1 00:00:07,047 --> 00:00:13,046 Like 40% of the human population, we live within 100 miles of a coast, 2 00:00:13,046 --> 00:00:18,428 and here, in Great Mills, we're only about five miles from a coast. 3 00:00:18,428 --> 00:00:23,578 Our coasts, as you can see, are beautiful and bountiful, 4 00:00:23,578 --> 00:00:25,535 but they're also in danger. 5 00:00:26,025 --> 00:00:29,508 The seas are rising across the planet, 6 00:00:29,508 --> 00:00:34,358 threatening our homes but also the farms where we grow our food. 7 00:00:34,358 --> 00:00:35,558 For instance, 8 00:00:35,558 --> 00:00:37,707 the eastern shore of Maryland 9 00:00:37,707 --> 00:00:41,121 was farmed for many years by native peoples 10 00:00:41,121 --> 00:00:44,338 before the British colonists arrived, 11 00:00:44,338 --> 00:00:47,520 and it is still heavily farmed even today. 12 00:00:48,670 --> 00:00:53,215 But America's first farms are starting to go underwater; 13 00:00:53,685 --> 00:00:57,108 our history is quite literally drowning. 14 00:00:58,718 --> 00:01:02,232 And even as we lose land in our own backyards, 15 00:01:02,232 --> 00:01:06,598 we're losing land in Vietnam and Bangladesh, 16 00:01:06,598 --> 00:01:08,297 two coastal countries 17 00:01:08,297 --> 00:01:11,730 where we grow a large portion of the world's rice. 18 00:01:12,830 --> 00:01:15,121 And when we talk about climate change, 19 00:01:15,141 --> 00:01:18,630 we often talk about it like it's this thing of the future, 20 00:01:18,630 --> 00:01:21,412 something we can worry about in a couple of years 21 00:01:21,412 --> 00:01:24,012 or even a couple of decades, 22 00:01:24,012 --> 00:01:26,612 but climate change is happening. 23 00:01:26,612 --> 00:01:28,811 It's happening now. 24 00:01:28,811 --> 00:01:30,344 And here in Maryland, 25 00:01:30,344 --> 00:01:34,247 the symptoms of the disease are already starting to show. 26 00:01:35,227 --> 00:01:37,392 Many people are unaware, 27 00:01:37,392 --> 00:01:40,891 but there is an invisible flood moving far inland 28 00:01:40,891 --> 00:01:45,920 in advance of the surface floods that can drown our homes and our farms. 29 00:01:46,210 --> 00:01:50,323 And that invisible flood is called “saltwater intrusion,” 30 00:01:50,323 --> 00:01:53,505 and it can make our water undrinkable. 31 00:01:53,505 --> 00:01:57,204 And it means that many of the crops growing along our coastlines 32 00:01:57,204 --> 00:01:59,647 have salty and wet "feet”; 33 00:01:59,677 --> 00:02:02,405 that is, their roots are burrowing below ground 34 00:02:02,415 --> 00:02:04,435 searching for pure water, 35 00:02:04,685 --> 00:02:06,799 but they're finding only salt. 36 00:02:07,219 --> 00:02:10,876 And you can see what that looks like in this picture here. 37 00:02:10,876 --> 00:02:14,950 All of this white stuff along the edge of this farm field 38 00:02:14,950 --> 00:02:16,383 is salt. 39 00:02:17,233 --> 00:02:20,677 And just like in Vietnam and Bangladesh, 40 00:02:21,147 --> 00:02:25,333 it can feel like our Maryland farmers are fighting a losing battle. 41 00:02:25,743 --> 00:02:28,216 Here in the Chesapeake bay region, 42 00:02:28,256 --> 00:02:33,435 sea level rise rates are three times the global average. 43 00:02:33,452 --> 00:02:35,453 And that means that our communities 44 00:02:35,453 --> 00:02:40,611 are some of the first to be hit by the slow burn of climate change. 45 00:02:41,721 --> 00:02:43,251 And unfortunately, 46 00:02:43,251 --> 00:02:46,050 we're not going to be able to stop climate change right now 47 00:02:46,050 --> 00:02:48,489 or reverse it, reverse the tides, 48 00:02:48,999 --> 00:02:52,046 but what we can do is work together. 49 00:02:52,366 --> 00:02:53,726 We can work together 50 00:02:53,726 --> 00:02:58,446 as researchers, as farmers and local government agencies 51 00:02:58,446 --> 00:03:03,511 to design solutions that can help us prevent climate change in the future 52 00:03:03,511 --> 00:03:08,037 but also allow us to thrive as communities right now. 53 00:03:08,377 --> 00:03:12,376 And when I say communities, I mean communities of people 54 00:03:12,376 --> 00:03:15,642 but also of plants and animals. 55 00:03:16,292 --> 00:03:18,509 So, what do we do? 56 00:03:18,509 --> 00:03:21,278 We have to manage the transition, 57 00:03:21,748 --> 00:03:25,824 and that means thinking about climate change as a moving target. 58 00:03:25,824 --> 00:03:29,340 So what's going to work now on this farm field 59 00:03:29,340 --> 00:03:30,559 won't work in five years, 60 00:03:30,559 --> 00:03:35,255 and what works in five years isn't going to work in 10 years. 61 00:03:35,255 --> 00:03:40,537 With some of the fastest rates of sea level rise on the planet, 62 00:03:40,537 --> 00:03:45,869 the Eastern Seaboard of the United States is at the leading edge of climate change. 63 00:03:46,169 --> 00:03:50,394 And it is our job to manage that moving edge. 64 00:03:51,234 --> 00:03:54,083 The first thing we need are maps, 65 00:03:54,083 --> 00:03:55,200 like this one, 66 00:03:55,200 --> 00:03:59,945 that can help us understand the current extent of saltwater intrusion 67 00:03:59,975 --> 00:04:02,329 but also understand where it's headed. 68 00:04:02,329 --> 00:04:05,983 And that will provide us with an early warning system 69 00:04:06,013 --> 00:04:12,022 that can help us generate a targeted plan for every stage of saltwater intrusion. 70 00:04:12,022 --> 00:04:17,148 And so my team is working to develop some of these first ever maps 71 00:04:17,148 --> 00:04:19,186 of saltwater intrusion, 72 00:04:19,186 --> 00:04:23,629 giving us "eyes" on the disease for the very first time. 73 00:04:23,629 --> 00:04:26,096 And so you can see here in this map 74 00:04:26,096 --> 00:04:28,247 all of these pink areas 75 00:04:28,247 --> 00:04:31,880 are where we believe saltwater intrusion to be right now 76 00:04:31,880 --> 00:04:34,761 in two coastal Maryland counties, 77 00:04:34,761 --> 00:04:37,996 in Dorchester and in Somerset. 78 00:04:38,896 --> 00:04:42,331 And so, if we can understand where saltwater intrusion is 79 00:04:42,611 --> 00:04:45,160 but also understand the rate of its spread, 80 00:04:45,160 --> 00:04:46,443 we can help fight it, 81 00:04:46,443 --> 00:04:49,926 that will help us fight it and maybe even contain it. 82 00:04:50,926 --> 00:04:53,175 The second thing we have to do is work together. 83 00:04:53,175 --> 00:04:54,628 We have to work together 84 00:04:54,628 --> 00:04:58,888 as landowners and as scientists and as policy makers 85 00:04:58,888 --> 00:05:04,196 to design solutions that can help us protect our environmental health 86 00:05:04,196 --> 00:05:07,964 but also the farmer or landowner's bottom line. 87 00:05:08,574 --> 00:05:09,734 And third, 88 00:05:09,734 --> 00:05:12,585 we have to start making changes now 89 00:05:12,585 --> 00:05:16,335 that can help us prevent climate change in the future. 90 00:05:16,985 --> 00:05:21,575 And if we can do these three things, we can save our coastlines. 91 00:05:22,015 --> 00:05:25,401 So let me give you some examples of what that might look like. 92 00:05:28,181 --> 00:05:32,168 Saltwater intrusion is leading to the large-scale death 93 00:05:32,168 --> 00:05:35,528 of coastal timber plantations and forests, 94 00:05:35,528 --> 00:05:37,945 often called ghost forests. 95 00:05:37,945 --> 00:05:40,412 And we're going to watch a short clip just now 96 00:05:40,412 --> 00:05:43,360 that will give you a sense of what that looks like, 97 00:05:43,360 --> 00:05:44,645 the dramatic impact 98 00:05:44,645 --> 00:05:47,759 that saltwater intrusion is having on our systems. 99 00:05:48,074 --> 00:05:51,054 (Video) (Insects chirping and wind blowing) 100 00:05:55,349 --> 00:05:58,019 Narrator: When you see a ghost forest for the first time, 101 00:05:58,019 --> 00:06:02,658 you're struck by how eerie it is, sort of like a ghost town. 102 00:06:02,658 --> 00:06:04,058 (Ominous music) 103 00:06:06,364 --> 00:06:11,849 This ground is now too salty and too wet to support living trees. 104 00:06:16,586 --> 00:06:20,580 [Ghost forest] 105 00:06:21,743 --> 00:06:23,021 (Music ends) 106 00:06:27,073 --> 00:06:28,836 Kate Tully: If left unchecked, 107 00:06:28,836 --> 00:06:33,242 saltwater intrusion can burn trees from the inside out, 108 00:06:34,032 --> 00:06:39,450 and the understory that's left can become overrun with invasive species. 109 00:06:39,450 --> 00:06:43,248 And these invasive species can choke out native marsh plants, 110 00:06:43,248 --> 00:06:47,214 and they do not provide good habitat for nesting bird species. 111 00:06:47,714 --> 00:06:50,932 However, we can help design solutions 112 00:06:50,932 --> 00:06:54,542 that will enable landowners to remove timber early. 113 00:06:54,912 --> 00:06:57,344 We can use our early warning systems, 114 00:06:57,344 --> 00:06:58,561 these maps, 115 00:06:58,561 --> 00:07:02,362 to help us identify the optimum time to remove timber 116 00:07:02,362 --> 00:07:05,393 so that the landowners can maximize their profits 117 00:07:05,393 --> 00:07:08,159 and minimize their financial losses; 118 00:07:08,159 --> 00:07:09,893 and at the same time, 119 00:07:09,893 --> 00:07:14,345 we can promote the transition of these ghost forests 120 00:07:14,345 --> 00:07:16,485 into marshes. 121 00:07:17,985 --> 00:07:20,470 So my team has been working very closely 122 00:07:20,470 --> 00:07:23,028 with the Maryland Department of Planning 123 00:07:23,028 --> 00:07:25,311 and the Maryland Department of Natural Resources, 124 00:07:25,311 --> 00:07:28,585 two Maryland agencies that are thinking about this a lot. 125 00:07:28,585 --> 00:07:30,486 And we're asking really tough questions, 126 00:07:30,486 --> 00:07:35,959 like "What happens to your property rights as your land slips under water?" 127 00:07:37,299 --> 00:07:39,497 We can't ask landowners 128 00:07:39,497 --> 00:07:43,214 to bear the full burden of climate change alone. 129 00:07:43,214 --> 00:07:44,993 These people are our neighbors, 130 00:07:44,993 --> 00:07:49,711 and we can help support them with science-based management strategies 131 00:07:49,711 --> 00:07:51,299 and policies. 132 00:07:53,959 --> 00:07:55,055 In some cases, 133 00:07:55,055 --> 00:07:58,559 the traditional crops we grow are failing, 134 00:07:58,559 --> 00:08:03,985 so the typical mid-Atlantic rotation of corn, soy, and wheat 135 00:08:03,985 --> 00:08:05,891 is no longer viable. 136 00:08:06,401 --> 00:08:11,249 And these crops are not adapted to high concentrations of salt, 137 00:08:11,249 --> 00:08:15,048 and they can't sit around for a long time with wet feet. 138 00:08:15,398 --> 00:08:21,459 And so my team is working to develop some new alternative crop rotations, 139 00:08:21,499 --> 00:08:24,471 better adapted to this new normal. 140 00:08:24,501 --> 00:08:27,627 And so we're experimenting with sorghum, 141 00:08:27,627 --> 00:08:30,527 a salt tolerant soybean, 142 00:08:30,527 --> 00:08:33,780 and malting barley for many of our microbreweries 143 00:08:33,780 --> 00:08:35,115 in this area. 144 00:08:35,810 --> 00:08:38,391 And we are not the only people working on this. 145 00:08:38,391 --> 00:08:40,059 There are Norwegian farmers 146 00:08:40,059 --> 00:08:44,024 who are experimenting with a salt-tolerant potato, 147 00:08:44,024 --> 00:08:48,146 and in Louisiana, they're experimenting with a salt-tolerant rice 148 00:08:48,146 --> 00:08:51,407 that could be grown in many coastal low-lying regions, 149 00:08:51,407 --> 00:08:54,166 like Vietnam and Bangladesh. 150 00:08:54,656 --> 00:08:57,487 And many a health nut will be pleased to know 151 00:08:57,487 --> 00:09:01,370 that quinoa is actually a very salt tolerant crop. 152 00:09:03,720 --> 00:09:06,481 However, there is another issue. 153 00:09:06,801 --> 00:09:12,401 Farm soils are loaded with nutrients, like nitrogen and phosphorus, 154 00:09:12,401 --> 00:09:15,409 from decades of fertilizer applications, 155 00:09:15,789 --> 00:09:21,249 and these nutrients are leading to toxic algal blooms in our water bodies 156 00:09:21,249 --> 00:09:23,613 that can be seen from space. 157 00:09:24,633 --> 00:09:28,996 And this image here shows you a map of the current impact 158 00:09:28,996 --> 00:09:33,530 that agriculture is already having along our coastlines, 159 00:09:33,530 --> 00:09:36,708 such as causing the formation of the dead zone 160 00:09:36,708 --> 00:09:38,738 in the Gulf of Mexico. 161 00:09:39,278 --> 00:09:40,535 And the problem is 162 00:09:40,535 --> 00:09:44,112 that saltwater intrusion only makes matters worse. 163 00:09:44,112 --> 00:09:46,409 Because of its unique chemistry, 164 00:09:46,409 --> 00:09:50,065 it can actually release even more nitrogen and phosphorus 165 00:09:50,065 --> 00:09:51,565 from farm soils. 166 00:09:51,975 --> 00:09:53,342 So you can imagine 167 00:09:53,342 --> 00:09:56,473 that as saltwater intrusion marches across the landscape, 168 00:09:56,473 --> 00:10:00,907 this could have potentially devastating consequences for water quality 169 00:10:00,907 --> 00:10:03,143 all along the Eastern Seaboard. 170 00:10:03,673 --> 00:10:06,788 However, there are options. 171 00:10:06,788 --> 00:10:11,319 We can plant fast-growing grass species, like a switchgrass, 172 00:10:11,319 --> 00:10:16,352 that can suck nutrients out of the soil and store it in its plant tissues. 173 00:10:16,352 --> 00:10:18,969 And many livestock operations 174 00:10:18,969 --> 00:10:22,883 are interested in using some of these fast-growing species 175 00:10:22,883 --> 00:10:25,223 as bedding for chickens. 176 00:10:25,483 --> 00:10:27,698 So you can imagine that an endeavor like this 177 00:10:27,698 --> 00:10:30,264 could actually provide a farmer with income 178 00:10:30,264 --> 00:10:32,447 as their land transitions, 179 00:10:32,447 --> 00:10:34,880 help promote water quality, 180 00:10:34,880 --> 00:10:37,645 and prevent species invasions. 181 00:10:40,295 --> 00:10:41,920 These are all great ideas. 182 00:10:41,920 --> 00:10:45,542 But as we think about the changing face of farming 183 00:10:45,542 --> 00:10:47,072 along our coastlines, 184 00:10:47,092 --> 00:10:51,726 it will be critical to involve farmers at every step of the way. 185 00:10:51,746 --> 00:10:53,441 We have to ensure 186 00:10:53,461 --> 00:10:56,641 that there is a market that they can tap into 187 00:10:56,641 --> 00:10:58,242 and that we take into account 188 00:10:58,252 --> 00:11:01,463 their farming heritage and wealth of knowledge. 189 00:11:01,773 --> 00:11:06,874 So that is, scientists can't just come in and tell farmers what to do 190 00:11:06,874 --> 00:11:10,602 without understanding where they're coming from 191 00:11:10,602 --> 00:11:14,071 and leveraging their generations of expertise 192 00:11:14,071 --> 00:11:16,833 and understanding their financial constraints. 193 00:11:17,323 --> 00:11:18,686 For example, 194 00:11:18,696 --> 00:11:21,286 the equipment that's needed to grow that potato 195 00:11:21,286 --> 00:11:26,117 is very different than the equipment that's needed to grow soybean, 196 00:11:26,117 --> 00:11:27,740 such as seen here. 197 00:11:28,300 --> 00:11:32,100 And so my team is dedicated to working very closely with farmers 198 00:11:32,100 --> 00:11:35,096 in order to make sure that we are designing management solutions 199 00:11:35,096 --> 00:11:38,967 that work for them now and also in the future. 200 00:11:42,047 --> 00:11:43,681 In some cases, 201 00:11:43,681 --> 00:11:49,376 we have already lost large swaths of coastal timber plantations, 202 00:11:49,376 --> 00:11:52,161 forests, and farms 203 00:11:52,161 --> 00:11:55,897 to the invisible flood of saltwater intrusion. 204 00:11:56,177 --> 00:11:59,594 We didn't know that it was coming until it was too late. 205 00:12:00,294 --> 00:12:03,843 But that doesn't mean that we should give up hope. 206 00:12:03,843 --> 00:12:08,556 We can facilitate the transition of these areas into marshes, 207 00:12:08,556 --> 00:12:12,138 marshes that are filled with native grass species 208 00:12:12,138 --> 00:12:17,289 and marshes that can serve as sponges for sediment and agricultural inputs, 209 00:12:17,289 --> 00:12:19,066 like fertilizers. 210 00:12:19,076 --> 00:12:21,767 These marshes can promote environmental health, 211 00:12:21,767 --> 00:12:25,554 which means they can support a thriving crab industry, 212 00:12:25,554 --> 00:12:30,295 and they can also provide nesting habitat for many endangered species. 213 00:12:31,135 --> 00:12:35,633 Marshes are also very good at storing carbon. 214 00:12:35,633 --> 00:12:39,616 And coming up with strategies to store more carbon on our landscapes 215 00:12:39,616 --> 00:12:41,816 is actually a key way 216 00:12:41,816 --> 00:12:45,210 that we can fight climate change in the long term; 217 00:12:45,210 --> 00:12:49,082 that is, by sucking carbon dioxide out of the atmosphere 218 00:12:49,082 --> 00:12:53,330 and storing it in plant tissues and storing it in soils. 219 00:12:53,330 --> 00:12:59,296 And so, my team was really interested in the carbon storage potential of farms 220 00:12:59,296 --> 00:13:01,945 as they transition into marshes. 221 00:13:01,945 --> 00:13:05,044 And it turns out the potential is huge. 222 00:13:06,760 --> 00:13:08,793 So I’m going to show you some data - 223 00:13:08,793 --> 00:13:11,649 because I’m a scientist and I can't help myself. 224 00:13:12,159 --> 00:13:17,090 So on the y-axis, we have soil carbon concentration, 225 00:13:17,090 --> 00:13:22,756 and the x-axis is a transect across a salt-damaged field. 226 00:13:22,756 --> 00:13:25,405 So imagine you're standing in the center of a cornfield 227 00:13:25,405 --> 00:13:28,024 and you're looking out towards the marsh. 228 00:13:29,504 --> 00:13:32,787 These are the levels of carbon in your soil. 229 00:13:32,787 --> 00:13:37,319 So in the tidal marsh, we have very high concentrations of carbon. 230 00:13:37,319 --> 00:13:39,069 That's to be expected. 231 00:13:39,069 --> 00:13:43,754 What is incredible is how much carbon is on the edge of those fields, 232 00:13:43,754 --> 00:13:45,552 in the field edge and the ditch bank, 233 00:13:45,552 --> 00:13:49,115 where you're starting to see some of that saltwater intrusion. 234 00:13:49,115 --> 00:13:53,282 In fact, the carbon levels are five times higher 235 00:13:53,282 --> 00:13:56,047 than they are in that crop area 236 00:13:56,047 --> 00:13:59,757 where the corn plants are struggling to survive. 237 00:14:00,497 --> 00:14:02,847 So on these fields, 238 00:14:02,847 --> 00:14:06,762 where it's becoming increasingly challenging to turn a profit, 239 00:14:06,777 --> 00:14:11,644 we could actually allow the migration of marshes into these farm fields. 240 00:14:11,644 --> 00:14:16,742 Maybe we even help them out a little bit by planting some native grass species. 241 00:14:16,742 --> 00:14:17,910 If we did that, 242 00:14:17,910 --> 00:14:20,442 we could store a lot of carbon, 243 00:14:20,442 --> 00:14:22,857 and we could store it very quickly. 244 00:14:23,207 --> 00:14:26,847 So in some cases, consider a situation 245 00:14:26,847 --> 00:14:30,912 where we are subsidizing the farming of carbon 246 00:14:30,912 --> 00:14:33,120 rather than the farming of corn. 247 00:14:36,710 --> 00:14:39,195 This work is, in a way, 248 00:14:39,195 --> 00:14:42,543 a struggle to stay ahead of a moving target, 249 00:14:42,543 --> 00:14:46,059 and to do that requires coordination and collaboration 250 00:14:46,059 --> 00:14:48,827 among researchers from many different disciplines. 251 00:14:48,827 --> 00:14:50,626 And so, we're working together 252 00:14:50,626 --> 00:14:54,075 to develop these first ever maps of saltwater intrusion 253 00:14:54,075 --> 00:14:57,914 to understand where it is and also where it's headed. 254 00:14:58,374 --> 00:15:02,531 And every day, my team is working to gain a deeper understanding 255 00:15:02,531 --> 00:15:05,629 of what crops are likely to grow, 256 00:15:05,629 --> 00:15:07,989 how we can store more carbon, 257 00:15:07,989 --> 00:15:10,708 and how we can protect water quality 258 00:15:10,708 --> 00:15:13,086 as our coastlines transition. 259 00:15:15,236 --> 00:15:20,768 The truth is we aren't going to halt climate change in its tracks. 260 00:15:20,768 --> 00:15:25,434 We can't slow the rising seas, at least not in the short term. 261 00:15:25,934 --> 00:15:29,981 To do that will require coordinated global action. 262 00:15:30,381 --> 00:15:34,208 But that doesn't mean that we can't do anything about it. 263 00:15:34,208 --> 00:15:37,248 When the world is sick, we wear masks. 264 00:15:37,248 --> 00:15:40,205 We adapt to this new normal. 265 00:15:40,205 --> 00:15:45,159 And we can help our neighbors, our communities, and our planet 266 00:15:45,159 --> 00:15:48,228 if we manage the transition to the new normal 267 00:15:48,228 --> 00:15:51,660 using science-based solutions. 268 00:15:52,510 --> 00:15:56,778 Climate change is impacting nearly every single agricultural system 269 00:15:56,778 --> 00:15:58,159 on the planet. 270 00:15:58,639 --> 00:16:02,413 Everyone at some point will have to adapt, 271 00:16:02,873 --> 00:16:07,971 so why not be on the cutting edge of climate change adaptation? 272 00:16:07,971 --> 00:16:11,488 We are already building these maps of saltwater intrusion 273 00:16:11,488 --> 00:16:14,921 to understand where it is and where it's headed, 274 00:16:14,921 --> 00:16:17,220 and we are already working together 275 00:16:17,220 --> 00:16:20,560 as researchers, as farmers and as policy makers 276 00:16:20,560 --> 00:16:23,851 to design these science-based solutions. 277 00:16:23,851 --> 00:16:27,584 And we have the opportunity to make changes now 278 00:16:27,584 --> 00:16:30,040 that can help prevent climate change 279 00:16:30,040 --> 00:16:31,670 in the long term. 280 00:16:32,041 --> 00:16:34,748 We could farm carbon and not corn. 281 00:16:35,718 --> 00:16:37,916 And what's remarkable to me 282 00:16:37,916 --> 00:16:42,780 is that the state of Maryland could actually be a global leader 283 00:16:42,780 --> 00:16:45,114 in climate change adaptation, 284 00:16:45,114 --> 00:16:49,793 especially when it comes to sea level rise and saltwater intrusion. 285 00:16:49,793 --> 00:16:52,710 We are already building the tools we need, 286 00:16:52,710 --> 00:16:56,111 and we are already working together towards this goal. 287 00:16:56,111 --> 00:16:59,248 So, I’d say, let's do it.