WEBVTT 00:10:15.000 --> 00:10:57.000 Our modern life is built on energy 00:04:40.000 --> 00:10:54.000 we use it to heat to cool to light up our cities 00:14:56.000 --> 00:01:01.000 you can powers are cars and flies are planes. 00:15:42.000 --> 00:04:08.000 It fills our stores and keeps us switched on and plugged-in in the 00:04:38.000 --> 00:08:20.000 average home in America in 1980. 00:08:20.000 --> 00:05:03.000 There were 3 electronic devices. 00:05:03.000 --> 00:01:14.000 Today, 00:01:14.000 --> 00:01:45.000 there are over 25. 00:11:57.000 --> 00:05:40.000 But most of that energy comes from burning coal, 00:05:40.000 --> 00:08:21.000 oil and gas. 00:16:02.000 --> 00:16:45.000 I don't think people understand when they flipped the light switch 00:16:45.000 --> 00:01:07.000 were that energy comes from. 00:06:28.000 --> 00:02:30.000 Is there a better way. 00:02:30.000 --> 00:10:42.000 We need a miracle in energy technology. 00:13:53.000 --> 00:11:34.000 Around the globe. 00:11:34.000 --> 00:08:26.000 There was a race on to find a solution. 00:16:38.000 --> 00:12:02.000 Tapping the power of the sun this tablespoon of fuel is going to 00:13:22.000 --> 00:07:03.000 change the world. 00:07:36.000 --> 00:12:39.000 We need to innovate and we need to innovate faster and in the wake 00:12:39.000 --> 00:09:32.000 of Japan's tsunami re-examining nuclear. 00:12:22.000 --> 00:07:14.000 Nuclear keeps looking pretty good, 00:07:14.000 --> 00:04:26.000 even with the Fukushima might. 00:03:07.000 --> 00:08:39.000 Kent technology help us fuel our future. 00:15:40.000 --> 00:09:43.000 The current problem is actually easily solved. 00:15:24.000 --> 00:17:45.000 And are we ready for it. 00:04:17.000 --> 00:14:00.000 Everybody wants it somewhere other than their own backyard. 00:14:00.000 --> 00:11:41.000 Guess what. 00:11:41.000 --> 00:03:12.000 If you don't, 00:03:12.000 --> 00:15:22.000 solve the problem, 00:15:22.000 --> 00:12:04.000 your backyard isn't going look the same anyway. 00:14:09.000 --> 00:16:12.000 Most programs about climate change start on a noted. 00:10:54.000 --> 00:14:55.000 With images like this. 00:07:44.000 --> 00:07:16.000 But this is a program about fixing. 00:07:39.000 --> 00:09:12.000 So it starts in a place where it is hard to imagine that there are 00:10:52.000 --> 00:16:54.000 any problems at all. 00:16:54.000 --> 00:07:27.000 Sir Richard Branson's private Caribbean island. 00:16:49.000 --> 00:12:01.000 And I first saw it this island. 00:12:01.000 --> 00:05:26.000 I've never seen a more beautiful jewel in my life and completely 00:05:26.000 --> 00:16:56.000 fell in love with it. 00:12:09.000 --> 00:10:32.000 The challenge was to make sure that you actually enhance the 00:12:42.000 --> 00:12:15.000 beauty rather than destroy it. 00:12:15.000 --> 00:07:46.000 Branson. 00:07:46.000 --> 00:04:30.000 The airline mogul has even upgraded his little Caribbean jewel 00:05:00.000 --> 00:04:02.000 with some pretty spectacular flyers. 00:14:23.000 --> 00:12:54.000 About a hundred years ago. 00:12:54.000 --> 00:07:58.000 I think the last from India got eaten so with embarked on a 00:07:58.000 --> 00:09:21.000 program of reintroducing them to the islands. 00:09:21.000 --> 00:19:04.000 The thing I think the island is a more perfect island today than 00:19:04.000 --> 00:15:48.000 it was before we arrived and I think you know that's what we've 00:16:18.000 --> 00:07:10.000 got to try to do with the world. 00:18:00.000 --> 00:08:05.000 But fixing the world is an easy even for billionaires in fact 00:13:35.000 --> 00:06:49.000 Branson's love of nature has created a big personal dilemma. 00:07:45.000 --> 00:16:38.000 He's become super rich well bringing stylish air travel to the 00:16:38.000 --> 00:07:59.000 masses. 00:18:01.000 --> 00:14:26.000 And yet he is also worried about climate change. 00:14:26.000 --> 00:05:30.000 Those 2 passions are like the oil it takes to run his planes. 00:14:20.000 --> 00:08:02.000 And water. 00:08:02.000 --> 00:09:03.000 They do not mix. 00:19:35.000 --> 00:08:29.000 Branson's dilemma while a bit more high-flying than most. 00:14:00.000 --> 00:07:14.000 Is ultimately the same that we all face. 00:07:14.000 --> 00:09:58.000 How can we get the energy our world needs in a way that want 00:11:18.000 --> 00:16:58.000 threatening. 00:12:20.000 --> 00:16:42.000 Climate change is one of the greatest threats relevant. 00:10:23.000 --> 00:08:06.000 Branson solution is to use his entrepreneurial must. 00:15:26.000 --> 00:04:22.000 And profits to attack climate change an idea inspired by another 00:04:22.000 --> 00:12:34.000 famous brand Winston Churchill. 00:20:35.000 --> 00:20:09.000 The threat of carbon could be worse than you know who won World 00:20:09.000 --> 00:20:31.000 War II pretty careless if that's the case. 00:20:31.000 --> 00:17:47.000 Churchill would get a warm set up he would rally industry he'd 00:19:17.000 --> 00:13:30.000 rally the troops and try to be carbon the enemy. 00:11:12.000 --> 00:17:03.000 And so we set up the top. 00:10:39.000 --> 00:15:40.000 Branson is not alone. 00:09:02.000 --> 00:19:14.000 Right now in laboratories around the globe. 00:19:14.000 --> 00:19:46.000 There is a race on to find a solution. 00:19:10.000 --> 00:07:22.000 The outcome is uncertain. 00:21:15.000 --> 00:17:06.000 But ultimately, 00:17:06.000 --> 00:17:50.000 the question is can technology save us from climate change. 00:15:37.000 --> 00:21:20.000 There is no better place to start than deep in this West Virginia 00:05:41.000 --> 00:14:21.000 coal mine. 00:14:56.000 --> 00:21:10.000 Which generates half of all US electricity tells a story millions 00:21:10.000 --> 00:14:21.000 of years old. 00:10:16.000 --> 00:07:20.000 35 million years ago Earth's atmosphere was awash in carbon 00:07:20.000 --> 00:17:50.000 dioxide. 00:06:13.000 --> 00:19:24.000 But this is what look like. 00:16:55.000 --> 00:20:05.000 This. 00:07:36.000 --> 00:16:27.000 Alligators and South Dakota. 00:13:18.000 --> 00:08:20.000 Palm trees in the Rocky Mountains. 00:06:01.000 --> 00:21:04.000 And instead of being covered by ice they were forecasts in an art 00:21:04.000 --> 00:12:31.000 . Over millions of years those trees pulled the carbon out of the 00:12:31.000 --> 00:18:04.000 air to grow and when they died. 00:18:04.000 --> 00:09:17.000 Much of that carbon got buried underground. 00:18:48.000 --> 00:06:42.000 The same process created the coal we see here in West Virginia. 00:15:23.000 --> 00:20:15.000 Cole is up to 86% car. 00:08:46.000 --> 00:11:16.000 Yes. 00:14:17.000 --> 00:07:52.000 A gallon of gasoline and other fossil fuel represents 100 tons of 00:09:32.000 --> 00:07:53.000 ancient plans. 00:09:14.000 --> 00:09:35.000 That's why gas, 00:09:35.000 --> 00:16:57.000 coal and oil are called fossil fuels. 00:10:43.000 --> 00:21:16.000 With the advent of the industrial age that carbon rich coal and 00:22:26.000 --> 00:11:09.000 oil was dug up and burned as fuel. 00:20:23.000 --> 00:13:55.000 Burning anything releases car. 00:18:37.000 --> 00:14:10.000 But carbon dense coal and oil release a lot. 00:15:35.000 --> 00:12:09.000 That carbon long-buried combines with oxygen in the Earth's 00:12:09.000 --> 00:11:11.000 atmosphere and acts like a blank. 00:16:55.000 --> 00:08:19.000 This NASA map shows global temperatures rising over the last 00:08:19.000 --> 00:12:39.000 center. 00:09:14.000 --> 00:18:57.000 No one is sure precisely how much the temperature will rise or how 00:20:27.000 --> 00:09:58.000 quickly. 00:08:20.000 --> 00:16:33.000 But the atmosphere carbon predicted for the end of this century is 00:16:33.000 --> 00:10:46.000 approaching the level from 35 million years ago. 00:17:37.000 --> 00:07:40.000 When those alligators swam in South Dakota. 00:21:07.000 --> 00:13:10.000 The task ahead is to cut carbon emissions. 00:13:31.000 --> 00:13:44.000 And that is exactly what Steven put cholera has figured out how to 00:13:44.000 --> 00:18:54.000 do. 00:14:06.000 --> 00:18:29.000 The caller is an environmental biologist at Princeton University 00:17:00.000 --> 00:20:31.000 and a serious would worker. 00:16:25.000 --> 00:24:28.000 He has used both skills to demonstrate how we can solve our carbon 00:24:28.000 --> 00:16:52.000 problem he calls it the wedge theory. 00:11:23.000 --> 00:16:26.000 It's easy to say all the energy problem is so big that we can't 00:17:06.000 --> 00:14:09.000 possibly build enough wind turbines to solve it. 00:14:09.000 --> 00:11:42.000 We can't possibly do enough conservation to solve it. 00:10:04.000 --> 00:24:47.000 So you break the problem into pieces and say, 00:24:47.000 --> 00:16:21.000 what are the technological options across the board, 00:16:21.000 --> 00:09:33.000 that we have to throw at it. 00:08:45.000 --> 00:23:07.000 But says the problem can be easily visualize. 00:15:38.000 --> 00:16:21.000 This is the amount of emissions that humanity puts out annually 00:18:51.000 --> 00:08:34.000 its carbon emissions greenhouse gas emissions, 00:08:34.000 --> 00:21:15.000 and this is, 00:21:15.000 --> 00:16:09.000 and what happened for the first 10,000 years since the end of the 00:16:09.000 --> 00:09:13.000 last Ice Age people admitted almost nothing the Liberal cleared 00:11:43.000 --> 00:14:15.000 albeit associated with funding. 00:14:15.000 --> 00:22:48.000 But then the industrial revolution happened an emissions started 00:09:39.000 --> 00:15:41.000 increase because of the burning of coal and oil. 00:15:41.000 --> 00:12:33.000 And then in the natural gas, 00:12:33.000 --> 00:18:05.000 but it increased and increased increased and they're still 00:18:05.000 --> 00:24:15.000 increase. 00:17:38.000 --> 00:13:50.000 So instead of allowing them to climb. 00:13:50.000 --> 00:19:25.000 We've got a freeze them to this triangle here is the size of the 00:19:25.000 --> 00:11:36.000 problem, 00:11:36.000 --> 00:10:00.000 it's the gap between what we were gonna do and what we must do. 00:19:20.000 --> 00:22:11.000 Risks. 00:23:11.000 --> 00:22:34.000 The caller says this triangle represents the challenge. 00:23:14.000 --> 00:09:46.000 Asked to do. 00:10:26.000 --> 00:13:29.000 It is the carbon emissions that we must somehow keep out of the 00:13:29.000 --> 00:22:29.000 atmosphere. 00:23:25.000 --> 00:21:10.000 To help make this easier to understand and more fun Ocala decided 00:21:30.000 --> 00:12:44.000 to turn it into a game literally one, 00:12:44.000 --> 00:15:14.000 Chris. 00:22:24.000 --> 00:13:25.000 At home, 00:13:25.000 --> 00:11:58.000 and my kids were fight an inside-outside and I was like that's 00:11:58.000 --> 00:18:29.000 gonna go outside to build something. 00:19:02.000 --> 00:23:25.000 He used his working skills to build the game. 00:23:17.000 --> 00:23:38.000 Here's how it works. 00:12:40.000 --> 00:12:14.000 He turn the area that is the problem into a triangle. 00:12:14.000 --> 00:19:47.000 This represents the total amount of carbon day we must avoid 00:20:47.000 --> 00:21:21.000 putting into the atmosphere in the next 50 years. 00:21:21.000 --> 00:19:46.000 The ideal target is controversial but Karla calculated it was 7 00:20:56.000 --> 00:23:09.000 billion tons per year. 00:23:09.000 --> 00:21:12.000 He divided that up into one billion ton section. 00:14:07.000 --> 00:21:00.000 He made wooden wedges that represent technologies that could fill 00:21:30.000 --> 00:19:51.000 in their Tri hang. 00:14:22.000 --> 00:18:54.000 So it is there own technology big enough to do a 7th of the 00:18:54.000 --> 00:23:36.000 problem and he has he was high on the whole, 00:23:36.000 --> 00:19:50.000 there were 15 already in the marketplace at an industrial scale. 00:19:50.000 --> 00:11:23.000 These are not pie in the sky things easy things you can go in 00:11:23.000 --> 00:19:24.000 visit on a field trip. 00:15:26.000 --> 00:13:10.000 Most of the 15 wedges can be grouped into 4 simple categories. 00:24:31.000 --> 00:17:32.000 This green, 00:17:32.000 --> 00:24:45.000 which represents the easiest and cheapest efficiency. 00:13:27.000 --> 00:25:00.000 Like increasing the fuel mileage of all cars from 30 to 60 miles 00:25:00.000 --> 00:16:21.000 per gallon. 00:21:33.000 --> 00:23:46.000 This yellow which represents tripling the number of nuclear power 00:24:56.000 --> 00:12:18.000 plants over 50 years. 00:25:29.000 --> 00:16:03.000 This blue which represents cleaning coal plants by burying their 00:16:03.000 --> 00:12:54.000 carbon emissions. 00:13:56.000 --> 00:26:06.000 And this red, 00:26:06.000 --> 00:20:41.000 which represents the sun harnessing its power with solar panels or 00:20:41.000 --> 00:16:32.000 wind turbines. 00:17:16.000 --> 00:13:30.000 This thing has 2 different wages per in his Princeton colleague 00:14:10.000 --> 00:18:23.000 Robert cycle though did the complicated analysis behind this 00:19:13.000 --> 00:22:55.000 simple game to prove that it could be done. 00:14:28.000 --> 00:26:51.000 The way you play the game to feel the triangle with 7 of the 15 00:12:12.000 --> 00:14:36.000 available technological wedges and create your own solution to the 00:14:36.000 --> 00:26:56.000 climate crisis. 00:21:48.000 --> 00:22:00.000 Some people might use more solar energy. 00:26:40.000 --> 00:21:51.000 Good evening. 00:24:41.000 --> 00:19:54.000 Others more efficiency savings. 00:19:54.000 --> 00:25:45.000 I'm got nominate a wedge. 00:12:38.000 --> 00:25:40.000 Efficient and I think efficiency one wedges modest and self 00:16:01.000 --> 00:22:23.000 important more of these efficiency wedges. 00:26:54.000 --> 00:25:08.000 The point is that there are many possible solutions. 00:25:08.000 --> 00:20:00.000 It all depends on our choices. 00:27:06.000 --> 00:26:09.000 Drawing the blueprint for a solution to this problem is deeply 00:26:09.000 --> 00:27:34.000 challenging to help Nova has assembled the panel of experts. 00:27:34.000 --> 00:15:38.000 Leaders from business academia and government, 00:15:38.000 --> 00:19:10.000 who are all trying to find solutions. 00:25:50.000 --> 00:15:42.000 And technology said this. 00:15:42.000 --> 00:13:44.000 Yes you can. 00:13:44.000 --> 00:14:27.000 And it should it must and that's to say, 00:14:27.000 --> 00:25:17.000 it must save. 00:13:19.000 --> 00:26:42.000 Technology save us from climate change absolutely very convinced 00:27:42.000 --> 00:18:56.000 that can and in fact beyond that what I would says it's an 00:18:56.000 --> 00:15:11.000 incredible opportunity for us to create more kinds of new things, 00:15:11.000 --> 00:22:41.000 no. 00:23:21.000 --> 00:29:14.000 We can do things that we can't dream alive today. 00:29:14.000 --> 00:16:20.000 We can envision what it will look like a hundred years from now. 00:16:20.000 --> 00:23:13.000 I think the carbon problem is actually easily solved: 00:23:13.000 --> 00:14:36.000 what's hard is that we need to make a lot of change. 00:14:36.000 --> 00:19:31.000 You know we more last halved coming forward at this to recreate a 00:19:31.000 --> 00:19:33.000 green version of the revolution. 00:19:33.000 --> 00:16:45.000 It's taken us under 50 years. 00:18:25.000 --> 00:24:26.000 There are people right now. 00:24:26.000 --> 00:18:10.000 If you go to work every day and they can say to themselves. 00:18:10.000 --> 00:18:01.000 You know if I got lucky. 00:18:01.000 --> 00:22:57.000 Today I will arguably saved the world and become not just the 00:22:57.000 --> 00:19:19.000 richest person in it. 00:19:19.000 --> 00:19:31.000 But the richest person ever. 00:18:02.000 --> 00:21:25.000 Climate change solutions will create more wealth than any other 00:21:25.000 --> 00:15:07.000 sector over the next decade. 00:22:47.000 --> 00:24:42.000 Richard Branson knows the power of profits to spark innovation. 00:24:42.000 --> 00:16:54.000 So he has started a$25 00:16:54.000 --> 00:29:07.000 million contest for the best idea to reduce carbon levels. 00:28:48.000 --> 00:16:44.000 Is there some way that some of that extra CO2 might be scavenge 00:17:25.000 --> 00:15:47.000 officially out of the atmosphere. 00:19:03.000 --> 00:19:06.000 One of the people working to do that and hoping that Branson might 00:19:06.000 --> 00:19:20.000 make his Christmas come a bit early is Klaus if physicist at 00:19:20.000 --> 00:19:51.000 Columbia University. 00:25:13.000 --> 00:14:58.000 Wagner's idea is brilliantly simple why not develop technologies 00:16:38.000 --> 00:27:21.000 that work just like trees removing the carbon pollution that our 00:27:21.000 --> 00:21:44.000 cars and Branson's planes make. 00:16:15.000 --> 00:21:19.000 Everybody knows it can be done every submarine has to pull that 00:23:39.000 --> 00:18:11.000 CO2 out of the people. 00:18:11.000 --> 00:14:22.000 Preterm side. 00:26:53.000 --> 00:21:26.000 Carbon capture is not a new idea. 00:21:26.000 --> 00:26:31.000 The navy has relied on it for decades deep underwater submarine 00:29:41.000 --> 00:19:54.000 exhale carbon dioxide with every breath. 00:28:57.000 --> 00:22:52.000 In such a small enclosed space that CO2 builds up and becomes 00:25:32.000 --> 00:31:12.000 talks. 00:18:25.000 --> 00:26:58.000 In every submarine CO2 must be removed from the air for the 00:26:58.000 --> 00:30:09.000 sailors to survive. 00:28:21.000 --> 00:20:05.000 That's done with some pretty basic chemistry using a machine 00:20:05.000 --> 00:30:15.000 called a scrap. 00:16:09.000 --> 00:23:32.000 The carbon in a carbon dioxide molecule has a slightly positive 00:25:02.000 --> 00:17:33.000 charge. 00:24:36.000 --> 00:16:00.000 If the chemical filter inside the scrub has a special negative 00:16:00.000 --> 00:23:23.000 charge the carbon dioxide will be drawn would like a magnet. 00:19:09.000 --> 00:19:13.000 In his lab Wagner found a resin based material that acts just like 00:20:13.000 --> 00:27:37.000 this submarine scrub attracting carbon dioxide to stick to it. 00:25:30.000 --> 00:26:13.000 The next challenge was how to capture carbon naturally in the 00:26:13.000 --> 00:25:25.000 breeze without using energy. 00:27:35.000 --> 00:31:35.000 Well, 00:31:35.000 --> 00:25:06.000 you know, 00:25:06.000 --> 00:16:17.000 really. 00:16:57.000 --> 00:28:51.000 Wagner experimented with various shapes from Richard flat panels. 00:29:41.000 --> 00:18:23.000 GE. 00:19:43.000 --> 00:31:54.000 2 material draped like a flag. 00:26:56.000 --> 00:30:19.000 He discovered that cutting the material into very thin strips. 00:17:50.000 --> 00:31:32.000 And putting them along a liar would be most effective 00:25:14.000 --> 00:23:19.000 the result a man made carbon collector highly engineered at one of 00:23:19.000 --> 00:29:13.000 America's top universities that looks in the end, 00:29:13.000 --> 00:22:05.000 like a branch of a Christmas tree. 00:22:58.000 --> 00:20:52.000 These 2 branches look very much alike because they finally trying 00:20:52.000 --> 00:21:46.000 to do more or less the same thing but these materials to know 00:22:26.000 --> 00:25:30.000 about a thousand times better at collecting CO2 from the air, 00:25:30.000 --> 00:27:41.000 then a natural tree. 00:27:44.000 --> 00:16:38.000 Wagner's vision is that one day there would be a fleet of carbon 00:17:18.000 --> 00:31:22.000 needing vehicles each about the size of an 18-wheeler sucking up 00:31:52.000 --> 00:27:05.000 the unwanted carbon from Richard Branson's planes. 00:20:17.000 --> 00:29:38.000 Or those New York City Cats. 00:29:23.000 --> 00:29:46.000 Our modern world has an insatiable appetite for energy. 00:32:47.000 --> 00:28:00.000 It is tight economic growth and prosperity. 00:19:34.000 --> 00:33:07.000 Hardly fossil fuels feed 85% of that demand. 00:33:38.000 --> 00:20:13.000 Fossil fuels are still used and we are taking the CO2 and capture 00:23:13.000 --> 00:23:15.000 it and store it safely and permanently. 00:33:47.000 --> 00:18:29.000 Is really critical. 00:18:30.000 --> 00:28:35.000 Not just for calls 50% electricity comes from coal in the US but 00:28:35.000 --> 00:28:18.000 80% of electricity in China comes from coal. 00:18:30.000 --> 00:18:21.000 Jim Rogers, 00:18:21.000 --> 00:29:34.000 the CEO of one of America's largest electric utilities says 00:31:04.000 --> 00:27:28.000 figuring out how to clean up coal must be part of the solution. 00:27:28.000 --> 00:26:02.000 The issue for Congress can we clean it up. 00:26:02.000 --> 00:29:35.000 That is the technology challenge we have, 00:29:35.000 --> 00:29:59.000 because you just can't wake up and tomorrow morning and saying no 00:30:49.000 --> 00:22:40.000 more coal. 00:23:03.000 --> 00:34:26.000 Rogers says we need to be finding ways to capture and store carbon 00:34:26.000 --> 00:29:59.000 . Like Wagner's doing in his lab. 00:29:59.000 --> 00:29:03.000 But on a very large scale we need to do it with a sense of urgency 00:29:03.000 --> 00:21:25.000 . We're not moving faster. 00:27:53.000 --> 00:25:17.000 The process of capturing carbon in burying it is happening on a 00:25:17.000 --> 00:19:42.000 massive scale in a place where people don't take taxis they take. 00:30:56.000 --> 00:20:48.000 The Sahara desert. 00:20:48.000 --> 00:28:18.000 Algeria. 00:33:41.000 --> 00:32:44.000 Location so remote and difficult to get through. 00:32:44.000 --> 00:30:07.000 We had to fly there on British Petroleum chartered flight. 00:25:15.000 --> 00:24:38.000 In Salah was once an important trait lake in the middle of the 00:24:38.000 --> 00:19:19.000 Sahara desert. 00:26:31.000 --> 00:31:53.000 It may be an important link to our energy future. 00:19:19.000 --> 00:29:41.000 North Africa is rich in natural gas. 00:32:52.000 --> 00:33:45.000 At in that gas which might heat your home. 00:33:58.000 --> 00:24:13.000 Comes out of the ground with up to 10% carbon dioxide mixed in. 00:24:13.000 --> 00:23:06.000 And in purity that would make your stove burned less efficiently. 00:25:48.000 --> 00:32:41.000 So the carbon dioxide is scrubbed out like in a submarine. 00:29:03.000 --> 00:21:27.000 Usually that carbon dioxide is just released into the atmosphere. 00:24:19.000 --> 00:20:04.000 But here at it is pressurized and pumped through sewage pipes that 00:20:34.000 --> 00:26:05.000 stretch across the desert. 00:23:10.000 --> 00:27:14.000 5 miles away the gas makes an unexpected turn. 00:32:07.000 --> 00:24:12.000 Here at the K B 5-o 2 site the Algerian national gas company and 00:26:02.000 --> 00:35:05.000 BP are put in the car and outside right back where they found 00:25:47.000 --> 00:35:17.000 underground. 00:31:21.000 --> 00:32:34.000 Geologist John Mitchell E is checking up on the gas pressure. 00:26:45.000 --> 00:20:50.000 This is the inject a wellhead for KB fight both too in this pipe 00:26:30.000 --> 00:31:23.000 is the carbon dioxide that's been compressed the production 00:32:53.000 --> 00:25:24.000 facility. 00:24:16.000 --> 00:36:47.000 The noise you hear is the flow of gas. 00:23:31.000 --> 00:29:54.000 The pressurized carbon outside is then forced more than a mile. 00:30:26.000 --> 00:21:29.000 Where it is pushed into a porous rock formation. 00:22:20.000 --> 00:30:02.000 And effectively trapped back underground. 00:21:36.000 --> 00:25:18.000 That facility takes of power plants were. 00:37:26.000 --> 00:29:11.000 In the wedges game capturing the CO2 like this from 1600 natural 00:29:11.000 --> 00:31:45.000 gas plants would provide one wedge or one 7th of the needed 00:33:45.000 --> 00:24:16.000 solution. 00:21:09.000 --> 00:23:22.000 But doing this is expensive and would increase the price. 00:29:23.000 --> 00:22:27.000 So at present In Salah is one of only 4 such facilities in the 00:22:27.000 --> 00:33:47.000 world. 00:33:47.000 --> 00:23:49.000 Operating at a large scale. 00:25:30.000 --> 00:33:43.000 There are more of these right now because there's no commercial 00:33:43.000 --> 00:31:44.000 reason to do them. 00:32:06.000 --> 00:30:00.000 Price of fossil fuel reflected the damage that was caused by the 00:30:00.000 --> 00:26:34.000 greenhouse gases that office and there would be an economic reason 00:27:34.000 --> 00:28:06.000 to store the carbon dioxide below ground. 00:35:38.000 --> 00:33:50.000 Given that the gases invisible. 00:33:50.000 --> 00:38:02.000 How do they know it is actually staying underground. 00:29:06.000 --> 00:32:59.000 Satellite measurements reveal the surface of the earth at the site 00:32:59.000 --> 00:28:25.000 . We can calculate how much movement there is in the Earth's 00:30:05.000 --> 00:23:40.000 surface under way in Baghdad now cancellations all tight monetary 00:23:40.000 --> 00:27:50.000 motion. 00:27:35.000 --> 00:36:38.000 Fans of the Sahara are stretched up to 12 millimeters to make room 00:37:38.000 --> 00:27:01.000 for the carbon dioxide injected inside. 00:22:29.000 --> 00:26:03.000 So if carbon dioxide from a single natural gas plant can literally 00:26:03.000 --> 00:24:35.000 move the surface of the earth. 00:24:35.000 --> 00:35:18.000 What is the impact of all of the carbon are modern life creates. 00:23:11.000 --> 00:34:53.000 We produce 9 billion tons of carbon a year. 00:37:24.000 --> 00:29:15.000 A number, 00:29:15.000 --> 00:36:46.000 so hard to that, 00:36:46.000 --> 00:32:29.000 we decided to break it down into something more manage. 00:33:42.000 --> 00:38:04.000 What is your contribution to climate change. 00:26:57.000 --> 00:38:39.000 When you look around your home and there are some obvious places 00:23:10.000 --> 00:23:53.000 where we use live energy and for most people during not occur 00:23:53.000 --> 00:27:23.000 again. 00:23:44.000 --> 00:23:45.000 Dan Kaufman, 00:23:45.000 --> 00:27:18.000 of the University of California at Berkeley has tried to figure 00:27:18.000 --> 00:31:20.000 out the carbon footprint of the average America. 00:34:21.000 --> 00:34:02.000 Heating our homes. 00:38:34.000 --> 00:23:36.000 Driving our cars. 00:29:48.000 --> 00:23:10.000 Growing and shipping our food. 00:36:10.000 --> 00:38:33.000 We know how much carbon associated with each year of energy we use 00:38:33.000 --> 00:38:14.000 in our house. 00:38:14.000 --> 00:25:48.000 Adding those things up basic counting. 00:37:28.000 --> 00:23:40.000 But it will depend on obvious. 00:33:30.000 --> 00:37:33.000 Developed a Web site where you can calculate your carbon footprint 00:37:33.000 --> 00:24:08.000 . But we wanted to make it a bit more graphic. 00:29:30.000 --> 00:32:14.000 So we asked him to imagine it as a solid white garden compost 00:35:14.000 --> 00:24:36.000 which is mostly carbon anyway. 00:33:40.000 --> 00:24:05.000 One pound of carbon limited as an invisible gas can be represented 00:24:35.000 --> 00:25:57.000 as a pound of this rich black dirt. 00:29:58.000 --> 00:25:41.000 20 mile trip to the store and back. 00:25:41.000 --> 00:40:22.000 That's about 6 pounds of carbon. 00:39:56.000 --> 00:33:28.000 One short trip. 00:33:28.000 --> 00:31:09.000 The 6 pounds. 00:28:02.000 --> 00:26:23.000 But in one year. 00:26:23.000 --> 00:28:46.000 The average American drives about 10,000 miles. 00:31:31.000 --> 00:40:05.000 This is the average American driver through the year 2 tons of car 00:40:05.000 --> 00:38:29.000 . All those car trips 2 tons. 00:28:52.000 --> 00:33:16.000 And all that driving flying buying and heating we do in a year. 00:38:56.000 --> 00:38:57.000 6 times. 00:32:21.000 --> 00:38:44.000 I show you the average family's carbon footprint I've invited like 00:40:54.000 --> 00:37:35.000 kids to join. 00:25:09.000 --> 00:34:13.000 And this is the average American families Norfolk just one here. 00:32:17.000 --> 00:33:51.000 Your average families 14 tons of carbon waste combines in the 00:35:51.000 --> 00:33:16.000 atmosphere with oxygen to create 50 tons of carbon dioxide gas. 00:34:59.000 --> 00:39:33.000 That gas floating in the atmosphere sunlight enter to warm earth. 00:35:45.000 --> 00:33:26.000 But it blocks. 00:33:26.000 --> 00:39:37.000 Much of the heat from escaping. 00:34:59.000 --> 00:35:32.000 It's like an invisible cortex blanket warm you know are. 00:26:07.000 --> 00:30:31.000 So how can we get energy with the least amount of carbon emissions 00:30:31.000 --> 00:34:12.000 . Mean. 00:39:12.000 --> 00:29:06.000 The first stop on everyone's green energy list the sun. 00:31:09.000 --> 00:30:33.000 Solar power is the poster child for transforming our energy system 00:30:33.000 --> 00:28:27.000 . There's huge potential. 00:28:27.000 --> 00:26:59.000 If you look at the numbers, 00:26:59.000 --> 00:30:13.000 the amount of solar energy reaching the surface of the is 100,000 00:31:33.000 --> 00:39:23.000 terror laws. 00:41:45.000 --> 00:35:48.000 The amount of energy that civilization is using for all of its 00:37:38.000 --> 00:28:21.000 purposes today 17 or 18 Caroline's. 00:29:53.000 --> 00:28:56.000 This makes solar energy enormously attractive. 00:42:06.000 --> 00:39:09.000 You know we need a few square meters of solar panels for every 00:40:19.000 --> 00:28:53.000 person in the world they actually generate all the energy will be 00:30:23.000 --> 00:35:26.000 and we don't do that is it's still too expensive solar panels cost 00:35:26.000 --> 00:37:07.000 a lot of money. 00:37:07.000 --> 00:30:01.000 The question is can we make photovoltaic stitching. 00:32:51.000 --> 00:38:51.000 And if. 00:42:52.000 --> 00:36:05.000 Making solar power cheaply is now the goal. 00:34:56.000 --> 00:29:48.000 And with billions at stake. 00:29:48.000 --> 00:34:19.000 There is a race on to do. 00:33:21.000 --> 00:33:14.000 There is no better place to see the intensity of that race then 00:34:04.000 --> 00:42:44.000 here in Chai. 00:39:37.000 --> 00:28:42.000 China leads the world in the manufacture of solar panels and it's 00:28:42.000 --> 00:36:54.000 not just because of cheap labor, 00:36:54.000 --> 00:29:39.000 a big part of it is down of this man Jung wrong she the CEO of 00:29:39.000 --> 00:34:02.000 suntan and a remarkable rags to riches story. 00:40:54.000 --> 00:33:07.000 Well safety the fortune overnight, 00:33:07.000 --> 00:37:40.000 but I never believed that and he's not sure for anybody. 00:37:40.000 --> 00:27:41.000 Yes, 00:27:41.000 --> 00:37:53.000 he's not sure unless you have the rich a father, 00:37:53.000 --> 00:43:53.000 you know me, 00:43:53.000 --> 00:35:54.000 that's different, 00:35:54.000 --> 00:38:34.000 you know. 00:28:56.000 --> 00:33:18.000 She's family was far from rich. 00:33:18.000 --> 00:30:19.000 In fact, 00:30:19.000 --> 00:29:42.000 his father was so poor that she was put up for adoption. 00:37:43.000 --> 00:40:17.000 Now he's known as the Sun King and is ranked among the richest men 00:40:17.000 --> 00:30:28.000 in the world. 00:36:19.000 --> 00:41:22.000 I'm a very aggressive personality. 00:41:22.000 --> 00:36:06.000 So when I saw as opportunity during I've just. 00:27:51.000 --> 00:42:42.000 Before hitting the jackpot, 00:42:42.000 --> 00:37:26.000 she was a solar scientist in Australia but felt the best. 00:38:26.000 --> 00:39:09.000 Way to get solar out to the world was not through publishing 00:39:09.000 --> 00:40:02.000 papers but through combining science with this. 00:36:37.000 --> 00:39:00.000 The initial reaction from his university colleague and teacher 00:39:30.000 --> 00:41:12.000 Stewart went and was not encouraging. 00:37:03.000 --> 00:34:04.000 Well, 00:34:04.000 --> 00:37:38.000 to be honest when he first mentioned to me his idea why didn't 00:39:28.000 --> 00:30:50.000 actually think it was a good idea, 00:30:50.000 --> 00:30:31.000 and I told you so. 00:43:02.000 --> 00:37:03.000 Today, 00:37:03.000 --> 00:38:46.000 she's former teacher is his chief technology officer. 00:33:07.000 --> 00:38:57.000 Amazing. 00:41:47.000 --> 00:35:50.000 Instead of perfecting technology in the lab, 00:35:50.000 --> 00:30:53.000 they are using their science to cut the cost of solar. 00:40:27.000 --> 00:43:00.000 The basic science of photovoltaic technology is pretty 00:43:00.000 --> 00:38:01.000 straightforward. 00:36:02.000 --> 00:39:24.000 And has been around since the 1950s. 00:31:16.000 --> 00:30:28.000 Photo means light. 00:38:08.000 --> 00:41:38.000 Pictures. 00:36:19.000 --> 00:42:19.000 And so, 00:42:19.000 --> 00:31:41.000 when a photon of light. 00:31:41.000 --> 00:45:23.000 It's a silicon atom its energy Knox an electron 00:39:05.000 --> 00:38:07.000 which is then directed through the silicon. 00:42:17.000 --> 00:31:39.000 To the thin wires on this 00:29:41.000 --> 00:35:15.000 that stream of electrons is electricity back in power. 00:35:15.000 --> 00:31:39.000 Anything from your toaster to your TV. 00:30:23.000 --> 00:32:27.000 During the manufacturing process metal lines that workers wires 00:35:27.000 --> 00:42:18.000 are put on the surface of the silly. 00:45:19.000 --> 00:32:55.000 The problem is these metal lines cannot be made very narrow that 00:33:35.000 --> 00:35:28.000 shines quite a bit of the solar cell surface. 00:42:39.000 --> 00:29:33.000 One way when I mean she working to improve their cells is by 00:29:33.000 --> 00:35:15.000 making the wires thinner and closer together. 00:35:15.000 --> 00:38:37.000 So the electrons don't have to travel so far. 00:39:48.000 --> 00:46:11.000 Look at the solar still here on my left Castaneda lines were 00:46:11.000 --> 00:42:02.000 locked place up. 00:33:13.000 --> 00:36:47.000 The new design increases efficiency which drives down the costs 00:38:38.000 --> 00:30:51.000 its innovations like these that has led she. 00:31:51.000 --> 00:34:26.000 The dominant world production in 2001 it would take Sun Tech a 00:34:26.000 --> 00:38:20.000 whole year to produce what Mao rolls out of the factory in 2 days 00:39:02.000 --> 00:42:42.000 that. 00:44:22.000 --> 00:38:25.000 Kind of growth can be seen across China, 00:38:25.000 --> 00:40:38.000 where they are adding the equivalent of a city the size of Chicago 00:44:58.000 --> 00:31:40.000 every 3 months. 00:40:55.000 --> 00:38:29.000 Nowhere is the enthusiasm for solar power more celebrated than 00:38:29.000 --> 00:35:50.000 into June, 00:35:50.000 --> 00:44:31.000 3 hours south of Beijing. 00:44:32.000 --> 00:34:04.000 And the improvement 00:33:16.000 --> 00:41:17.000 and at night. 00:41:17.000 --> 00:41:28.000 The city is alike. 00:41:28.000 --> 00:39:25.000 With me on that is powered by batteries that charged in the day by 00:40:45.000 --> 00:40:57.000 an enormous array of solar panels. 00:45:09.000 --> 00:31:24.000 The man behind this showcase city is how long me another of 00:33:04.000 --> 00:42:15.000 China's solar millionaires. 00:41:47.000 --> 00:36:58.000 Sort of me. 00:36:58.000 --> 00:33:53.000 It is my dream of a new kind of landscape although lifestyle. 00:34:05.000 --> 00:31:49.000 Now 4 main wants to spread his wealth and passion for solar. 00:43:21.000 --> 00:37:46.000 Among the England has been possessed by this vision to design a 00:39:16.000 --> 00:43:31.000 community which in this case I think it was 88% solar reliant. 00:33:44.000 --> 00:37:57.000 Orville shell the China scholar has been to do here. 00:41:18.000 --> 00:46:08.000 Well, 00:46:08.000 --> 00:43:42.000 it may be flashy he says it's emblematic of China's growing 00:43:42.000 --> 00:37:03.000 prosperity. 00:36:54.000 --> 00:43:25.000 You know China today, 00:43:25.000 --> 00:37:08.000 you see the most amazing thing springing up 00:33:30.000 --> 00:47:10.000 in some sense, 00:47:10.000 --> 00:34:04.000 they're very impressive and involving allowed a very innovative 00:41:44.000 --> 00:41:38.000 technology and their these weirdness other aspects of 00:40:10.000 --> 00:37:24.000 but there is this extraordinary dynamic energy the sort of 00:47:04.000 --> 00:43:25.000 bursting forth. 00:37:37.000 --> 00:36:49.000 And it's not just China. 00:36:49.000 --> 00:42:21.000 The energy problem is seen as an opportunity. 00:42:21.000 --> 00:39:52.000 All over the world. 00:33:33.000 --> 00:40:05.000 China is moving very aggressively. 00:40:05.000 --> 00:34:59.000 India's biggest move in this western Europe is going to move on. 00:34:59.000 --> 00:35:13.000 This even some oil exporting countries OPEC countries are 00:35:13.000 --> 00:33:46.000 beginning to realize that you need to develop cleaner energy 00:33:46.000 --> 00:43:16.000 sources. 00:37:08.000 --> 00:33:52.000 Since coming to the Department of Energy Secretary Steven Chu has 00:33:52.000 --> 00:37:55.000 increased spending on developing clean energy bike$40 00:37:55.000 --> 00:48:35.000 billion. 00:37:16.000 --> 00:42:56.000 And. 00:38:07.000 --> 00:45:22.000 We need technologies solar power wind power carbon capture who's 00:46:12.000 --> 00:35:35.000 gonna supply the world with those technologies. 00:35:35.000 --> 00:36:46.000 I would hope it's you know it's not. 00:46:58.000 --> 00:48:01.000 The US once was enthusiastic about solar. 00:48:01.000 --> 00:42:14.000 At the height of the oil crisis in the 1970s. 00:35:35.000 --> 00:37:36.000 By the end of this century. 00:37:36.000 --> 00:36:31.000 I want our nation to derive 20% of all the energy we use from the 00:37:31.000 --> 00:41:41.000 sun. 00:39:13.000 --> 00:34:47.000 To great fanfare President Jimmy Carter even installed solar 00:36:27.000 --> 00:48:58.000 heaters on the roof of the White House. 00:34:30.000 --> 00:38:52.000 This is accustomed to stock specific risk. 00:35:23.000 --> 00:44:47.000 But a few years later after oil prices drop Ronald Reagan took the 00:44:47.000 --> 00:41:18.000 panel's down. 00:43:46.000 --> 00:39:57.000 Today, 00:39:57.000 --> 00:34:50.000 America is trying to get back into the solar gain. 00:34:01.000 --> 00:38:11.000 I mean, 00:38:11.000 --> 00:37:14.000 the bottom line is we roughly what to double the amount of Queen. 00:48:35.000 --> 00:36:59.000 The goal for Secretary Chu is to double the amount of non 00:36:59.000 --> 00:43:53.000 carbon-emitting energy in the US by 2035 comeback here and a large 00:44:53.000 --> 00:45:24.000 chunk of that this solar. 00:46:45.000 --> 00:33:29.000 Along comes a need and we need clear, 00:33:29.000 --> 00:36:53.000 this is a problem that science can solve that opportunity issue. 00:41:17.000 --> 00:40:21.000 The idea is to invest in science that will pay off in practical 00:40:21.000 --> 00:37:02.000 solutions. 00:44:45.000 --> 00:35:59.000 One of the major challenges we face is transportation which 00:35:59.000 --> 00:46:21.000 accounts for about a 3rd of total energy use. 00:45:53.000 --> 00:45:37.000 There are several different approaches including electric cars. 00:41:13.000 --> 00:49:36.000 Transport fuels represent a special problem. 00:49:36.000 --> 00:46:09.000 The most likely avenue they're currently in the people pursuing 00:48:09.000 --> 00:40:20.000 biofuels. 00:41:11.000 --> 00:46:01.000 Yes. 00:50:11.000 --> 00:43:55.000 Biofuels or form of solar because they come from plants which 00:45:25.000 --> 00:39:57.000 capture the sun's energy to grow. 00:41:30.000 --> 00:46:33.000 One promising approach is being developed at the joint bioenergy 00:49:03.000 --> 00:37:05.000 Institute in Emeryville, 00:37:05.000 --> 00:49:45.000 California. 00:43:16.000 --> 00:41:00.000 Where Jake easily is using plant biology to come up with the fuel 00:41:00.000 --> 00:50:42.000 of the future that will work with our current system. 00:40:13.000 --> 00:42:24.000 We've got about$3 00:42:24.000 --> 00:42:47.000 trillion worth of transportation infrastructure in this country 00:35:18.000 --> 00:41:10.000 with the gas stations pipelines the refineries 00:35:42.000 --> 00:40:53.000 automobiles trains planes. 00:48:52.000 --> 00:35:45.000 We don't have the money to repay all. 00:51:02.000 --> 00:43:36.000 He's idea is to exploit the way plants make food. 00:43:29.000 --> 00:36:02.000 Plants absorb carbon dioxide from the air. 00:35:23.000 --> 00:45:06.000 And use that carbon and oxygen and hydrogen from water, 00:45:06.000 --> 00:43:40.000 plus the sun's energy to make nutrients in the form of a simple 00:43:40.000 --> 00:49:00.000 sugar. 00:37:03.000 --> 00:46:35.000 Ling is working to put that Sugar to use for our. 00:38:48.000 --> 00:47:51.000 One way to think about how he's doing that is he is super charging 00:49:41.000 --> 00:38:43.000 an age old process. 00:37:57.000 --> 00:37:31.000 The basic recipe of beer is to take borrowing a plant that is rich 00:37:31.000 --> 00:50:44.000 in those stored sugars and mix it with yeast. 00:48:06.000 --> 00:46:40.000 Yeast is a microbe that feeds on those plant sugars and turns them 00:46:40.000 --> 00:46:24.000 into alcohol that process is called fermentation. 00:50:06.000 --> 00:41:49.000 Lars Larson the brew master explains. 00:47:49.000 --> 00:38:52.000 This is instrumental to the brewing processed, 00:38:52.000 --> 00:48:35.000 it is the yeast that turns the sugar render Halka hole and create 00:48:35.000 --> 00:45:00.000 a beard was with us away in every animal's life cycle or something 00:45:00.000 --> 00:39:34.000 . Those in the front something comes out the back alcohol to come 00:39:34.000 --> 00:40:15.000 out the back so these to 00:44:57.000 --> 00:42:09.000 but instead of alcohol that you drink. 00:48:29.000 --> 00:52:03.000 Keesler wants to make diesel fuel by genetically altering the east 00:52:03.000 --> 00:38:28.000 . We have an enormous amount of power to change biology manipulate 00:40:38.000 --> 00:49:28.000 biology. 00:47:09.000 --> 00:41:51.000 Instead of Barley the plant. 00:41:51.000 --> 00:49:43.000 He uses his switch grass, 00:49:43.000 --> 00:51:37.000 it's an agricultural waste material but it sugars work easy to 00:36:58.000 --> 00:45:48.000 access. 00:51:18.000 --> 00:39:12.000 We have to go to great lengths to extract the and turn them into 00:39:52.000 --> 00:44:52.000 this. 00:52:33.000 --> 00:45:17.000 Then he feeds the sugar to genetically altered yeast like at the 00:45:17.000 --> 00:45:21.000 brewery but what comes out of the back side of this yeast. 00:45:21.000 --> 00:45:04.000 You can put directly into your car or your plane. 00:52:34.000 --> 00:40:38.000 This is not your grandmother's east this is has been souped up to 00:42:18.000 --> 00:53:22.000 produce an advanced biofuel you all that is nearly identical to 00:37:13.000 --> 00:51:23.000 what we had today. 00:45:24.000 --> 00:50:14.000 You know. 00:51:04.000 --> 00:38:56.000 There is just one care. 00:50:18.000 --> 00:47:00.000 If Richard Branson came here today, 00:47:00.000 --> 00:52:33.000 I could give him a tablespoon of jet fuel that we've made here in 00:52:33.000 --> 00:46:44.000 the laboratory. 00:38:55.000 --> 00:48:17.000 That tablespoon would cost about$100,000 00:49:27.000 --> 00:45:28.000 . If if if if 00:43:40.000 --> 00:47:03.000 well I would Al Absi love to meet up with 5th. 00:43:15.000 --> 00:50:17.000 It's just fantastic to have all these people trying to come up 00:50:47.000 --> 00:40:19.000 with the big breakthroughs. 00:40:19.000 --> 00:52:41.000 I think the breakthroughs will happen it needs money resources 00:38:02.000 --> 00:42:03.000 time and energy. 00:42:03.000 --> 00:47:23.000 Great, 00:47:23.000 --> 00:42:35.000 great people to put their minds. 00:38:27.000 --> 00:52:21.000 I firmly believe that technology can save us from climate change, 00:52:21.000 --> 00:46:06.000 but the changes that we're talking about our heroic in scale, 00:46:06.000 --> 00:40:08.000 they're not without precedent. 00:40:08.000 --> 00:50:00.000 But they are still heroic in scale. 00:49:02.000 --> 00:40:26.000 One challenge is to figure out which advances in the laboratory 00:40:26.000 --> 00:46:49.000 could be increased to an industrial scale. 00:46:49.000 --> 00:48:01.000 Not all promising science is practical. 00:46:42.000 --> 00:50:05.000 But in the wedges game there is an immediate way to reduce the 00:51:25.000 --> 00:49:46.000 size of the problem. 00:48:58.000 --> 00:54:21.000 The potential is huge and it's called efficiency. 00:39:53.000 --> 00:39:38.000 The very word efficiency says you get the same bang for a less 00:41:38.000 --> 00:46:38.000 buck. 00:47:49.000 --> 00:53:42.000 Efficiency is a car that gets better MP chief in them. 00:53:42.000 --> 00:45:35.000 The we in the house, 00:45:35.000 --> 00:48:37.000 said we keep, 00:48:37.000 --> 00:41:11.000 and so you had the same award inside houses with less natural gas 00:42:41.000 --> 00:53:32.000 currently on that. 00:55:02.000 --> 00:42:36.000 Not using energy in the first place is the easiest way to earn a 00:42:36.000 --> 00:47:16.000 wedge. 00:50:38.000 --> 00:55:02.000 It's like the old Benjamin Franklin quote a penny saved is a penny 00:55:02.000 --> 00:54:08.000 . Ben Franklin himself would be proud of what is going on here at 00:54:08.000 --> 00:41:21.000 the national archives in Washington DC. 00:41:34.000 --> 00:49:27.000 The archives is all about saving America's most important 00:49:27.000 --> 00:39:50.000 documents like the US Constitution, 00:39:50.000 --> 00:40:11.000 which Franklin signing. 00:48:23.000 --> 00:47:26.000 But it paid very little attention to saving energy. 00:40:39.000 --> 00:55:39.000 Today, 00:55:39.000 --> 00:41:11.000 that's all changed. 00:47:03.000 --> 00:48:26.000 James Garvin was once just the buildings engineered, 00:48:26.000 --> 00:53:48.000 but now he's also become a detective 00:39:41.000 --> 00:51:44.000 using a thermal imaging camera Garvin is tracking down an urgent 00:52:24.000 --> 00:44:15.000 leaks. 00:54:15.000 --> 00:41:59.000 We're looking for leaks to see areas where we're losing a lot of 00:41:59.000 --> 00:48:19.000 the Kerry. 00:55:10.000 --> 00:45:43.000 Red means hot which is wasted energy. 00:49:54.000 --> 00:53:37.000 Obviously and the problems start right at the front door. 00:52:48.000 --> 00:45:21.000 We don't need a special camera to see problems here. 00:51:12.000 --> 00:49:24.000 You can feel the heat through the 3 quarter inch. 00:39:56.000 --> 00:43:26.000 Hemscott. 00:45:06.000 --> 00:47:29.000 That escaping in heat may help this guy outside state. 00:52:00.000 --> 00:46:15.000 But the point is to keep all the heat inside the building so the 00:48:05.000 --> 00:55:08.000 archives was pulled in efficiency experts to reduce its carbon 00:55:48.000 --> 00:42:09.000 foot. 00:42:42.000 --> 00:40:34.000 They installed new efficient radiators. 00:55:15.000 --> 00:41:31.000 And lights that are 20% brighter yet use a 3rd less energy and 00:41:31.000 --> 00:48:54.000 motion sensors to shut them off when employees don't. 00:55:06.000 --> 00:43:20.000 But the biggest ticket items were installing efficient boilers 00:49:00.000 --> 00:56:22.000 left and plugging in those leaky gas. 00:40:25.000 --> 00:44:18.000 The archives is on track to reduce its emissions by more than 00:44:18.000 --> 00:44:30.000 1,000 tons of carbon a year. 00:54:31.000 --> 00:42:35.000 That reduction doesn't just show up and garments camera is good 00:42:35.000 --> 00:48:35.000 news, 00:48:35.000 --> 00:46:16.000 blue, 00:46:16.000 --> 00:42:28.000 it's also save in the archives, 00:42:28.000 --> 00:56:08.000 a lot of green. 00:45:00.000 --> 00:55:32.000 Its energy bill will be reduced by$1.2 00:55:32.000 --> 00:42:48.000 million every year which will pay for the upgrade in only 5 years 00:42:48.000 --> 00:54:38.000 . Well you know. 00:56:18.000 --> 00:55:50.000 Everybody loves efficiency, 00:55:50.000 --> 00:43:04.000 efficiency saves you money it doesn't cost you money. 00:45:45.000 --> 00:48:48.000 Efficiency savings aren't just limited to grand old government 00:49:38.000 --> 00:53:08.000 built. 00:44:11.000 --> 00:53:24.000 About a quarter of the energy an average American uses is at home 00:53:24.000 --> 00:47:20.000 . Increasing home efficiency can save a 3rd on your energy bill. 00:51:02.000 --> 00:50:05.000 And we know our cars can go farther on a gallon of gas. 00:52:35.000 --> 00:55:05.000 They. 00:54:26.000 --> 00:42:20.000 If you took all the cars that are going to exist in the world 50 00:44:20.000 --> 00:51:53.000 years from now and made them have 60 miles per gallon. 00:51:53.000 --> 00:55:53.000 Instead, 00:55:53.000 --> 00:51:48.000 a 30 miles per gallon that creates a wedge it affects one billion 00:53:48.000 --> 00:54:20.000 metric tons of carbon atoms. 00:54:20.000 --> 00:45:54.000 That would have been emitted to the atmosphere while still 00:45:54.000 --> 00:49:46.000 providing us with the trap we want. 00:46:27.000 --> 00:46:01.000 That won't change is the equivalent of replacing 800 coal plants. 00:54:42.000 --> 00:55:25.000 And that's just the beginning of what efficiency improvements can 00:56:15.000 --> 00:57:35.000 do. 00:53:55.000 --> 00:44:48.000 In the 1970s energy efficiency, 00:44:48.000 --> 00:54:19.000 got a lot of attention, 00:54:19.000 --> 00:43:14.000 but for many it was symbolic of a counter cultural lifestyle and 00:43:14.000 --> 00:42:26.000 making uncomfortable sacrifices. 00:56:09.000 --> 00:42:40.000 But, 00:42:40.000 --> 00:46:51.000 as Stewart Brand, 00:46:51.000 --> 00:58:43.000 a leader of the environmental movement back then points out 00:55:44.000 --> 00:51:38.000 efficiency changes in California have kept energy use the same 00:42:59.000 --> 00:46:41.000 while still allowing the economy to double. 00:54:22.000 --> 00:54:26.000 Brand became famous for writing the whole earth catalog a resource 00:55:36.000 --> 00:50:18.000 guide for a sustainable lifestyle. 00:56:52.000 --> 00:55:13.000 Today, 00:55:13.000 --> 00:45:04.000 he says. 00:45:04.000 --> 00:49:27.000 It's important to develop a whole new catalog of tools to fight 00:50:27.000 --> 00:47:18.000 climate change. 00:55:02.000 --> 00:48:24.000 From harnessing wave energy. 00:54:21.000 --> 00:44:55.000 To use the Earth's geothermal heat. 00:44:55.000 --> 00:58:57.000 I think it's encouraging to hear that were not there and 00:46:28.000 --> 00:46:32.000 everything on one particular thing is somehow win is gonna save us 00:53:12.000 --> 00:55:56.000 with a somehow nuclear is gonna save us there is such a full 00:55:56.000 --> 00:52:40.000 spectrum problem is going to take a full spectrum set of solutions 00:52:40.000 --> 00:58:25.000 . Brand has surprised many by his willingness to consider this 00:58:25.000 --> 00:55:06.000 full spectrum. 00:58:37.000 --> 00:55:00.000 In the 1970s he fought nuclear energy. 00:55:22.000 --> 00:58:57.000 Today he has done an about face the shift was starting to really 00:58:57.000 --> 00:48:12.000 take climate change seriously enough to challenge by assumption 00:48:12.000 --> 00:52:23.000 that I knew enough about nuclear. 00:58:30.000 --> 00:50:32.000 But the senior army in Fukushima, 00:50:32.000 --> 00:53:05.000 Japan has revived old fears about nuclear energy. 00:56:28.000 --> 00:48:23.000 When this tsunami struck this 1970s style reactor was flooded and 00:48:23.000 --> 00:54:05.000 it's diesel generators didn't work, 00:54:05.000 --> 00:47:47.000 causing the cooling system to fail. 00:56:49.000 --> 00:56:41.000 That led to releases of radiation. 00:50:53.000 --> 00:51:05.000 Does this disaster change brands mind. 00:47:36.000 --> 00:56:28.000 And as in Fukushima change my support. 00:51:51.000 --> 00:50:14.000 I think a question we're asking now is comparing the risks of 00:50:14.000 --> 00:46:29.000 nuclear to the risks of climate change and we do that risk 00:48:19.000 --> 00:47:22.000 analysis nuclear keeps looking pretty good, 00:47:22.000 --> 00:59:03.000 even with Fukushima my. 00:55:35.000 --> 00:45:17.000 According to the game, 00:45:17.000 --> 00:48:11.000 replacing 800 coal plants with nuclear power would solve one wedge 00:48:41.000 --> 00:55:05.000 of the needed carbon solution but can nuclear be made safer. 00:47:18.000 --> 00:58:41.000 Nuclear power plants require massive cooling systems to keep the 00:58:41.000 --> 00:57:42.000 reactor core say. 00:46:54.000 --> 00:59:17.000 In the old style plants like those in Japan that was done with a 00:59:17.000 --> 00:52:00.000 vast array of pipes valves and back upon. 01:00:31.000 --> 00:53:25.000 It was the failure of these backup systems that led to the nuclear 00:53:25.000 --> 00:46:26.000 crisis. 00:51:48.000 --> 00:47:32.000 The latest designs for reactors like this Westinghouse AP 1,000 00:51:22.000 --> 00:49:13.000 are much simpler. 00:54:04.000 --> 00:56:17.000 An example was the large tank of cooling water that sits right on 00:57:27.000 --> 00:52:51.000 top so that gravity will do the work in the event of an emergency 00:52:51.000 --> 00:59:57.000 . This tankers a 3 day supply of cooling water and requires no 01:00:47.000 --> 00:53:48.000 electricity. 00:55:12.000 --> 01:01:45.000 This next generation of nuclear plant is already in production. 00:53:57.000 --> 00:50:58.000 But to see it. 00:50:58.000 --> 00:57:21.000 We have to go back to China because no nuclear plant has been 00:58:11.000 --> 00:48:54.000 built in the US since the 1970s. 00:58:56.000 --> 00:58:17.000 Kate Jackson, 00:58:17.000 --> 00:57:41.000 chief technology officer for Westinghouse says one key benefit of 00:57:41.000 --> 00:49:25.000 the 81,000 is that it is bringing standardized designs. 00:55:16.000 --> 00:58:59.000 Sterilization is an old concept just never been applied to the 00:58:59.000 --> 00:58:50.000 nuclear industry before. 00:50:23.000 --> 00:49:47.000 The old nuclear plants were custom built with more moving parts to 00:49:47.000 --> 00:59:17.000 go wrong 00:57:39.000 --> 00:48:10.000 now. 00:48:50.000 --> 00:50:14.000 Each plant is built in standardized modules like a giant Lego set 00:50:14.000 --> 00:59:58.000 . The majority are attached about their and the high things in 01:01:08.000 --> 00:50:11.000 staff they've been fresher testing it's right again. 00:48:35.000 --> 00:56:18.000 There are a total of 350 modules for each power station. 00:53:41.000 --> 00:55:46.000 Like here in san 4 hours outside of Shanghai where Kate Jackson 00:55:46.000 --> 00:47:08.000 has come to see the progress. 00:57:38.000 --> 00:48:02.000 It's wonderful because you get to see these building blocks being 00:48:52.000 --> 00:48:04.000 moved and put into place. 01:02:58.000 --> 00:53:40.000 Piece by piece. 00:53:40.000 --> 00:53:32.000 The nuclear power station take shape. 00:52:54.000 --> 00:48:37.000 Stepping inside Jackson finds the reactor. 00:55:30.000 --> 00:57:13.000 This is where the nuclear reaction will generate the heat that 00:57:53.000 --> 00:48:25.000 drives the electrical generator. 00:49:46.000 --> 00:55:08.000 Enough power for more than a million homes. 01:01:01.000 --> 00:50:55.000 The plant and men should come on line in nearly half the usual 00:50:55.000 --> 00:49:57.000 time only 4 years. 00:48:39.000 --> 00:54:00.000 Over the next 30 years. 00:54:00.000 --> 00:55:03.000 China plans to build 400 nuclear reactors. 00:56:35.000 --> 01:02:18.000 Designs like the AP 1,000 could address some of the safety 01:02:18.000 --> 01:03:21.000 concerns that Japan's crisis exposed, 01:03:21.000 --> 00:53:26.000 but there are still many old style plans in operation 23 in the US 00:53:26.000 --> 00:50:41.000 alone and all nuclear plants suffer from the long-standing problem 00:52:31.000 --> 00:59:43.000 of how to dispose of their nuclear waste 00:51:35.000 --> 00:51:08.000 Nathan Miller vault thinks these problems can be overcome. 01:00:38.000 --> 00:59:03.000 Nuclear is one of the carbon free emission technologies that 00:59:33.000 --> 01:01:45.000 absolutely works at scale today. 00:59:46.000 --> 00:58:11.000 In Seattle fault former chief technology officer of Microsoft is 00:58:11.000 --> 00:48:35.000 teaming up with his old friend Bill Gates to work on designing a 00:48:35.000 --> 00:58:58.000 future generation of nuclear technology called Terra power. 00:49:09.000 --> 00:57:51.000 We need a miracle in energy technology. 01:04:52.000 --> 01:04:46.000 Think we need a miracle sounds extreme but in fact miracles on the 01:04:46.000 --> 00:53:28.000 mainland are flat. 00:53:28.000 --> 00:51:40.000 The entire technology industry is about. 00:58:23.000 --> 01:04:46.000 The miracles revolt predicts our new designs that would more 01:04:46.000 --> 00:53:10.000 safely and efficiently you spent nuclear fuel, 00:53:10.000 --> 00:51:22.000 which is creating the waste problem today. 00:56:04.000 --> 00:53:48.000 He looks to technology not just provide energy for us, 00:53:48.000 --> 01:01:41.000 but to satisfy the aspirations for growth in the rest of the world 01:01:41.000 --> 00:56:36.000 . The energy task for the 21st century is how can we get every 00:56:36.000 --> 00:53:50.000 citizen the earth the kind of energy use as you find in the 00:53:50.000 --> 01:03:51.000 developed world. 01:03:51.000 --> 00:54:24.000 It is a question of fairness and equity. 01:00:05.000 --> 01:02:10.000 Some people say we in the United States lot Wes and perhaps we 01:02:10.000 --> 00:59:01.000 ought to, 00:59:01.000 --> 00:50:44.000 I don't know way to force us to use less. 01:01:46.000 --> 01:04:00.000 They and the Chinese art and not use as much as we use now but 00:51:31.000 --> 00:55:52.000 they're headed there. 00:55:52.000 --> 00:58:13.000 I don't know how you start for them. 00:49:56.000 --> 00:59:38.000 The demand for energy indeed appears on stock. 00:54:22.000 --> 00:57:55.000 Energy demand is predicted to triple by the end of the century. 00:55:28.000 --> 01:04:11.000 Which means there is probably a need for all the solutions science 01:05:11.000 --> 01:01:42.000 can come up with. 00:58:24.000 --> 00:59:18.000 People always are looking for the technological magic bullet, 00:59:18.000 --> 01:06:08.000 though, 01:06:08.000 --> 00:54:52.000 the one thing that if we just get it right will say. 01:05:13.000 --> 01:00:05.000 There probably is no silver bullet, 01:00:05.000 --> 00:56:49.000 there may be a silver shotgun in the sense of a white variety 00:57:30.000 --> 00:51:41.000 advances, 00:51:41.000 --> 01:00:33.000 which together will solve a large part of this. 01:06:35.000 --> 01:01:21.000 One big nuclear power plant is the same as 3,000 big wind turbines 01:01:51.000 --> 00:51:34.000 and the about 50 square mile. 00:52:16.000 --> 01:03:17.000 The question is which do you want. 01:03:17.000 --> 01:03:50.000 And the answer is everybody wanted somewhere other than their own 01:03:50.000 --> 00:59:41.000 backyard. 00:59:41.000 --> 00:57:42.000 Well guess what, 00:57:42.000 --> 01:05:22.000 if you don't, 01:05:22.000 --> 01:01:43.000 solve the problem, 01:01:43.000 --> 00:59:55.000 your backyard isn't gonna look the same anyway. 01:04:57.000 --> 00:52:40.000 And the energy problem is a moving target. 00:51:52.000 --> 00:59:06.000 Every day as demand grows and carbon accumulates in the atmosphere 00:59:06.000 --> 00:57:18.000 , the problem increases. 01:00:09.000 --> 01:02:40.000 This is the problem, 01:02:40.000 --> 00:55:25.000 in which procrastination Kerry's really serious penalties. 01:01:16.000 --> 01:01:09.000 America has been down the past of procrastination before. 00:55:02.000 --> 00:59:35.000 Perhaps one of the most poignant places to see the results of that 01:03:55.000 --> 01:00:26.000 is back in China. 01:03:57.000 --> 00:51:51.000 At a town pulled out of poverty by solar manufacturing. 01:05:12.000 --> 01:05:34.000 At the Joe Silva received. 01:05:34.000 --> 00:52:56.000 There is a popular display. 01:01:57.000 --> 00:59:50.000 One of the solar panels that Jimmy Carter installed on the White 00:59:50.000 --> 00:59:42.000 House back in 1979. 01:00:14.000 --> 00:57:35.000 This solar heater. 00:54:26.000 --> 00:54:08.000 You to be a curiosity. 00:54:08.000 --> 01:05:09.000 The museum piece, 01:05:09.000 --> 01:07:23.000 an example of a road not taken. 01:07:23.000 --> 00:53:04.000 Well, 00:53:04.000 --> 01:02:37.000 I can be just a small part of one of the greatest and most 01:02:37.000 --> 01:07:41.000 exciting adventures ever undertaken by the American Pete. 00:58:28.000 --> 01:02:39.000 30 years later, 01:02:39.000 --> 00:53:03.000 the need to venture into new forms of energy is even greater. 01:04:35.000 --> 00:54:57.000 The challenge is huge. 01:01:10.000 --> 01:00:43.000 The potential consequences of an action are bigger. 00:57:15.000 --> 00:55:37.000 Necessities mother of all inventions, 00:55:37.000 --> 00:56:40.000 we got the biggest necessity and it's going to be your mother many 00:57:50.000 --> 01:02:40.000 encourage. 01:05:05.000 --> 00:52:42.000 This Nova program is available on DVD sugar PBS.org or call 100