fleeting Antarctica that's where think was 00:16:37.000 --> 00:17:38.000 going to come from. 00:17:38.000 --> 00:09:52.000 I would like to fall out of the on story as well. 00:09:52.000 --> 00:16:47.000 Think about feel it is this is the host of surface freezing and 00:17:17.000 --> 00:14:20.000 it's around Antarctica and in the Arctic. 00:14:20.000 --> 00:21:24.000 It's one of the big seasonal changes in the Earth's climate system 00:11:05.000 --> 00:20:46.000 around Antarctica in the wintertime. 00:20:46.000 --> 00:15:12.000 The area where the ocean surface is predominantly covered by why 00:16:42.000 --> 00:14:44.000 such been frozen over the ocean itself. 00:14:44.000 --> 00:13:46.000 That's almost double for signs of that big, 00:13:46.000 --> 00:13:59.000 white pants down of that the part of the globe. 00:13:59.000 --> 00:23:53.000 And when that sea ice is forming the Fiat itself is relatively 00:23:53.000 --> 00:18:17.000 fresh from the salt water on that they could become smug Saltire 00:11:58.000 --> 00:20:42.000 and wipe a different story for one we want to tell today that's 00:20:42.000 --> 00:24:55.000 actually what drives a lot of the deep global ocean circulation 00:13:26.000 --> 00:23:49.000 further things would happen with sea ice around Antarctica. 00:23:49.000 --> 00:19:43.000 We were fixing the the deep political be overturning circulation 00:23:03.000 --> 00:12:44.000 alcohol plant. 00:16:55.000 --> 00:18:09.000 The progression of ourselves shelves and the ice sheet is also an 00:18:09.000 --> 00:23:30.000 interesting one. 00:23:30.000 --> 00:25:14.000 The melting away all the changes in ourselves don't directly 00:11:05.000 --> 00:22:28.000 affect civil rights of a but there are still Ferraris something 00:22:48.000 --> 00:13:42.000 for the gatekeepers particularly for Antarctica in terms of the 00:15:22.000 --> 00:16:08.000 rate at which ice flows from a grounded ice into the ocean and we 00:17:28.000 --> 00:22:11.000 believe in effect changes in the ice shelves are going to be that 00:22:51.000 --> 00:19:46.000 the major drivers in changing the dynamics of the whole why she 00:20:26.000 --> 00:19:00.000 could phone they do play a big role in in the future. 00:19:00.000 --> 00:11:11.000 Sea level. 00:19:11.000 --> 00:26:53.000 It's been compared to pulling the cork out of a bottle. 00:22:14.000 --> 00:15:35.000 Yes, 00:15:35.000 --> 00:21:28.000 all you can think of it as a keystone you know basically you have 00:21:28.000 --> 00:10:52.000 a big Ice shelf you know talking of the biggest ones are very 00:15:32.000 --> 00:15:36.000 firmly professionally in very large but that would in fact 00:16:16.000 --> 00:18:38.000 probably be called fees if they weren't. 00:18:38.000 --> 00:19:03.000 Follow us and the presence of the ice shelf there provides 00:15:14.000 --> 00:17:09.000 retiring stress that's holding back ice which is flowing typically 00:24:19.000 --> 00:17:54.000 I flew in Antarctica is concentrated into major quite fast moving 00:17:54.000 --> 00:24:14.000 out late. 00:24:54.000 --> 00:11:25.000 Well, 00:11:25.000 --> 00:27:50.000 if you know so I streams and it's quite focused for likely to top 00:12:31.000 --> 00:12:14.000 the lot of mentioning before and often is channeled into these 00:12:54.000 --> 00:11:57.000 very being ourselves and so if you do something to change the ice 00:11:57.000 --> 00:26:17.000 shelf. 00:26:17.000 --> 00:17:00.000 You're going to do something to change the whole balance of forces 00:19:20.000 --> 00:26:53.000 from that's that's restraining the writer was that ice flows into 00:27:43.000 --> 00:18:24.000 the ocean. 00:22:05.000 --> 00:26:29.000 It seems parts of Antarctica are actually below sea level. 00:26:29.000 --> 00:19:53.000 Is that correct and what would that continent look like without 00:19:53.000 --> 00:14:34.000 the ice cap. 00:24:44.000 --> 00:13:45.000 Yes, 00:13:45.000 --> 00:12:00.000 that's certainly true again that East West Antarctica dividing 00:12:00.000 --> 00:21:13.000 line is is perhaps a useful one here for a long time. 00:21:13.000 --> 00:25:17.000 We've known by probing through to see how thick the ice is and how 00:25:57.000 --> 00:24:21.000 far down that is bedrock company we've known. 00:24:21.000 --> 00:18:13.000 There's a lot of the West. 00:18:13.000 --> 00:15:07.000 And I think I see is standing on the sea floor maybe half a mile 00:15:07.000 --> 00:14:20.000 or more still needles but deep and that includes, 00:14:20.000 --> 00:15:31.000 actually the, 00:15:31.000 --> 00:21:04.000 the the summit agreed to between I suppose westwards to the Rafah 00:22:34.000 --> 00:13:39.000 itself and I thought flows eastwards towards you know a month of 00:15:19.000 --> 00:14:52.000 sitting in around towards South America. 00:14:52.000 --> 00:15:15.000 So if I cheat hadn't developed there. 00:15:15.000 --> 00:19:59.000 This would just the ocean one could go to work well could go 00:22:29.000 --> 00:22:33.000 sailing and what developed in the last 2 years, 00:22:33.000 --> 00:14:18.000 partly as a result of major aerial survey that we've done with ice 00:15:08.000 --> 00:22:21.000 cap project is we have better defined it. 00:22:21.000 --> 00:12:46.000 The extensive areas of East Antarctica are also seeking on bedrock 00:14:26.000 --> 00:19:08.000 that deep below sea level. 00:19:08.000 --> 00:28:28.000 In this case, 00:28:28.000 --> 00:14:42.000 said that turned out because I feel even sicker than we thought in 00:15:12.000 --> 00:26:42.000 some places, 00:26:42.000 --> 00:19:56.000 it's 2 miles thick and in particular, 00:19:56.000 --> 00:25:38.000 we've been exploring the aurora Basin, 00:25:38.000 --> 00:20:13.000 which is a vast area in the catchment of Tottenham life here and 00:24:13.000 --> 00:25:57.000 we heard inside the bedrock channels that connect that deep cover 00:29:27.000 --> 00:17:42.000 to the coast of of the aurora based around the world so called 00:18:12.000 --> 00:24:12.000 Wilkes. 00:24:12.000 --> 00:14:45.000 Sub-glacial basin which is immediately to its east. 00:14:45.000 --> 00:22:58.000 If the law Michael submarine part of of eastern our state 00:29:28.000 --> 00:18:21.000 convinced that we removed all the are with that, 00:18:21.000 --> 00:23:24.000 I think it would simply become a collection of islands you could 00:24:04.000 --> 00:27:27.000 fail from the Pacific to the Atlantic without having to go past 00:28:27.000 --> 00:16:30.000 Cape Horn and he can talk, 00:16:30.000 --> 00:17:23.000 it wouldn't have seen major itself, 00:17:23.000 --> 00:29:04.000 it might even writers see. 00:16:46.000 --> 00:14:59.000 And so until they new research done by a team, 00:14:59.000 --> 00:24:22.000 we didn't really understand how warmer waters could undermine this 00:24:22.000 --> 00:14:34.000 tartan glacier. 00:14:34.000 --> 00:16:55.000 How does it work. 00:16:55.000 --> 00:27:27.000 And how did you do the science to find this out. 00:28:18.000 --> 00:23:39.000 Yeah, 00:23:39.000 --> 00:30:19.000 the, 00:30:19.000 --> 00:29:14.000 the way that works is that will be crucial question for getting 00:29:14.000 --> 00:25:18.000 melting of ourselves and it's changing the follow. 00:29:28.000 --> 00:16:43.000 Ground a life behind used to working out is the warm ocean water 00:17:53.000 --> 00:16:48.000 nearby and more importantly all the pathways by which it can 00:29:18.000 --> 00:16:12.000 circulated to weigh up all the continental shelf and kind of 00:16:12.000 --> 00:18:46.000 actually getting into these cavities underneath the ice shelves. 00:18:46.000 --> 00:15:58.000 They have much in the time left, 00:15:58.000 --> 00:29:31.000 you can see how deep the ocean is if you fire up and down with on 00:29:31.000 --> 00:18:23.000 you know shit, 00:18:23.000 --> 00:16:47.000 but it's very hard to work out what's the geometry of the sea 00:17:27.000 --> 00:19:29.000 floor underneath. 00:19:29.000 --> 00:21:51.000 Maybe one of needing 2 kilometers of 00:15:23.000 --> 00:26:49.000 I now Wesley serving aircraft reviews have a radar system that can 00:27:19.000 --> 00:27:32.000 see right through to the base for the iPhone and can even see lot 00:27:32.000 --> 00:25:56.000 of internal structure through the life as well. 00:25:56.000 --> 00:26:49.000 We also have some magnetometers to try and figure out what sort of 00:29:29.000 --> 00:18:04.000 character and actually underlying the ICC most importantly for 00:18:04.000 --> 00:25:54.000 this work, 00:25:54.000 --> 00:16:19.000 we had a very sense the gravity money before long we mention my 00:17:19.000 --> 00:27:33.000 new variations in the strength of local gravity I'm flying very 00:29:03.000 --> 00:29:46.000 near the surface and very slowly. 00:29:46.000 --> 00:25:49.000 Obviously it's very maybe 140 knots, 00:25:49.000 --> 00:24:53.000 these is ideal for that sort of survey. 00:24:53.000 --> 00:23:57.000 You know they mean you have to fit now and there's a lot of 00:25:37.000 --> 00:25:41.000 detailed work to figure out how those tiny variations in the 00:26:51.000 --> 00:29:25.000 strength of work or gravity can be translated into what death of 00:30:55.000 --> 00:20:41.000 ice and water a raucous directly below your 5 track so I right I 00:20:41.000 --> 00:26:02.000 can't penetrate seawater water. 00:26:02.000 --> 00:16:47.000 So we don't see the bottom of an icy so we only 3 the bedrock 00:18:57.000 --> 00:23:29.000 where the ice is on the ground. 00:23:29.000 --> 00:17:02.000 But this gravity days are allowed us to map is inaccessible 00:30:02.000 --> 00:28:26.000 Welshman cavities underneath ourselves and indeed to map the 00:28:56.000 --> 00:20:48.000 seafloor off the coast. 00:20:48.000 --> 00:17:13.000 There were often see Astra meant ships from getting in and so what 00:17:53.000 --> 00:32:06.000 we've been able to do is to map out the shape of bedrock beneath 00:16:47.000 --> 00:25:01.000 this floating terminus of both the problem crisis around a 00:26:31.000 --> 00:30:05.000 neighboring ourself called the Moscow University herself and the 00:30:05.000 --> 00:23:19.000 most serious finding is that there are some deepwater channel that 00:27:09.000 --> 00:17:44.000 me open ocean to the charity and this includes a previously 00:20:34.000 --> 00:27:36.000 completely unknown Persia logical pathway. 00:27:36.000 --> 00:21:28.000 If you like another channel, 00:21:28.000 --> 00:21:32.000 it increases the prospect that what war can circulate into this 00:21:32.000 --> 00:29:37.000 cavity and maybe if the temperature of the water changes then the 00:25:28.000 --> 00:25:22.000 melting which is already quite extensive and therefore the 00:25:22.000 --> 00:19:44.000 dynamics of the system will change. 00:32:34.000 --> 00:28:37.000 And if you know the story ideas or thoughts on something you've 00:29:27.000 --> 00:17:43.000 heard contacted us can radio an equal shot of Darfur and that's 00:19:23.000 --> 00:26:25.000 radio equal shot and orgy. 00:16:57.000 --> 00:19:29.000 West you were list. 00:20:49.000 --> 00:29:12.000 Going to Radio Eco shock I'm Alex Smith with Australian scientist 00:29:12.000 --> 00:29:24.000 Rulon C Warner Rowland, 00:29:24.000 --> 00:18:08.000 can we expect any measurable sea level rise from the Tartan 00:19:18.000 --> 00:27:20.000 glacier complex say in this century. 00:23:01.000 --> 00:29:06.000 Yes we can in we're already seeing some small contribution to sea 00:29:06.000 --> 00:29:30.000 level rise and I'm not sure of that anybody's total all I have. 00:29:30.000 --> 00:17:36.000 Because the of us you know crisis dream that forms the life here 00:24:36.000 --> 00:21:07.000 is actually. 00:21:57.000 --> 00:28:01.000 Getting thinner near the coast in fact surface there has been in 00:28:31.000 --> 00:25:13.000 recent years and have a few years, 00:25:13.000 --> 00:33:13.000 they said. 00:33:13.000 --> 00:17:48.000 It's been dropping by maybe Vermeer and a half per year. 00:17:48.000 --> 00:30:49.000 So this is in fact innocent parties, 00:30:49.000 --> 00:21:45.000 one of the hot spots where they definitely ice loss in terms of 00:21:45.000 --> 00:29:27.000 what will happen in the rest of the century. 00:29:27.000 --> 00:24:33.000 We now know that it's possible to get water in there and dynamics 00:26:13.000 --> 00:26:07.000 of the top of the person says that this already some considerable 00:26:07.000 --> 00:31:09.000 melting going on there. 00:31:09.000 --> 00:19:25.000 We don't really know in detail how future climate high increase 00:21:15.000 --> 00:22:41.000 that supply and what the consequent transmission of that affect 00:34:21.000 --> 00:28:53.000 but level rise would be, 00:28:53.000 --> 00:21:26.000 but it's certainly anything parking. 00:21:26.000 --> 00:32:10.000 It's the place to wants went the timescale is centuries all of 00:18:11.000 --> 00:26:43.000 with a little more we don't quite know them, 00:26:43.000 --> 00:25:06.000 but if you people are taking this very seriously. 00:25:06.000 --> 00:29:46.000 Harris, 00:29:46.000 --> 00:21:29.000 perhaps in the fantastic haunts. 00:29:20.000 --> 00:27:53.000 To spend a lot of talk between scientists about the importance of 00:27:53.000 --> 00:30:54.000 the grounding line, 00:30:54.000 --> 00:21:15.000 what is that. 00:25:16.000 --> 00:31:56.000 Yes. 00:31:56.000 --> 00:26:50.000 The Grammy moments probably really more bizarre and it is winnable 00:27:40.000 --> 00:24:55.000 and Gracie actually starts to to go afloat whenever we just a 00:24:55.000 --> 00:24:06.000 scuffle what event. 00:24:06.000 --> 00:26:41.000 I think that I think to be really on the sea floor and as its 00:27:11.000 --> 00:24:35.000 forces towards the Mars and eventually there comes a point where 00:21:06.000 --> 00:33:38.000 it simply going to go off white given direction of life. 00:33:38.000 --> 00:21:49.000 Well, 00:21:49.000 --> 00:24:52.000 it probably would be better if it was called the underground 00:32:02.000 --> 00:28:43.000 entwined. 00:28:43.000 --> 00:23:25.000 One of the flotation line, 00:23:25.000 --> 00:32:18.000 it's important because it's the place where suddenly the base of 00:32:18.000 --> 00:32:43.000 the ice sheet is not protected by by being on the ground and 00:35:23.000 --> 00:29:38.000 suddenly the possibility of wish and driven melting the UMP 00:33:48.000 --> 00:24:52.000 commences and I should say that it's again something we've only 00:25:52.000 --> 00:35:46.000 learned in the last 2 decades that near these crowning line 00:20:47.000 --> 00:26:41.000 somewhere often the ice is very deep here in Miami Tottenham we're 00:27:31.000 --> 00:29:55.000 talking about a transition point that's probably a mile below sea 00:29:55.000 --> 00:28:06.000 level. 00:28:06.000 --> 00:23:21.000 The the the melting even is grounding aren't these 10s of meters 00:24:41.000 --> 00:32:44.000 year maybe 15 years here. 00:32:44.000 --> 00:31:17.000 And given that the water was doing that and they'll think it still 00:31:17.000 --> 00:27:12.000 by by any swimmers stand I'm very close to freezing. 00:27:12.000 --> 00:32:46.000 It's likely that this is an extremely thing to be part of of the 00:32:46.000 --> 00:20:58.000 climate system. 00:20:58.000 --> 00:25:01.000 So that's the first thing that's important about the grounding. 00:25:01.000 --> 00:27:44.000 On the second thing that's important is this, 00:27:44.000 --> 00:23:19.000 particularly in some configurations of the bedrock these grounding 00:23:19.000 --> 00:30:00.000 lines themselves my move. 00:30:00.000 --> 00:25:54.000 So it's not just a matter of bringing more iced up to her. 00:25:54.000 --> 00:32:47.000 You know my fixed gaze and then having to follow through their and 00:33:17.000 --> 00:33:31.000 and and they'll it's not possible that the grounding itself will 00:33:31.000 --> 00:27:05.000 migrate inland reducing the 5 on the ground and the high street 00:20:36.000 --> 00:28:30.000 and transmitting these changes in the forces of the even further 00:29:50.000 --> 00:20:21.000 upstream. 00:22:02.000 --> 00:29:13.000 We'll sea level rises. 00:29:13.000 --> 00:29:36.000 The real wildcard when we think about the impact of Antarctic 00:31:36.000 --> 00:31:49.000 melting I've just gone through a paper by lead author Fernando 00:35:39.000 --> 00:25:44.000 Apollo titled volume loss from Antarctic ice shelves is 00:25:44.000 --> 00:30:45.000 accelerating. 00:30:45.000 --> 00:27:19.000 Is it just the ice shelves or is ice loss from Antarctica 00:29:39.000 --> 00:23:02.000 increasing and at a faster rate. 00:23:02.000 --> 00:33:22.000 Do we know. 00:34:23.000 --> 00:25:44.000 Yeah, 00:25:44.000 --> 00:22:06.000 I do this comes back to that. 00:22:06.000 --> 00:36:56.000 The point we were. 00:22:57.000 --> 00:35:20.000 This guy thing you know you know that these guys have done a great 00:36:30.000 --> 00:22:14.000 job in trying to improve our understanding about what's happening 00:22:14.000 --> 00:31:28.000 to ice shelves previously we had quite good measurements swimmer 00:21:59.000 --> 00:36:22.000 quite precise either of you sort of that was flying in space for a 00:37:02.000 --> 00:36:16.000 few years showing that these ice shelves of getting home and I'm 00:28:57.000 --> 00:24:22.000 really hard problem because given look I shelf it's floating. 00:24:22.000 --> 00:21:16.000 If you see half a meter change in the surface height of the 00:22:26.000 --> 00:22:10.000 fighting are so often means that he lost 5 meters ice from the 00:22:10.000 --> 00:31:02.000 wire what they've done here, 00:31:02.000 --> 00:21:23.000 he said. 00:21:23.000 --> 00:37:47.000 While at 5-year record is is rather short and some of the longest 00:37:47.000 --> 00:23:00.000 recall that's available actually heavenly. 00:23:00.000 --> 00:31:34.000 And I think he is from some writer satellites that were measuring 00:33:24.000 --> 00:34:59.000 the height and ice shelves and so they've been able to conclude 00:36:49.000 --> 00:26:15.000 that ice shelves are certainly on the whole it so they're losing 00:26:06.000 --> 00:26:59.000 which is actually slightly fresh link the Antarctic coastal 00:29:09.000 --> 00:22:32.000 erosion but because beginning Feb. 00:22:32.000 --> 00:35:46.000 They are also likely reducing this restraining force they have on 00:35:46.000 --> 00:33:49.000 the high street and in fact they are when they see the biggest 00:35:39.000 --> 00:30:41.000 changes in West Antarctica, 00:30:41.000 --> 00:24:25.000 in those places where there out like have been observed to be 00:26:05.000 --> 00:28:06.000 speeding up, 00:28:06.000 --> 00:28:02.000 so it's only important and it's important in terms of what we, 00:28:02.000 --> 00:25:57.000 what we think is one of the controllers of Chinese in the ICC and 00:33:37.000 --> 00:22:30.000 they level contributions from the itself. 00:24:21.000 --> 00:34:12.000 In a comment on that article, 00:34:12.000 --> 00:26:05.000 one of the scientists Lori pad been expressed. 00:26:05.000 --> 00:22:28.000 There's a lot of uncertainty about what will happen on Antarctica 00:26:18.000 --> 00:32:09.000 as the world climate changes. 00:32:09.000 --> 00:38:49.000 In fact, 00:38:49.000 --> 00:28:30.000 he said. 00:28:30.000 --> 00:38:03.000 Quote it is plausible that even if the Earth's average temperature 00:38:03.000 --> 00:33:47.000 increases effect on ocean currents around Antarctica might 00:33:47.000 --> 00:34:01.000 actually work against Antarctic ice sheet melting and he goes on 00:34:01.000 --> 00:35:25.000 to say that that past a records may not tell us a lot because 00:24:06.000 --> 00:28:19.000 we're changing the climate so fast compared to what happened in 00:28:19.000 --> 00:34:11.000 past times what do you think about all that. 00:38:22.000 --> 00:25:43.000 Well, 00:25:43.000 --> 00:28:54.000 it's true that one, 00:28:54.000 --> 00:28:28.000 one has to be careful about he was financial planners tell you 00:29:58.000 --> 00:28:12.000 part the performance is guaranteed a future performance, 00:28:12.000 --> 00:28:45.000 but with changing the composition of the atmosphere, 00:28:45.000 --> 00:35:50.000 and so he's corrective driver for changing climate is no longer be 00:39:00.000 --> 00:25:15.000 the Milinkevich the so called ice age cycle I do those changes 00:26:05.000 --> 00:25:49.000 were pretty dramatic in terms of sea level rise 20,000 years ago 00:26:49.000 --> 00:38:12.000 when was great Hemisphere ice sheets and decayed but certainly 00:23:33.000 --> 00:27:17.000 we're forcing system a lot faster around them any natural forcing 00:27:17.000 --> 00:25:32.000 that's these apply I'd be a little surprised if it was actually 00:25:32.000 --> 00:28:06.000 going to have to work against I see my thing on the whole the deep 00:28:06.000 --> 00:34:36.000 ocean, 00:34:36.000 --> 00:30:40.000 he's already warming and you've only got to warm water a little 00:31:30.000 --> 00:33:34.000 bit for it to carry a lot of heat campaign turns away he can be 00:33:34.000 --> 00:30:58.000 carried by changes in air temperature. 00:30:58.000 --> 00:39:13.000 So I think that the changing dynamic response is going to be quite 00:39:13.000 --> 00:30:37.000 high and that's so hard to see who we can avoid conveying that 00:32:27.000 --> 00:34:31.000 don't want to really high shelves and then by weakening ourselves 00:26:22.000 --> 00:38:34.000 increase some nice discharge from Antarctica. 00:38:34.000 --> 00:25:17.000 It's only warmer air temperatures will generate some higher 00:28:27.000 --> 00:31:11.000 snowfall that it's not really clear that that can dominate the 00:32:31.000 --> 00:33:04.000 sort of exhilaration the life and we've already seen. 00:29:05.000 --> 00:28:38.000 And Lori tab and also talked about the irony that sea levels 00:28:38.000 --> 00:27:12.000 around Antarctica and Greenland may actually go down as the 00:27:12.000 --> 00:24:33.000 glaciers melt. 00:24:33.000 --> 00:26:14.000 How is that possible. 00:29:05.000 --> 00:33:25.000 You know, 00:33:25.000 --> 00:39:55.000 this is, 00:39:55.000 --> 00:30:29.000 this is quite amazing it another one of these obvious in hindsight 00:33:39.000 --> 00:25:14.000 inside it's looking pretty recently insightful from both us anyway 00:25:14.000 --> 00:40:07.000 . Any sort of water surface Rep Of in fact commonsense idea of 00:24:58.000 --> 00:33:21.000 level since obviously water flows downhill. 00:33:21.000 --> 00:30:25.000 In fact the FTSE service mission with precision from space shows 00:34:35.000 --> 00:36:57.000 that that idea down here only. 00:37:37.000 --> 00:35:11.000 Modulated by all sorts of things like currents and winds of other 00:37:01.000 --> 00:37:22.000 factors. 00:37:22.000 --> 00:32:56.000 And in particular the vast method ice on these grounds. 00:32:56.000 --> 00:40:09.000 That's a sufficient gravitational attraction to pull the ocean 00:31:40.000 --> 00:39:01.000 around them towards them. 00:39:01.000 --> 00:28:45.000 And this generates an an up slope in. 00:28:45.000 --> 00:30:49.000 He is the sea surface around the ice sheets and so it work, 00:30:49.000 --> 00:41:23.000 what if you're losing what sort of advice billions of tons a life 00:29:04.000 --> 00:29:38.000 in that reduces its attraction and a bit of a surprise intuition 00:33:58.000 --> 00:34:59.000 and nearby streets. 00:34:59.000 --> 00:40:02.000 This comes out why the overall effect that you put that all into 00:41:02.000 --> 00:25:55.000 the global 3 level, 00:25:55.000 --> 00:39:08.000 but in fact merely hosting the 3 level with pregnant fall 00:41:08.000 --> 00:27:11.000 considerably more and in fact, 00:27:11.000 --> 00:32:34.000 they've only been a few idealized computer simulations trying to 00:32:34.000 --> 00:27:25.000 put this in. 00:27:25.000 --> 00:32:49.000 I think you into countenance does provide a little bit of a 00:40:59.000 --> 00:35:44.000 stabilizer to to grabbing line retreat if 3 we will media actually 00:36:44.000 --> 00:41:36.000 doing a relic later is falling. 00:41:36.000 --> 00:36:30.000 I should just say there's the bad news consequence of local effect 00:36:30.000 --> 00:39:03.000 which it means that those who level rises more than you might have 00:39:03.000 --> 00:37:07.000 expected far away from you know I think there are some estimates 00:30:58.000 --> 00:41:59.000 that in North America, 00:41:59.000 --> 00:36:44.000 you might get 25% more than global average the level but when 00:32:25.000 --> 00:42:35.000 Northwest. 00:42:35.000 --> 00:42:36.000 But what will have to go somewhere. 00:41:07.000 --> 00:37:38.000 Right now, 00:37:38.000 --> 00:38:31.000 some scientists including the Intergovernmental Panel on climate 00:40:01.000 --> 00:33:26.000 change suggest total sea level rise by 2100 may only be one meter 00:39:56.000 --> 00:30:19.000 others think that's a very conservative estimate, 00:30:19.000 --> 00:42:32.000 we might get that much from Antarctic melting alone plus what 00:26:43.000 --> 00:41:44.000 comes from the Arctic Roland Warren. 00:41:44.000 --> 00:38:25.000 What do you think. 00:32:56.000 --> 00:38:56.000 Yeah, 00:38:56.000 --> 00:26:53.000 it is you know finally unforgiving question the contribution, 00:26:53.000 --> 00:33:55.000 particularly from Antarctic ever trauma. 00:33:55.000 --> 00:41:05.000 I see. 00:42:25.000 --> 00:39:21.000 In general terms and global sea level rise the IPCC is as you say 00:39:21.000 --> 00:41:34.000 , coming up with numbers of the regardless comforted by also have 00:41:54.000 --> 00:32:35.000 to come up. 00:32:35.000 --> 00:34:08.000 Of course with what they think might happen under a whole range of 00:27:29.000 --> 00:34:13.000 of efforts and because of the immense scrutiny. 00:34:13.000 --> 00:38:59.000 The IPCC hands they do put a lot of effort into qualifying. 00:38:59.000 --> 00:39:24.000 What they mean by being uncertain about something and you know you 00:39:24.000 --> 00:27:28.000 can go and look at their tables and if they say very likely there 00:27:58.000 --> 00:32:42.000 meant he was such a such a probability percentage but when it came 00:34:52.000 --> 00:40:27.000 to Antarctica they they finally had to give up on that, 00:40:27.000 --> 00:33:12.000 and while I think that everybody collapse of these so called 00:33:12.000 --> 00:33:17.000 marine sectors of Antarctic ice sheet if initiated could make fee 00:35:17.000 --> 00:27:52.000 level rise substantially above the unlikely range the best they 00:27:52.000 --> 00:35:35.000 could do was say this additional contribution would not exceed 00:39:45.000 --> 00:30:32.000 several tents ultimately tire during the 21st century now for be 00:31:52.000 --> 00:27:47.000 over weapons from listen carefully calibrated on for me in terms 00:28:27.000 --> 00:31:37.000 of, 00:31:37.000 --> 00:34:11.000 you know several tenths of a meter cover the everywhere from you 00:34:11.000 --> 00:35:24.000 know 20cm to the best part of a meter. 00:35:24.000 --> 00:37:40.000 So this really is the most uncertain contribution towards her long 00:37:40.000 --> 00:37:13.000 term 3 level prediction things like a federal expansion of the 00:37:43.000 --> 00:39:26.000 ocean pretty well on the controlling terms, 00:39:26.000 --> 00:42:36.000 you know, 00:42:36.000 --> 00:35:50.000 I think that for various different climate warming scenario now 00:38:10.000 --> 00:29:54.000 graces of often fairly hard to do at least and I thought we were 00:31:14.000 --> 00:31:58.000 of the worst that can happen is they might eventually old me on, 00:31:58.000 --> 00:36:28.000 you know, 00:36:28.000 --> 00:44:42.000 one of that sort of analysis to Antarctica on Greenland. 00:44:42.000 --> 00:35:35.000 So we got a useful worst case scenario, 00:35:35.000 --> 00:29:30.000 because it tells you something like 60 millions feeling harassed, 00:29:30.000 --> 00:44:22.000 which is certainly not going to happen any time soon, 00:44:22.000 --> 00:31:46.000 but it's also not a useful you know in member. 00:36:27.000 --> 00:28:58.000 Because, 00:28:58.000 --> 00:34:18.000 really, 00:34:18.000 --> 00:36:42.000 it's so shocking if would rearrange civilization altogether if we 00:36:42.000 --> 00:33:04.000 eventually get that much but as you say, 00:33:04.000 --> 00:31:36.000 we're talking at least in centuries. 00:35:49.000 --> 00:36:14.000 You're listening to shock radio before the world and. 00:41:24.000 --> 00:37:48.000 I'm Alex Smith get all their website shock.org. 00:40:01.000 --> 00:32:52.000 Don't forget, 00:32:52.000 --> 00:45:05.000 or a hot interview with proper garden wizard Marjorie Wilde is 00:45:05.000 --> 00:40:16.000 still to come. 00:37:58.000 --> 00:38:21.000 This is Radio Eco shock were talking with Australian Antarctic 00:39:41.000 --> 00:32:05.000 expert Dr. Roland Warner another complication difficult for 00:32:55.000 --> 00:30:28.000 non-scientist Dr. awarded to understand is the prediction that 00:31:08.000 --> 00:35:12.000 snowfall on Antarctica may actually increase with climate change. 00:35:12.000 --> 00:36:55.000 And even that may help speed glacier movement to the sea. 00:36:55.000 --> 00:31:57.000 Can you talk to us about that please. 00:29:48.000 --> 00:35:58.000 Yes, 00:35:58.000 --> 00:36:21.000 I think we certainly expect that the most think is not yet 00:38:01.000 --> 00:34:55.000 receiving the sort of squandering warming that's been so dramatic 00:36:15.000 --> 00:33:37.000 in the Antarctic Peninsula. 00:33:37.000 --> 00:45:30.000 And that may be partly due to slowly fighting other thing. 00:33:51.000 --> 00:33:54.000 From the of these on hold in Antarctica, 00:33:54.000 --> 00:45:58.000 which has tended to have an influence on on Antarctic climate but 00:29:49.000 --> 00:45:40.000 if the it image arises. 00:45:40.000 --> 00:35:23.000 It's still going to be very cold, 00:35:23.000 --> 00:39:57.000 but clearly warmer air can hold more moisture and everybody does 00:39:57.000 --> 00:39:00.000 expect that that's not fault when Antarctica. 00:39:00.000 --> 00:41:15.000 We will increase and part seems studies that suggest that that 00:38:46.000 --> 00:35:21.000 itself accelerates the 4 out of the ocean. 00:35:21.000 --> 00:44:45.000 I think that 30 increased melting of ourselves. 00:44:45.000 --> 00:33:47.000 It is likely to be enough. 00:33:47.000 --> 00:35:52.000 I'm eager think in that some of the studies the need. 00:35:52.000 --> 00:41:22.000 You know it. 00:41:22.000 --> 00:37:26.000 20 years ago so that you know if you think it's going to take out 00:39:16.000 --> 00:30:51.000 a thousand years to establish some new equilibrium then with do 00:30:51.000 --> 00:38:25.000 you get 2 meters or 3 meters of sea level rise from Antarctica 00:33:56.000 --> 00:41:49.000 would depend on whether you had factored in this compensating 00:45:19.000 --> 00:33:33.000 effect on of high rates of snowfall in Antarctica, 00:33:33.000 --> 00:38:45.000 because obviously so far the Antarctic, 00:38:45.000 --> 00:43:19.000 there is really nothing putting feel right away in the bank and it 00:45:29.000 --> 00:44:03.000 can take understood however that you start to flow back so it's 00:45:23.000 --> 00:35:46.000 certainly an important compensating effect, 00:35:46.000 --> 00:33:50.000 but I think the Democratic response really driven by the ocean is 00:34:20.000 --> 00:40:54.000 going to be that the biggest influence on Antarctic trying. 00:31:45.000 --> 00:36:25.000 Right. 00:36:25.000 --> 00:33:57.000 It's hard for people to understand that it's, 00:33:57.000 --> 00:31:20.000 it's not that the warming air temperatures going to melt he sings 00:31:20.000 --> 00:46:20.000 from above, 00:46:20.000 --> 00:41:14.000 it's at the hotter ocean reaching in is going to weaken them from 00:43:24.000 --> 00:31:25.000 below, 00:31:25.000 --> 00:39:35.000 isn't it. 00:39:35.000 --> 00:47:45.000 The story. 00:44:26.000 --> 00:36:28.000 That's certainly what we're seeing, 00:36:28.000 --> 00:39:31.000 particularly because some of the areas further but changing the 00:39:31.000 --> 00:44:15.000 most practically at the moment in the area of of Antarctica and so 00:44:15.000 --> 00:37:17.000 on in the Pacific Ocean, 00:37:17.000 --> 00:33:08.000 in the, 00:33:08.000 --> 00:40:42.000 on the I'm this is almost about as far south as you can actually 00:41:42.000 --> 00:48:02.000 find was. 00:37:13.000 --> 00:38:16.000 Before you actually bumping into Antarctica and you know it's 00:40:06.000 --> 00:44:57.000 there with it. 00:44:57.000 --> 00:40:51.000 Temperatures are still well although for you think that that we're 00:42:21.000 --> 00:36:14.000 seeing these these biggest changes and it is one of the places 00:36:14.000 --> 00:34:29.000 where we know that when the warm ocean currents circulate normally 00:35:29.000 --> 00:34:32.000 at some distance around Antarctica do manage, 00:34:32.000 --> 00:48:05.000 but by virtue of currents and the topography of them Continental 00:33:06.000 --> 00:37:46.000 Shelf, 00:37:46.000 --> 00:42:10.000 the new mines to come into all the here and certainly here so that 00:42:50.000 --> 00:45:40.000 the, 00:45:40.000 --> 00:33:43.000 the power of our ocean water. 00:33:43.000 --> 00:38:33.000 Well, 00:38:33.000 --> 00:42:23.000 sort of, 00:42:23.000 --> 00:45:13.000 that's, 00:45:13.000 --> 00:46:14.000 you know the risk for me, 00:46:14.000 --> 00:33:59.000 the effect all of warmer air temperature at least in the more 00:33:59.000 --> 00:41:54.000 northerly parts of Antarctica where temperature and from a mill 00:43:04.000 --> 00:32:59.000 things on the surface of these ice shelves is actually certainly 00:36:19.000 --> 00:34:44.000 playing a big role in the rather dramatic disintegration over the 00:34:44.000 --> 00:44:07.000 matter of a few weeks of a few ourselves in the Antarctic 00:45:37.000 --> 00:39:48.000 Peninsula. 00:39:48.000 --> 00:38:29.000 Back on them. 00:38:29.000 --> 00:43:40.000 I mean last century. 00:46:51.000 --> 00:34:02.000 Well, 00:34:02.000 --> 00:42:45.000 all along we've talked about West Antarctica and East Antarctica 00:42:45.000 --> 00:41:58.000 as though they were almost separate parts of the puzzle. 00:41:58.000 --> 00:41:41.000 Are there any generalizations you can give us about what is 00:41:41.000 --> 00:43:04.000 happening in these 2 halves compared to each other. 00:37:35.000 --> 00:33:06.000 Yeah, 00:33:06.000 --> 00:41:09.000 it's interesting that in some ways and they they do fit being 00:43:39.000 --> 00:39:23.000 described as if they were 2 different worlds, 00:39:23.000 --> 00:41:07.000 the observational evidence we have fallen further Oval Office the 00:45:37.000 --> 00:41:11.000 Heisman tactics because we can actually directly made the 00:43:41.000 --> 00:35:57.000 disappearance of ice from space either by seeing the change in the 00:41:27.000 --> 00:35:59.000 fall of the ice surface, 00:35:59.000 --> 00:33:33.000 telling us that the eye soothing cinnamon falling off or by 00:33:33.000 --> 00:39:35.000 actually worryingly the from space. 00:39:35.000 --> 00:49:49.000 We can tell that within topic is where currently mostly action is 00:39:30.000 --> 00:39:02.000 overall it is Antarctica, 00:39:02.000 --> 00:39:35.000 very little change may be some slight overall increase, 00:39:35.000 --> 00:38:59.000 although this area around the Tottenham place is one of the hot 00:38:59.000 --> 00:42:59.000 spot. 00:47:49.000 --> 00:40:53.000 Fantastic areas that's the place with his most consistent I floss 00:40:53.000 --> 00:34:54.000 going on there, 00:34:54.000 --> 00:35:48.000 which is what the reasons we have interested but so in terms of 00:37:08.000 --> 00:46:39.000 the current response. 00:46:39.000 --> 00:35:32.000 This seems to be 2 separate worlds. 00:35:32.000 --> 00:46:52.000 However, 00:46:52.000 --> 00:39:23.000 what we, 00:39:23.000 --> 00:50:16.000 realizing as we discussed earlier is these parts of East 00:34:27.000 --> 00:38:51.000 Antarctica in terms of this very deep bedrock well below sea level 00:37:42.000 --> 00:43:16.000 channels can anything that out towards the new some of that is a 00:44:36.000 --> 00:40:11.000 lot more like West Antarctica in terms of its setting people 00:43:21.000 --> 00:35:16.000 previously thought they could well be that it's simply a matter of 00:41:46.000 --> 00:48:30.000 the response of the forcing and perhaps in East Antarctica in the 00:48:30.000 --> 00:38:51.000 future, 00:38:51.000 --> 00:44:25.000 we might see phenomenal wing of recognize from what we presently 3 00:47:35.000 --> 00:44:06.000 West Antarctica. 00:42:27.000 --> 00:41:01.000 Dr. Warner are we able to say whether in total Antarctica is 00:41:01.000 --> 00:36:35.000 losing mass staying the same or gaining ice mass. 00:45:45.000 --> 00:35:16.000 Yeah, 00:35:16.000 --> 00:34:30.000 it's very clearly losing harness and there's pretty good evidence 00:38:10.000 --> 00:50:23.000 for that rate of losses XL or anything that comes from the direct 00:34:54.000 --> 00:44:58.000 observation for growing putting the icing on on the sky often 00:48:48.000 --> 00:37:33.000 turning you know you're so that will often with Antarctic it 00:40:13.000 --> 00:37:07.000 without weighing flight increases a whole stability in East 00:37:07.000 --> 00:44:38.000 Antarctica. 00:44:38.000 --> 00:51:21.000 The experts think that in maybe another year of observations will 00:36:52.000 --> 00:45:36.000 be in a better position to sort out influence in that process of 00:37:17.000 --> 00:38:18.000 seasonal variations, 00:38:18.000 --> 00:45:38.000 if you like, 00:45:38.000 --> 00:43:20.000 particularly in snowfall, 00:43:20.000 --> 00:44:21.000 it's quite impressive. 00:44:21.000 --> 00:37:03.000 The talking from space. 00:37:03.000 --> 00:43:16.000 You can actually seeing this actually isn't very much is at the 00:44:06.000 --> 00:35:19.000 scene Greenland in Antarctica, 00:35:19.000 --> 00:43:32.000 but you can actually seeing Greenland the seasonal arrival of the 00:44:22.000 --> 00:47:35.000 big dumps of snow that come in the winter and the great a loss of 00:45:56.000 --> 00:43:47.000 over the summer, 00:43:47.000 --> 00:46:30.000 I mean it's actually that their annual cycle quite visible, 00:46:30.000 --> 00:44:53.000 you know if I think there is things are not quite clear because 00:51:53.000 --> 00:49:17.000 things are happening on Holmgren Earth's lower scale, 00:49:17.000 --> 00:42:11.000 but people I convinced that you know cutting observations longer 00:49:51.000 --> 00:49:56.000 will allow us through to sort out trends without the confusion of 00:39:57.000 --> 00:38:28.000 these variations. 00:50:08.000 --> 00:36:29.000 Well, 00:36:29.000 --> 00:43:22.000 the key question was sea level rises always when and we discussed 00:43:22.000 --> 00:40:33.000 this a little bit, 00:40:33.000 --> 00:37:37.000 but do we have enough science yet to really know how much 00:38:07.000 --> 00:48:50.000 Antarctica will add to the world's oceans during this century. 00:37:12.000 --> 00:40:12.000 No, 00:40:12.000 --> 00:47:32.000 we don't, 00:47:32.000 --> 00:46:17.000 it's actually 2 biggest unknown in trying to predict what sea 00:47:47.000 --> 00:43:02.000 level to expect and in fact the IPCC felt they couldn't even give 00:43:02.000 --> 00:41:06.000 you an opinion about how much of the response might vary according 00:41:06.000 --> 00:45:10.000 to what for the phone global warming practical trajectory we we 00:45:10.000 --> 00:45:31.000 found ourselves on. 00:45:31.000 --> 00:50:52.000 So it's, 00:50:52.000 --> 00:45:05.000 it's quite serious on their own and the other thing about and how 00:45:05.000 --> 00:48:00.000 to his that is a lot of life there we finally passed on the fact 00:49:10.000 --> 00:51:05.000 that I see is sitting on this this well below sea level rock. 00:51:05.000 --> 00:39:10.000 One of the other complications several areas west Antarctica is 00:40:40.000 --> 00:49:01.000 for the paradigm for this. 00:49:01.000 --> 00:37:45.000 I guess the better just get a deeper and deeper and deeper as you 00:37:45.000 --> 00:38:09.000 go towards the interior of the ice sheet and so there is a 00:38:09.000 --> 00:38:40.000 possibility. 00:38:40.000 --> 00:42:34.000 And in fact this part of the marine instability there is a 00:42:34.000 --> 00:37:58.000 prospect of if the grounding line is starting to move inland it'll 00:40:18.000 --> 00:42:22.000 just keep on going and it will continue to retrieve and you 00:42:22.000 --> 00:44:16.000 continue to lose a life until you finally managed to heavy rice 00:45:16.000 --> 00:45:40.000 sheep catch itself on some bedrock features and so on the state of 00:45:40.000 --> 00:47:52.000 Alaska have retreat process. 00:47:52.000 --> 00:42:55.000 So what sort of year they were centuries. 00:42:55.000 --> 00:48:40.000 This is rather uncertain and the prospect is good you can keep on 00:50:40.000 --> 00:47:44.000 giving and they could keep on giving even if we stabilize the 00:47:44.000 --> 00:48:36.000 world in some warmer started. 00:46:07.000 --> 00:47:21.000 Yes I think NASA so came out and said that the process is 00:47:21.000 --> 00:43:52.000 unstoppable. 00:38:53.000 --> 00:50:54.000 Yes the, 00:50:54.000 --> 00:42:35.000 the, 00:42:35.000 --> 00:45:48.000 and I think what's happening in this I'm I'm simply region with a 00:45:48.000 --> 00:39:13.000 couple of them being places they like white guys here is they feel 00:41:13.000 --> 00:41:17.000 they've done enough on bedrock profiling there again using his 00:41:17.000 --> 00:40:31.000 high penetrating radar system to say they can't see any obvious. 00:44:01.000 --> 00:48:14.000 Neil anchor points that would stop further retreat, 00:48:14.000 --> 00:50:29.000 but has currently started so when the IPCC said market get more 00:51:59.000 --> 00:38:54.000 civil rights and we can't really quantify it if we start to 00:38:54.000 --> 00:53:28.000 initiate the citizenry nicely collapse it. 00:53:28.000 --> 00:52:41.000 It's possible always seeing the first stages and already. 00:54:32.000 --> 00:43:46.000 Please tell us about a couple of projects the Antarctic climate 00:43:46.000 --> 00:50:19.000 and ecosystems Cooperative Research Centre has on the go. 00:41:10.000 --> 00:42:22.000 Right will be that we just had, 00:42:22.000 --> 00:43:27.000 I think the renewed last year so we there so that they'll stall 00:43:57.000 --> 00:45:22.000 with what we think of the most pressing issues even part of the 00:45:22.000 --> 00:45:37.000 ecosystem area and so we have a major overarching projects on this 00:48:37.000 --> 00:41:01.000 ocean driven election of the Antarctic ice and Billy always 00:42:11.000 --> 00:47:41.000 matters. 00:47:41.000 --> 00:54:13.000 We've been talking about tonight. 00:54:13.000 --> 00:49:38.000 You know activities range from voyages with we had a voyage where 00:50:28.000 --> 00:42:49.000 they are right, 00:42:49.000 --> 00:45:52.000 that is ice breaker to the front of the Tottenham away if you know 00:45:52.000 --> 00:47:57.000 , and just this time January where they did actually verify the 00:47:57.000 --> 00:47:31.000 first time anybody's got this for the coming crop of Tottenham. 00:47:31.000 --> 00:52:21.000 If I. 00:50:23.000 --> 00:42:18.000 Pack I just 5 permanent captain was brave enough to try only and 00:42:58.000 --> 00:53:51.000 get some maintenance and so we do know that the warm water is 00:53:51.000 --> 00:49:25.000 actually arriving there at the front of the charity and with this 00:49:25.000 --> 00:48:58.000 work at just being published. 00:48:58.000 --> 00:53:18.000 Well, 00:53:18.000 --> 00:54:10.000 I should say time Damon Green down from them. 00:54:10.000 --> 00:41:05.000 University of Texas in Austin we now think that we can the 00:46:15.000 --> 00:39:49.000 channels by which water is gonna make its way onto the ice. 00:39:49.000 --> 00:43:29.000 So, 00:43:29.000 --> 00:55:02.000 the problem remains a major interest for us, 00:55:02.000 --> 00:41:38.000 we've already been doing most circulation more studies to try and 00:41:38.000 --> 00:52:11.000 explore how the ocean circulation moves underneath my shelves and 00:52:11.000 --> 00:40:16.000 also how the resulting water affects the external, 00:40:16.000 --> 00:45:30.000 and now that we've gone an improved picture of what the state 00:47:40.000 --> 00:50:31.000 underneath the problem looks like, 00:50:31.000 --> 00:56:15.000 but will be going back dramas again and the big step forward is to 00:56:15.000 --> 00:48:09.000 start coupling the dynamics of the ice shelves the flow of the 00:48:09.000 --> 00:43:03.000 ground and I behind with the ocean because on as if your melting 00:53:53.000 --> 00:49:18.000 the bottom of changing geometry of that that changes were talking 00:50:08.000 --> 00:52:18.000 with. 00:53:48.000 --> 00:43:01.000 You know he arrives and what was living in, 00:43:01.000 --> 00:41:44.000 we need to topple assistance together eventually that will become 00:42:34.000 --> 00:42:38.000 part of in times of system model, 00:42:38.000 --> 00:41:42.000 we'll be doing more so they work with area geophysical surveys 00:48:52.000 --> 00:48:37.000 exploring them prices a bedrock and Antarctica we're used to be 00:48:37.000 --> 00:53:28.000 that talking on the phone. 00:53:28.000 --> 00:53:30.000 Part of the whole planet without them person, 00:53:30.000 --> 00:43:32.000 which is a the lapels, 00:43:32.000 --> 00:50:04.000 and we know what's some of these part of Antarctica. 00:50:04.000 --> 00:43:19.000 So that work will be continuing and we've also got film programs 00:44:59.000 --> 00:45:23.000 homely namely myself this is extent I think biggest ice shelf in 00:48:03.000 --> 00:42:57.000 Antarctica is 3rd largest myself and we've had field program there 00:43:47.000 --> 00:51:10.000 with oceanographic instruments that were deployed by drilling 00:51:10.000 --> 00:45:24.000 through nearly a thousand meters of of ice shelf and appalling 00:45:24.000 --> 00:54:57.000 instruments in the ocean underneath enormous find out what's 00:54:57.000 --> 00:55:00.000 actually going on in these rather the inaccessible parts of the 00:56:40.000 --> 00:44:01.000 planet. 00:54:51.000 --> 00:53:13.000 You know what hearing you talk, 00:53:13.000 --> 00:44:07.000 it almost sounds like we're trying to discover some things about 00:45:47.000 --> 00:53:47.000 Mars. 00:53:47.000 --> 00:55:50.000 You know it's a mile deep beneath the ice, 00:55:50.000 --> 00:54:02.000 it's very difficult to peer around, 00:54:02.000 --> 00:57:12.000 we, 00:57:12.000 --> 00:54:54.000 we don't know a lot of things it. 00:54:54.000 --> 00:50:17.000 It's amazing that we're finding out as much as we do. 00:47:28.000 --> 00:54:08.000 Yeah, 00:54:08.000 --> 00:52:09.000 it's. 00:52:09.000 --> 00:57:29.000 But we, 00:57:29.000 --> 00:46:13.000 we thought that if I cap survey come Casey staging of us and say 00:46:13.000 --> 00:57:15.000 we don't have a thousand kilometers long and, 00:57:15.000 --> 00:52:38.000 back home on each flight there, 00:52:38.000 --> 00:54:19.000 there was an area where they were, 00:54:19.000 --> 00:52:25.000 maybe 2 ground based survey the of whole previous 50 years I had 00:53:25.000 --> 00:55:09.000 talking exploration and we would gather that stay there in an 00:55:09.000 --> 00:44:14.000 8-hour flight and Soviet with further citing it in there were 00:45:54.000 --> 00:49:45.000 still a few places, 00:49:45.000 --> 00:54:07.000 which we hope to get to where it. 00:43:28.000 --> 00:52:21.000 If you were a 15th century make you probably writing here be 00:54:11.000 --> 00:52:03.000 dragons vigorous, 00:52:03.000 --> 00:46:58.000 we still don't have had detailed bedrock there but sadly the map 00:47:38.000 --> 00:50:49.000 is is being filming. 00:44:30.000 --> 00:55:21.000 From Hobart Tasmania. 00:55:21.000 --> 00:45:25.000 We've been talking with Dr. Roland C Warner he's a researcher with 00:47:25.000 --> 00:46:29.000 Australia's Antarctic climate and ecosystems Cooperative Research 00:46:29.000 --> 00:54:50.000 Centre Dr. Roland. 00:54:50.000 --> 00:53:52.000 Thank you so much for sharing your time with us. 00:53:52.000 --> 00:55:43.000 I really appreciate it. 00:47:44.000 --> 00:42:55.000 There's been a blatant. 00:49:55.000 --> 00:55:37.000 I'm Alex Smith reporting for Radio Eco. 00:44:46.000 --> 00:50:59.000 We are back after the online grow your own food summit with the 00:50:59.000 --> 00:48:33.000 organizer Marjorie while Kraft Marjorie remind us just once again 00:49:33.000 --> 00:49:56.000 where you grow your food in the way you operate your homestead 00:49:56.000 --> 00:49:17.000 experiments. 00:54:47.000 --> 00:48:58.000 No, 00:48:58.000 --> 00:43:53.000 I actually I wasn't Central Texas and my homestead, 00:43:53.000 --> 00:54:53.000 is a resort. 00:56:43.000 --> 00:49:08.000 Center dedicated to finding systems and developing systems for you 00:49:08.000 --> 00:49:21.000 to be able to grow having your own food in a backyard cyberspace 00:58:01.000 --> 00:53:44.000 and less than an hour a day pretty tall order. 00:53:44.000 --> 00:51:35.000 But we're working on it. 00:47:46.000 --> 00:55:26.000 Last week, 00:55:26.000 --> 00:56:29.000 you talked about getting her husband and son on board with aqua 00:45:00.000 --> 00:45:04.000 panics is it necessary to have everybody in your family on board 00:45:04.000 --> 00:56:16.000 with this prep gardening style right from the get-go. 00:51:07.000 --> 00:43:18.000 No, 00:43:18.000 --> 00:49:48.000 in fact, 00:49:48.000 --> 00:54:09.000 I'd say that the vast. 00:55:59.000 --> 00:50:03.000 Majority of of people who will consider themselves peppers. 00:50:03.000 --> 00:48:37.000 They have a reluctant spouse or reluctant children and so they 00:49:37.000 --> 00:48:01.000 just you know go and do what they do anyway with growing your own 00:48:01.000 --> 00:58:51.000 food. 00:58:51.000 --> 00:44:16.000 What I would recommend is just get started and the family actually 00:44:46.000 --> 00:54:07.000 starts to get involved in it, 00:54:07.000 --> 00:50:00.000 one of the best ways to get them on board is when you're 00:50:20.000 --> 00:59:30.000 harvesting. 00:59:30.000 --> 00:58:04.000 That's one of the most delightful times especially with kids I got 00:59:24.000 --> 00:52:47.000 I can give you some of the best vegetables to grow for kids. 00:52:47.000 --> 00:45:20.000 It'll make can all must be out there in your yard treating it like 00:45:20.000 --> 00:46:01.000 a snack bar, 00:46:01.000 --> 00:49:11.000 you know, 00:49:11.000 --> 00:57:34.000 there's lot cherry tomatoes that grows so well in the summertime. 00:57:34.000 --> 00:56:57.000 Those kids will be out there fighting forum and in the cooler 00:56:57.000 --> 00:46:42.000 seasons those sugar snap peas are delicious were strawberries. 00:46:42.000 --> 00:52:22.000 You know, 00:52:22.000 --> 00:53:44.000 if you've got some really tasty food out there. 00:53:44.000 --> 00:59:06.000 Those kids will be out there playing with it and that's one way to 00:59:06.000 --> 00:53:10.000 get them involved with it without it even being proper saying 00:54:40.000 --> 01:00:10.000 grain. 00:48:31.000 --> 00:46:24.000 Tell us about your Aqua panic set up what have you done there. 00:56:44.000 --> 00:45:55.000 You know, 00:45:55.000 --> 00:54:15.000 we, 00:54:15.000 --> 00:45:20.000 we've built one and I believe it's like 30 feet long by about 12 00:47:00.000 --> 00:50:55.000 feet wide and it has 150 gallon fish tank and you know I had 00:52:05.000 --> 00:52:48.000 always initially avoided alcoholics because it's a little bit high 00:52:48.000 --> 00:50:22.000 tech you know it's going to involve motor motors and pumps and and 00:50:52.000 --> 00:46:35.000 and things like that which actually ended up being the attraction 00:46:35.000 --> 01:00:47.000 for my husband and my and that's the reason they like it is, 01:00:47.000 --> 00:59:09.000 it's kinda hard. 00:59:09.000 --> 00:48:02.000 I don't even impressed with those systems. 00:48:02.000 --> 00:55:13.000 They do require energy. 00:56:33.000 --> 00:48:27.000 You know you're gonna be needing some solar power wind power or 00:48:27.000 --> 00:49:50.000 the electrical grid which is another reason we had avoided it 00:52:00.000 --> 00:49:33.000 initially we were initially always developing our systems for 00:50:03.000 --> 00:46:08.000 Ingrid down or open that sustainability type of situation, 00:46:08.000 --> 00:57:29.000 but we ended up going with this, 00:57:29.000 --> 00:55:03.000 I I have to say that it is definitely easier to grow food in the 00:55:03.000 --> 00:58:34.000 Arc upon access tomorrow. 00:58:34.000 --> 00:54:19.000 Our first year of experiments are all that way it does require a 00:54:19.000 --> 00:54:33.000 little bit more watching for example that pump goes out your fish 00:54:33.000 --> 00:45:28.000 only have so long before they're gonna need oxygen and and die so 00:46:38.000 --> 00:50:48.000 it, 00:50:48.000 --> 00:57:30.000 it does need a little bit more monitoring like that, 00:57:30.000 --> 01:01:01.000 but on the other hand, 01:01:01.000 --> 01:00:44.000 it really is easier and part of that here in Central Texas it was 00:52:25.000 --> 00:51:46.000 protected from the wind. 00:51:46.000 --> 00:47:39.000 It was protected from extremes of heat and cold. 00:47:39.000 --> 00:49:22.000 You know the plants just grew better the fish created the waste 00:50:32.000 --> 00:55:14.000 that will said the plants and and it worked really well, 00:55:14.000 --> 00:59:14.000 it's a, 00:59:14.000 --> 00:57:45.000 it's a good system. 00:51:56.000 --> 00:55:39.000 You know it's canvas often closest Amin away but it is tricky and 00:55:39.000 --> 01:01:32.000 technical as you say I I've been avoiding it so far. 01:01:32.000 --> 00:46:26.000 Let's talk about perma culture that's another major contender for 00:47:56.000 --> 00:53:09.000 truly sustainable agriculture have you experimented with the food 00:53:09.000 --> 00:57:10.000 for and by the way, 00:57:10.000 --> 01:01:11.000 what is a food for us. 01:00:52.000 --> 00:50:16.000 Well I love food for us and I have to say this is my particular 00:52:26.000 --> 01:01:16.000 favorite. 01:01:56.000 --> 00:51:58.000 Way to grow food. 00:51:58.000 --> 01:01:12.000 The idea of a food forces you create an area that mimics nature in 01:01:12.000 --> 00:57:26.000 that you plant trees and bushes and vines and honorable way errors 00:57:26.000 --> 00:55:21.000 and every plant in there is edible or medicine or beneficial in 00:56:21.000 --> 01:01:13.000 some way and if you look at the forest. 01:01:13.000 --> 00:59:07.000 A 4th does not need any tending right you go to a pristine forest 01:00:37.000 --> 00:55:08.000 and the trees, 00:55:08.000 --> 01:01:41.000 there they drop their leaves their self marching you know they 01:02:21.000 --> 00:51:34.000 they've learned how to manage the water that comes to them. 00:51:34.000 --> 00:54:47.000 Naturally they don't need to be irrigated and they often you know 00:55:57.000 --> 00:50:20.000 there's still some production of food and animals and wildlife 00:53:00.000 --> 00:48:31.000 within it. 00:48:31.000 --> 00:47:04.000 So what we trying to do is create systems like that and then they 00:47:54.000 --> 00:54:27.000 get back and try to maybe had its with a little bit more benefit 00:55:47.000 --> 00:57:51.000 toward us there more investment in time getting up and started 00:58:41.000 --> 01:02:53.000 because a lot of your fruit and nut trees are not gonna start 00:48:04.000 --> 00:49:16.000 producing for 5 to 10 years. 00:49:16.000 --> 00:51:20.000 But once you get them established they're much much less work than 00:54:00.000 --> 00:51:51.000 annual gardens. 01:00:51.000 --> 00:53:45.000 We all know gardening can help seniors maintain their mental and 00:55:15.000 --> 00:53:29.000 physical health much longer but eventually we may not be able to 00:53:29.000 --> 01:01:50.000 handle the heavy work, 01:01:50.000 --> 00:53:14.000 how can we set up a garden to keep going with very little effort. 01:02:14.000 --> 00:49:35.000 Well, 00:49:35.000 --> 00:57:15.000 that's it. 00:57:15.000 --> 00:49:56.000 Exactly, 00:49:56.000 --> 00:57:19.000 that's why food Forrester such and it's it's a real retirement 00:57:19.000 --> 00:48:20.000 plan, 00:48:20.000 --> 00:51:51.000 unlike Social Security, 00:51:51.000 --> 00:53:33.000 which we never really know if that's come along. 00:53:33.000 --> 00:58:45.000 That's going to be a. 00:58:45.000 --> 00:50:19.000 So a real retirement plan is going to be to play at the food for 00:52:59.000 --> 00:55:12.000 store to plant a small orchard right now. 00:55:12.000 --> 01:00:12.000 Well, 01:00:12.000 --> 00:57:06.000 you've got the strength and energy to have that going and then you 00:57:06.000 --> 00:59:17.000 know in your later years. 00:59:17.000 --> 00:48:01.000 It's a lot easier to just harvest apples and it is to be planting 00:59:41.000 --> 00:56:43.000 doing all the work of the annual garden. 00:50:24.000 --> 00:56:47.000 Let's talk about prepping for past side built 2 big raised their 00:56:47.000 --> 00:56:30.000 heads out of some years lumber but I put a wire lying on the 00:56:30.000 --> 01:03:43.000 bottom to keep both the morals of seem to love by rich garden soil 01:03:43.000 --> 00:49:27.000 . What else can we do to encourage passed to stay out of the 00:49:27.000 --> 00:56:27.000 garden. 00:50:58.000 --> 00:56:08.000 Well, 00:56:08.000 --> 00:53:50.000 one thing is to have a more first. 00:58:10.000 --> 00:49:44.000 They have really good rich soil will help reduce your insect 00:53:34.000 --> 00:54:56.000 problems for more than golfers. 00:54:56.000 --> 01:01:06.000 Personally, 01:01:06.000 --> 00:57:49.000 I have a big problem that we have a lot of sand here and I've been 00:57:49.000 --> 00:48:24.000 experimenting with using castor beans as a mole repellent and of 00:49:14.000 --> 01:00:16.000 and I go forward talent and so far it seems to be working very 01:00:16.000 --> 00:53:41.000 well in fact Castro used to be known as as no go for plant. 00:53:41.000 --> 01:01:04.000 One of the realities of having beautiful food source like that as 01:01:04.000 --> 01:01:07.000 you are going to need to have some fencing or some protection from 01:03:47.000 --> 01:01:00.000 everything else that loves to eat your food like raccoons or 01:03:00.000 --> 00:52:42.000 squirrels or rabbits. 00:52:42.000 --> 01:02:04.000 So a good fence around your garden is just a reality. 01:01:05.000 --> 01:03:35.000 Well, 01:03:35.000 --> 00:59:49.000 our about 7 feet high and then we dangle little pieces of cloth 00:59:49.000 --> 00:48:33.000 and colored foil on the top of that to keep the deer from jumping 00:48:33.000 --> 00:52:43.000 in. 00:52:43.000 --> 00:51:26.000 But for the rest we always planned a little extra for all the 00:51:26.000 --> 00:57:58.000 creatures that are gonna eat out of your garden. 00:57:58.000 --> 00:59:59.000 Whether you like it or not. 00:49:30.000 --> 00:54:45.000 That's a very good practice we rely very heavily on 2 dogs to do a 00:54:45.000 --> 00:51:39.000 large part of the protection from the predators here, 00:51:39.000 --> 01:01:51.000 but one of the Dodgers' even really good at spotting overhead 01:03:41.000 --> 00:57:05.000 aerial hawks and Barking and letting everybody know when the Hawks 00:57:05.000 --> 00:54:59.000 are nearby and I find them invaluable they they work all night 01:00:09.000 --> 00:56:41.000 they mostly sleep all day. 00:56:41.000 --> 00:48:54.000 I don't see them very much because I give them the butchering 00:50:34.000 --> 01:04:06.000 scraps from when we do butchering and then they offered just get 01:04:36.000 --> 00:48:48.000 whatever table scraps. 00:48:48.000 --> 00:59:00.000 We don't need and then they they find what they can you know the 01:00:30.000 --> 00:50:44.000 bigger catcher rabbit here and there, 00:50:44.000 --> 01:04:16.000 so they don't really require a lot of input and they do a lot of 01:04:16.000 --> 00:53:37.000 work. 00:49:58.000 --> 00:55:31.000 When I was doing part time firming in eastern Canada. 00:55:31.000 --> 00:57:34.000 The only chemical are used as wrote known it's made from ground-up 00:58:44.000 --> 01:00:48.000 roots of a South American plant and Robert rodeo used it I had to 01:00:48.000 --> 01:03:31.000 use it for the Colorado potato beetle if you have a big planning a 01:03:31.000 --> 00:55:22.000 potatoes. 00:55:22.000 --> 01:05:23.000 We had the couple of acres, 01:05:23.000 --> 00:53:46.000 there's no way to squash all those bugs by hand. 00:53:46.000 --> 00:50:07.000 What do you think. 01:03:07.000 --> 00:52:38.000 You know, 00:52:38.000 --> 01:00:22.000 that's that's a lot of work to manage a couple of caterer this you 01:00:22.000 --> 00:50:36.000 know we all need to be used as much organic processors as possible 01:01:06.000 --> 00:53:50.000 the classic thing was something like a couple of acres of potatoes 01:03:20.000 --> 00:50:02.000 is to pay the kids. 00:50:02.000 --> 01:03:25.000 It used to be a penny bugs and you'd have them go through the rows 00:57:06.000 --> 01:05:38.000 and then they dump out bugs in the account and then you pay them 01:05:38.000 --> 00:57:42.000 that used to be the he to get rid of the goods but Colorado potato 01:00:02.000 --> 01:04:22.000 beetle. 01:02:53.000 --> 01:04:06.000 Could still work today if it gets a neighborhood kids going well 01:05:16.000 --> 01:00:27.000 last week. 01:00:27.000 --> 01:01:50.000 You talked about not needing refrigeration or freezers that we 01:01:50.000 --> 01:01:53.000 could just munch away through the fresh food season but I have to 01:02:43.000 --> 00:54:24.000 admit, 00:54:24.000 --> 00:59:17.000 there are times when we got so much food more that we could give 00:59:17.000 --> 00:51:41.000 away trade even that we needed to freeze some at least until we 00:51:41.000 --> 00:59:54.000 could catch up to our canning and drying I like adding a 00:59:54.000 --> 00:52:47.000 dehydration they don't depend on the grid staying up. 00:52:47.000 --> 01:04:57.000 What about you. 00:55:28.000 --> 00:50:59.000 I do too. 00:50:59.000 --> 01:04:32.000 As I'm not a huge proponent of that and fermentation also as 01:06:12.000 --> 00:56:36.000 another as another method of food storage, 00:56:36.000 --> 00:57:28.000 by the way at the homegrown food summit. 00:57:28.000 --> 00:59:22.000 We have one presentation by Kendra Lynn who'll be showing you how 00:59:22.000 --> 01:04:06.000 to do water about caning and how to do pressure canning and what I 01:04:56.000 --> 00:59:27.000 love about it is, 00:59:27.000 --> 01:02:17.000 you know, 01:02:17.000 --> 01:04:10.000 as some people have a fear of those big pressure because they are 01:04:50.000 --> 01:05:23.000 these big intimidating things and there's the stories of them 01:05:23.000 --> 01:06:24.000 blowing up and stuff, 01:06:24.000 --> 01:03:55.000 right. 01:03:55.000 --> 00:53:08.000 There's no longer a concern about they've built them there now 00:55:18.000 --> 01:05:58.000 face. 01:05:58.000 --> 01:06:29.000 But when you see Kendra. 01:06:29.000 --> 00:57:43.000 Who is this flight and beautiful woman just handling that 00:57:43.000 --> 01:03:07.000 machinery go I can do it and we also have already Hamann is going 01:03:07.000 --> 00:52:21.000 to be doing a whole thing on how to how to preserve food by 00:52:21.000 --> 00:52:05.000 fermentation as well as the health benefits turns up at that 00:52:45.000 --> 00:52:59.000 fermented foods really help your gut bacteria and help you to 00:54:49.000 --> 01:02:00.000 digest a lot better. 01:02:00.000 --> 00:54:44.000 So some of these techniques are actually I can help increase the 00:54:44.000 --> 01:00:46.000 nutrition content of the food you're eating. 00:54:37.000 --> 01:00:10.000 Yeah warranties real gem we've had on radio shock and I still 01:00:10.000 --> 01:00:43.000 check out her blog once a week and it's important to keep up with 01:01:13.000 --> 01:00:56.000 that one of my goals is to build a solar dryer. 01:00:56.000 --> 00:55:47.000 Do you have one. 01:04:07.000 --> 00:51:42.000 We do I used a model based on its side believe it's Appalachian 00:52:42.000 --> 00:51:56.000 State University created this model there's there's lots of other 00:51:56.000 --> 01:05:09.000 ones out there and it has worked really really well now we do tend 01:05:09.000 --> 00:59:11.000 to be a bit drier here in Texas, 00:59:11.000 --> 01:02:24.000 but I found that that model even worked well during the summer's 00:53:25.000 --> 00:54:39.000 the times when we had a wet period that is definitely a technique 00:54:39.000 --> 00:53:52.000 for the poor on preserving food that's a very useful. 01:00:22.000 --> 01:01:15.000 Farmers around here used to throw their pitches up on a Hot Tin 01:01:15.000 --> 00:52:19.000 Roof on one of their shepherds and solar dried them that way and 00:52:19.000 --> 01:06:49.000 it did work. 01:06:49.000 --> 00:51:53.000 Now let me ask you do you let chickens interior garden. 01:02:43.000 --> 01:03:35.000 On rare occasions I do. 00:53:56.000 --> 00:59:29.000 One example was one time my sweet potato showed up with these 01:02:39.000 --> 01:00:42.000 strange looking little beetles that had a shiny. 01:00:42.000 --> 00:53:05.000 It was almost what by chrome shell. 00:53:05.000 --> 00:54:16.000 I have no idea what they were, 00:54:16.000 --> 00:54:38.000 they were and alien Beatles. 00:54:38.000 --> 01:00:28.000 You know, 01:00:28.000 --> 01:08:10.000 normally when I see an insect outbreak like that I think 00:53:21.000 --> 00:59:23.000 immediately that my plants are stressed and they need some 01:01:13.000 --> 00:56:16.000 nutrients you know some some some sort of nutrient thing and I'll 00:56:56.000 --> 00:53:27.000 try to get them, 00:53:27.000 --> 00:58:17.000 you know, 00:58:17.000 --> 01:00:50.000 liquid seaweed or some homemade compost or something. 01:00:50.000 --> 01:06:42.000 But in the short term immediate what I do that. 01:06:42.000 --> 01:08:56.000 The chickens in there and chickens are naturally insect they love 00:59:27.000 --> 01:09:00.000 insects first but I watch them innocent of their gun getting all 00:52:51.000 --> 00:57:12.000 the insects then you wanna kick'em 00:57:12.000 --> 00:58:14.000 out of the garden because then they'll start scratching up the 00:58:14.000 --> 00:59:55.000 rest of your pricing ads. 01:02:45.000 --> 00:55:16.000 I do, 00:55:16.000 --> 00:53:00.000 they will scratch about so aren't that after all your YouTube 00:54:50.000 --> 00:52:54.000 videos your best selling grow your own groceries course that you 00:53:54.000 --> 00:52:46.000 hear from gardeners all over the world. 00:52:46.000 --> 00:58:16.000 Do you. 01:04:46.000 --> 01:04:30.000 We don't know and we have a very active network of people they 01:06:10.000 --> 00:57:11.000 contribute. 00:58:01.000 --> 00:59:33.000 Things that they're discovering in there that that they're 01:00:13.000 --> 00:58:36.000 learning and we're very excited about that and want to develop 01:00:16.000 --> 01:05:00.000 that further well actually creating also a network of places just 01:05:50.000 --> 00:59:03.000 like our place where we're doing research on different ways to 00:59:03.000 --> 01:03:46.000 grow food other places that are doing that are starting to become 01:04:46.000 --> 00:55:40.000 network together and sharing results and making it available to 00:55:40.000 --> 01:06:24.000 them to everybody really I feel Alex this solution is gonna come 01:07:14.000 --> 00:54:27.000 from you and for me and from, 00:54:27.000 --> 01:06:10.000 you know I mean anybody even hardly an example Leslie Leslie 01:06:10.000 --> 01:02:44.000 Parsons works still works full time and she only has a small 01:02:44.000 --> 01:00:55.000 garden. 01:00:55.000 --> 01:00:38.000 She's very passionate about Squire should about 2 hundred square 01:00:38.000 --> 00:55:21.000 foot garden and so she's been doing all these experiments were 00:57:31.000 --> 00:57:44.000 squash she's come up with a couple of varieties that are resistant 00:59:44.000 --> 00:53:58.000 of the squash vine borer which is a horrible problem for people 00:59:08.000 --> 01:06:11.000 and squash is such a good important calorie crop. 01:06:11.000 --> 01:05:25.000 So you know she's only doing this part time in a 200ft² garden. 01:05:25.000 --> 01:00:37.000 She has done really, 01:00:37.000 --> 01:10:20.000 really valuable research on of a crop that's resistant to the 01:10:20.000 --> 01:08:23.000 squash vine borer which is hugely important to the rest of us 00:58:04.000 --> 01:08:27.000 she's publishing that work on our our blog and making it available 01:08:27.000 --> 01:03:10.000 to other people and creating a whole discussion about it now. 01:03:10.000 --> 00:55:33.000 Other people are trying it and duplicating our work and getting 00:57:13.000 --> 01:06:54.000 feedback to her. 01:06:54.000 --> 01:05:06.000 This is how it's gonna happen. 01:05:06.000 --> 01:04:08.000 Monsanto is not here to help us, 01:04:08.000 --> 01:01:50.000 the USDA is not here to help us. 01:01:50.000 --> 00:54:32.000 Unfortunately our own government. 00:54:32.000 --> 01:00:13.000 While it does try. 01:00:13.000 --> 01:04:06.000 It's actually still we we controlled by the big companies. 01:04:06.000 --> 01:03:59.000 This is gonna be a problem that can only be solved by you and me 01:03:59.000 --> 01:04:42.000 and by individuals and neighbors working together and that's the 01:04:42.000 --> 00:55:47.000 whole reason for for what I do is working at this grassroots level 01:01:27.000 --> 00:55:51.000 of coming up with real solutions for you to create your own food 00:55:51.000 --> 01:05:41.000 and medicine. 00:58:02.000 --> 01:08:25.000 What would you say the number one concern people razor or the 00:54:36.000 --> 00:55:10.000 block that prevents them in their own minds from getting going on 00:55:50.000 --> 01:03:31.000 growing their own groceries. 00:58:22.000 --> 01:05:55.000 I think most people think that it's gonna be a lot of work and 01:05:55.000 --> 01:00:08.000 they're not going to get much production out of it. 01:00:08.000 --> 00:58:22.000 It's also were also such an instant gratification such high if it 01:05:52.000 --> 01:07:06.000 take my son can with barbed work on a guitar and look at the Xbox 01:07:06.000 --> 00:56:28.000 and like in 5 minutes. 00:56:28.000 --> 01:00:02.000 He's a rock star okay with with that then and I just doesn't have 01:00:02.000 --> 01:10:05.000 . And in the garden things take 2 to 3 months to mature. 01:10:05.000 --> 00:55:11.000 So it's adjusting to life style that's actually more human scale 01:00:11.000 --> 00:56:13.000 is a pretty big block. 00:56:13.000 --> 00:56:14.000 I would say though, 00:56:14.000 --> 00:57:07.000 that's probably one of the things you're most Hungarian for in 00:57:07.000 --> 01:07:37.000 your life. 00:59:48.000 --> 00:57:01.000 You know it's strange a start following your heart into something 00:57:01.000 --> 01:01:34.000 as you did with personal food growing and I could also call that 01:02:14.000 --> 01:09:25.000 personal liberty, 01:09:25.000 --> 00:55:29.000 then you teacher communicate you connect a normal suddenly you 00:56:59.000 --> 01:00:41.000 Marjorie while Kraft have become kind of a, 01:00:41.000 --> 00:55:43.000 a one-woman movement on your own. 00:55:43.000 --> 01:08:33.000 Isn't it strange. 01:02:24.000 --> 01:06:45.000 It is it, 01:06:45.000 --> 01:11:48.000 it's only a review as about this week. 01:11:48.000 --> 01:11:11.000 15 years ago our view to told me what I will girl what I'd be 00:55:42.000 --> 01:11:54.000 doing Iacocca where have no no no, 01:11:54.000 --> 01:10:27.000 or you know you know life is amazing adventures a. 01:05:20.000 --> 01:09:20.000 Well, 01:09:20.000 --> 00:59:14.000 I want to take your DVD course what's in it and why does it cost. 01:07:24.000 --> 01:11:58.000 Well know said it's it's 2 DVDs and then it includes a CD-ROM 00:56:19.000 --> 01:03:02.000 that's a whole library of documents to support it and I, 01:03:02.000 --> 01:05:42.000 one, 01:05:42.000 --> 01:08:25.000 it's basically like me taken you by the hand and taking you 01:09:45.000 --> 01:03:40.000 through my homestead here and showing you how I grow food and I'm 01:04:30.000 --> 01:07:50.000 like, 01:07:50.000 --> 01:00:21.000 you know. 01:00:21.000 --> 01:02:44.000 Here's the water tanks were set up to catch rainwater and oh by 01:02:44.000 --> 01:10:26.000 the way we overbuilt it it was a huge mistake. 01:10:26.000 --> 01:01:50.000 Please don't make it this big and then he a place where we started 01:02:50.000 --> 01:08:52.000 a garden and here's another place we started a garden and these 01:08:52.000 --> 01:04:35.000 are the reasons why those gardens totally sucked in failed. 01:04:35.000 --> 00:57:29.000 But here's where we put our other garden and this is working, 00:57:29.000 --> 01:03:11.000 and here's the gardening method that years because this is the 01:03:11.000 --> 01:06:03.000 most efficient one and I've tried all these other ones, 01:06:03.000 --> 01:10:16.000 but this is the one that I really like and here's where I keep the 01:10:16.000 --> 01:08:59.000 rabbits and I put them right here next to the garden because 01:08:59.000 --> 01:09:12.000 outweigh their fertility can help me and it's real simple and easy 01:09:12.000 --> 01:02:43.000 to do this. 01:02:43.000 --> 01:03:14.000 This way, 01:03:14.000 --> 01:10:26.000 and here's my flock of chickens and here's the reason I have'em 01:10:26.000 --> 00:58:39.000 like this and here's the dogs and oh, 00:58:39.000 --> 01:00:10.000 look at this is the size. 01:01:50.000 --> 01:08:04.000 And you really need to keep this out of the garden right and 01:09:14.000 --> 01:04:17.000 here's my orchard and all the experiments with the trees. 01:04:17.000 --> 01:11:37.000 We've done. 01:11:37.000 --> 01:04:10.000 And this is why these died in of lived in, 01:04:10.000 --> 01:06:33.000 you know I just take you and show you everything that I go through 01:08:43.000 --> 01:11:16.000 ND and in even the maturing process viewers how you, 01:11:16.000 --> 01:07:20.000 but your rabbit and here's how you butchered chicken India is what 01:08:10.000 --> 01:10:52.000 you do with all the parts of those animals. 01:10:52.000 --> 01:00:33.000 That's it. 01:00:33.000 --> 00:58:34.000 It's really, 00:58:34.000 --> 01:07:17.000 you know to 2 videos that they chose you all those components and 01:07:17.000 --> 01:10:59.000 then again that library the resource library. 01:10:59.000 --> 01:12:01.000 So you know I talk about a rainwater collection system. 01:12:01.000 --> 01:04:44.000 We have a whole rainwater collection system e-book in their own 01:05:14.000 --> 01:03:26.000 how to how to build one. 01:03:26.000 --> 00:59:58.000 I talk about you know butchering a rabbit. 00:59:58.000 --> 01:01:32.000 And then we have a whole article on how to channel rabbit hides 01:02:02.000 --> 01:01:35.000 that we'll be able to use those effectively or you know we've got 01:02:15.000 --> 01:05:20.000 5 different PDF different ways to compost fertility so important. 01:05:20.000 --> 00:58:22.000 So that's what it's, 00:58:22.000 --> 01:10:22.000 it's all about, 01:10:22.000 --> 01:09:55.000 it's a grow your own groceries.com and its$37 01:10:55.000 --> 01:07:19.000 for the 4th but I tell you what I'd really recommend you go to the 01:07:19.000 --> 01:07:23.000 home-grown food summit and watch that presentation I have on how 01:07:23.000 --> 01:10:06.000 to grow half year on food in your backyard in less than an hour a 01:10:06.000 --> 01:07:27.000 day. 01:07:27.000 --> 01:00:51.000 Take a look at that and say you know that'll really inspire you do 01:01:31.000 --> 01:01:32.000 that you could do this, 01:01:32.000 --> 01:03:25.000 you can get their systems up and running in about 6 months and be 01:05:25.000 --> 01:04:39.000 producing half your own food in less than an hour a day by next 01:04:39.000 --> 01:08:09.000 year. 01:02:00.000 --> 01:12:53.000 I'd love to do it now Marjorie what will your next project be or 01:00:44.000 --> 01:04:05.000 is it too soon to tell. 01:14:35.000 --> 01:09:16.000 Well, 01:09:16.000 --> 01:11:39.000 we've got a lot of irons in the fire and after this summit, 01:11:39.000 --> 01:11:42.000 we're going to look at what will have the most impact, 01:11:42.000 --> 01:02:37.000 to be able to have more home-grown food on every table, 01:02:37.000 --> 01:02:50.000 we're looking at doing some stuff in partnership with Mike Adams 01:02:50.000 --> 01:09:33.000 of the natural news and possibly working on some developing some 01:11:13.000 --> 01:08:56.000 programs to get local food into schools. 01:08:56.000 --> 01:10:37.000 We've got a whole, 01:10:37.000 --> 01:07:50.000 you know I don't also developing that network of research 01:12:40.000 --> 01:05:12.000 organizations. 01:05:12.000 --> 01:04:23.000 There's a lot on the table, 01:04:23.000 --> 01:08:54.000 we haven't yet figured that out. 00:58:45.000 --> 01:07:47.000 We've been talking with Marjorie while craft of grow your own 01:07:47.000 --> 01:10:31.000 groceries.com her DVD Guide to Growing in your own backyard is a 00:59:02.000 --> 01:07:52.000 bestseller, 01:07:52.000 --> 01:14:25.000 her free YouTube videos and growing your own food a really popular 01:02:36.000 --> 01:00:09.000 and Marjorie recently organized the biggest online summit 01:02:39.000 --> 01:14:12.000 dedicated to growing homegrown food I'll be putting links to all 01:14:12.000 --> 01:08:36.000 of that in my shell blog equal shot.info Marjorie. 01:08:36.000 --> 01:05:08.000 Thank you so much for helping all of us. 01:03:49.000 --> 01:09:29.000 Alex. 01:09:29.000 --> 01:09:50.000 Thanks for having they are. 01:09:50.000 --> 01:10:21.000 I really appreciate it. 01:00:52.000 --> 01:14:14.000 I'm Alex Smith reporting for Radio Eco Shah. 01:11:18.000 --> 01:13:01.000 I'm dropping my own garden right now with raised beds, 01:13:01.000 --> 01:12:25.000 a better compost bin nets for the raspberries and 80 inches of 01:12:25.000 --> 01:00:57.000 mulch all around. 01:00:57.000 --> 01:05:11.000 Find all our past programs as MP3 downloads at our website eco 01:05:11.000 --> 01:09:12.000 shark.org. 01:09:12.000 --> 00:59:36.000 Don't forget to follow up on links for this week show in my weekly 00:59:36.000 --> 01:09:50.000 blog published Wednesday that it shock.info or listen to the sound 01:09:50.000 --> 01:02:45.000 card page had sown cloud.com/Radio Eco shock. 01:02:45.000 --> 01:05:26.000 I'm a locksmith. 01:05:26.000 --> 01:12:59.000 Thank you for listening and I hope we will get together again next