For The Wild - April 17, 2015


MARY ELLEN HANNIBAL on the Spine of the Continent ⧸18

Topics
TOM WALDO on Fighting For Alaska's Ancient Rainforest ⧸19

Episode Stats


Length

58 minutes

Words per minute

143.57

Word count

8,371

Sentence count

302

Harmful content

Toxicity

2

sentences flagged

Hate speech

4

sentences flagged


Transcript

Transcript generated with Whisper (turbo).
Toxicity classifications generated with s-nlp/roberta_toxicity_classifier .
Hate speech classifications generated with facebook/roberta-hate-speech-dynabench-r4-target .
Topics generated with Qwen2.5-3B-Instruct.
00:00:00.000 It's high on a mountain, the warm winds are blowing, and where the winds are blowing to,
00:00:26.400 There ain't no way of knowing
00:00:29.400 The mountain grass is short
00:00:32.680 It's dry and close to burning
00:00:35.440 Crying out for water
00:00:38.680 As the season's turning
00:00:41.820 Sweet smell the pines
00:00:46.720 Tall western cedar
00:00:48.360 Drifting on the wind
00:00:51.840 Through the mountains like a river
00:00:54.340 Hello, my name is Ayanna Young, and I welcome you to Unlearn and Rewild, where we explore
00:01:01.180 radical ideas relating to earth renewal.
00:01:04.420 Today we're speaking with Mary Ellen Hannibal, who is a Bay Area writer and editor, focusing
00:01:09.960 on science and culture.
00:01:12.620 Hannibal's book, The Spine of the Continent, is about a social, geographical, and scientific
00:01:18.220 effort to save nature along the Rocky Mountains.
00:01:21.980 The Spine of the Continent also chronicles landscapes, people, critters, and issues along the spine.
00:01:29.640 A former book review and travel editor, Hannibal is chair of the California Book Awards.
00:01:35.620 She was a 2011 Alicia Patterson Foundation Fellow.
00:01:39.740 She is a recipient of the National Society of Science Writers Science and Society Award 2012
00:01:45.460 and Stanford University's Knight-Riser Prize for Western Environmental Journalism.
00:01:52.240 Hello, Mary Ellen, and welcome.
00:01:54.560 Hi.
00:01:56.020 So I'd like to start off with a foundational question.
00:02:00.140 What does the old way of conservation look like, and why is it not working?
00:02:05.540 For example, Yellowstone National Park.
00:02:09.020 Well, you know, this is really, really on my mind quite a bit these days.
00:02:13.300 So going to the spine of the continent to one of the major, of course, messages of the spine of the continent is that when we established protected areas like Yellowstone National Park 100 years ago, we thought we would put our arms around a protected area, limit human impacts within that protected area, and then we would be protecting the nature within that area.
00:02:36.640 And what conservation biology figured out is that that doesn't work for nature.
00:02:40.860 Nature needs to be connected in order to thrive.
00:02:44.300 So I look at the connections of nature in two ways, horizontal and vertical.
00:02:49.760 And this is kind of a false construct, but I think it sort of helps.
00:02:53.440 And horizontal, to me, describes species movement across the landscape.
00:02:58.560 So in Yellowstone, you have wolves and grizzly bears that they stake territorial ranges that
00:03:04.260 are much larger than those parks can possibly contain.
00:03:08.980 And in the case of the grizzly bear, we have about 660 grizzlies in Yellowstone.
00:03:13.460 If those grizzly bears don't breed with others of their own kind in other populations that are farther north and up into Canada,
00:03:23.700 then the grizzly bears in Yellowstone will have genetic inbreeding and they will go extinct.
00:03:29.020 And wolves similarly need to come and go in the park and interbreed with other wolf populations to keep their genetic viability.
00:03:37.160 and wolves especially those top carnivores typically mountain lions are
00:03:44.040 like this and jaguars are like this they need very large territories because they
00:03:48.540 need to go out and stake new grounds away from their natal home so that's
00:03:56.100 horizontal across the landscape and that's very difficult right because we 0.86
00:04:00.160 have all these roadways we have human habitations we interrupt the ordinary
00:04:04.820 the thousands of millions of years that these animals had this place to themselves.
00:04:10.640 But we've also interrupted the vertical interconnections between species.
00:04:16.180 So going back to Yellowstone, you know, there's this really fantastic case study of species
00:04:22.600 interactions between the wolf and the aspen, the cottonwood and willows, the vegetation
00:04:29.900 of Yellowstone and then everything in between especially the ungulates or the browsers and
00:04:36.940 that's the elk the deer and the cattle and when you have paradoxically it might seem when you have
00:04:42.620 wolves on the landscape you actually are protecting the greenery more because the the browsers don't
00:04:49.660 eat it all the way down to the ground they look over their shoulders every two minutes to see if
00:04:54.580 wolf is coming and they keep moving. And this movement allows the greenery to grow sufficiently
00:05:01.440 that then beaver, for example, can use it to create their lodges and their dams. And when
00:05:08.120 beavers do that, they slow the flow of water through the waterways and many more native fish
00:05:15.300 can thrive there. Many more species of bird come in, reptiles, amphibians, bugs. The impact goes
00:05:22.340 all the way down into the soil. So when you have wolves on the landscape, you actually are
00:05:27.560 sequestering more carbon in the soil. And this is where the biological carbon cycle, where you're
00:05:35.180 having animals eating animals, eating plants, intersects with the atmospheric and geological
00:05:41.500 carbon cycles. So the atmospheric carbon cycle, of course, being where we're experiencing climate
00:05:46.860 change and then the geological carbon cycle where we have our very long processes like
00:05:53.440 uplifting of mountains but you know we are taking stuff out we're taking this fossil fuels out of
00:06:00.100 the geological carbon cycle and putting it up into the atmospheric carbon cycle which is disturbing
00:06:05.800 the biological carbon cycle and there you have your unholy mess that we find ourselves in now
00:06:11.980 so this is also you know brings up this point there's been a lot of talk around here recently
00:06:18.640 the last couple of weeks about jonathan franzen's article in the new yorker recently in which he
00:06:24.420 sort of decried the focus on climate change as distracting people from from more immediate
00:06:31.660 conservation goals and um i think he has a point you know we do focus so much on on climate change
00:06:38.900 that it's almost as if that's our only problem it's not our only problem in fact EO Wilson just
00:06:45.360 two weeks ago at Berkeley he was at a conference for the national parks and he said he basically
00:06:52.540 addressed this issue and he said you know if we only change the atmospheric carbon cycle
00:06:59.160 disturbance of carbon of of climate change we still will have an ecological meltdown
00:07:07.520 because we're experiencing a sixth mass extinction of plants and animals and this biological meltdown
00:07:16.300 he points out is is fast accelerating and if we lose the species we lose the whole system
00:07:24.060 so if you just fix climate change you don't fix the problem of extinction because we're really
00:07:30.460 mostly losing plants and animals to habitat loss but then this is all complicated because climate
00:07:36.080 change actually changes habitat. And this is something you see in the ocean. So the ocean is
00:07:42.720 becoming inhospitable to some species that have lived there. We have this massive sea star die
00:07:48.480 off going on here, right off the coast of the entire west coast. It's partly due to climate
00:07:55.380 change. There's no doubt about it. It's too much CO2 in the water. And so this is where we can't
00:08:01.500 really uncouple climate change from habitat loss it's all happening but we do have to approach
00:08:06.900 both things at the same time but the spite of the continent is really about how we understand
00:08:13.320 species extinctions and what to do about them and what to do about them is to connect and keep
00:08:20.140 restore connections that have been lost between habitats and on a horizontal level so that can
00:08:27.160 sometimes mean making a highway overpass so that large carnivores can get from one place to the
00:08:31.860 other. And it also means healing those connections in a vertical sense between species. So that means
00:08:38.720 in some cases, and there's no one size fits all in nature, but in some cases, as in Yellowstone,
00:08:44.940 it meant bring back the wolf to bring back the health of the river. I mean, it's just kind of
00:08:51.320 wild, how nature is so deeply interconnected. Wow, that was beautifully said. Thank you for
00:08:59.360 speaking on behalf of the necessity of biodiversity. And now I'd like to move on to
00:09:06.040 another foundational question. What is the spine? And can you take us through some key points of
00:09:12.540 its history regarding the Homo sapien migration and the geographic territorial understanding of
00:09:20.080 this area? Well, I'm so delighted to, because it's just really this epic, you know, landscape story.
00:09:27.480 So the spine of the continent refers basically to the whole Rocky Mountain Cordillera, which is this
00:09:33.000 huge mountain range that extends from Canada and up in the Yukon all the way down into Mexico.
00:09:39.800 And it really defines the entire continent of North America. And actually, then if you go down
00:09:45.580 into South America you've got the Andes that do a similar thing in defining South America and
00:09:52.100 there's really kind of a whole connectivity between North and South America along these
00:09:56.160 mountain ranges. So about approximately and this is always paleontologists and archaeologists are
00:10:02.600 always moving this this marker around but approximately say 13 to 14,000 years ago
00:10:09.980 the first humans came over to North America from across the Bering Strait.
00:10:16.940 There seems to have also been some humans who came on boats around South America,
00:10:22.880 the Panama Canal in those days, and started to inhabit North America.
00:10:29.040 And there were several pulses of people, and some came and went.
00:10:34.060 i think that you know we have the the oldest human settlements are in in arizona to the zuni
00:10:44.980 people and then there were subsequent waves of people that came over and inhabited the whole
00:10:53.540 continent with what we call you know native americans now so the thing about the spine of
00:11:00.000 the continent that makes it very important for conservation biology is that first of all mountain
00:11:05.720 ranges are very important for conservation you know if you go from here in california up to
00:11:12.380 alaska you'll find a big range right a big range shift of the kind of vegetation you find
00:11:17.960 if you go up a mountain range from the top of a mountain to the bottom of a mountain you will
00:11:24.120 find a similar elevational gradient of different kinds of biomes and so mountains have all sorts
00:11:32.500 of different what what scientists call heterogeneous or different kinds of habitat built into them
00:11:38.460 and especially with climate change as species are seeking to remain in a comfortable temperature and
00:11:44.320 precipitation envelope for themselves mountains provide refugia they provide places where you
00:11:51.280 can find microclimates if you're a species that needs one also the the continental divide there's
00:11:57.820 sort of the heart it's called the crown of the continent is up in canada where there's a confluence
00:12:03.880 of river riverways that go to the east and the west and the north and the south and then the
00:12:11.060 continental divide this waterway comes down it's really kind of it's the central nervous system of
00:12:16.860 the continent. And here along the spine of the continent in the United States and in Canada and
00:12:23.240 Mexico, because it is so rich in biodiversity, you still have these iconic species in many places
00:12:29.920 that have been removed or extirpated in other parts of the country. So you still have wolves
00:12:36.340 and grizzly bears and wolverine and all sorts of creatures in the spine of the continent,
00:12:42.720 especially toward the northern part that you don't have anywhere else um so when you know in my book
00:12:50.560 i profiled michael sulle who is considered the father or grandfather of conservation biology
00:12:57.440 and he was one of a team of people really of big name names including eo wilson paul earlick
00:13:04.260 jared diamond uh reed nos is lesser known and he deserves a lot more credit than he gets
00:13:09.980 For these guys figured out that what nature needed to do was to be connected in order to be protected.
00:13:18.560 And then Michael was really impatient to actually save nature and not just talk about how to do it.
00:13:25.980 So he founded Wildlands Network, what's now called Wildlands Network, with Dave Foreman.
00:13:30.700 And Dave Foreman, and with Reed Noss, Dave Foreman was kind of a notorious eco-warrior who, he was a disciple, basically, of Edward Abbey's, who you might know from some of his wonderful books, including, what's the name of his desert one?
00:13:50.040 Desert Solitaire.
00:13:51.760 It's a beautiful book.
00:13:53.980 So they said, we've got to connect up landscapes.
00:13:57.660 And so Wildlands Network, which is this teeny tiny NGO, non-profit, still tries to make connections and support the idea of connectivity along the spine of the continent.
00:14:09.700 And they also train their attention on so-called other mega linkages on the continental United States.
00:14:16.660 So if you were to look at a map of the United States, and if you go online, Wildlands Network, you can see on their website where some of these other mega linkages are.
00:14:25.800 There's one along the Appalachian Mountains on the East Coast.
00:14:30.340 There's one that goes horizontally kind of across the top of our United States and the bottom of Canada.
00:14:38.340 And then another one, I don't think is on their map, another one here in California.
00:14:43.600 We really have a Pacific Wild Way here along the Pacific Coast Trail.
00:14:49.140 So these are places where plants and animals have gravitated to because there's shelter, there's a lot to eat, there's water.
00:14:58.880 And so those are the things that plants and animals need, and that's where they have been protected the longest.
00:15:05.460 Humans have built in the valley bottoms, and we've disturbed habitat in many more places,
00:15:11.780 but we can't build the same way in mountains, but we can in valley bottoms.
00:15:15.560 So there's more left of the mountains to protect.
00:15:20.540 So that's sort of the blueprint is the spine of the continent.
00:15:25.040 And in terms of the United States and the reason why I chose to focus the book on the spine of the continent
00:15:32.300 is that really we have more hope of actually connecting the spine of the continent
00:15:37.880 than we do some of these other megalinkages because it's a bigger landscape.
00:15:43.540 There's less development on it now.
00:15:46.860 There's more public lands, and there's, you know, really gigantic private land holdings,
00:15:53.220 but sometimes by people like Ted Turner, who are extremely environmentally aware and focused.
00:15:59.300 So, you know, like Ted Turner probably owns as much land as makes up a small East Coast state, you know, here in the West.
00:16:09.420 So there's really more of a chance of protecting the spine of the continent than there is, I think, of the other megalinkages.
00:16:16.720 Not that we should not work for the other ones as well.
00:16:39.420 Besides conserving land, what are some of the other restoration initiatives that are most
00:16:49.000 pressing for the spine? For example, the importance of roadless areas or building
00:16:55.600 overhead passes to allow for animal migration. The highway overpasses and underpasses to
00:17:01.860 allow for animal movement across the roadways is super important. For one thing, it's something
00:17:09.300 everybody kind of understands really quickly because you know we've all seen roadkill there's
00:17:15.620 a roadkill database that's run by this guy frazier schilling at uc davis and frazier told me that his
00:17:25.140 database of roadkill is the single largest database of species observations of any other
00:17:34.680 kind of database. Now that is sad news because that's all dead animals. But here's the other
00:17:40.980 thing about dead animals on roadways. They cost money. They cost insurance companies money. They
00:17:46.480 cause fatalities of people and destruction to private property, to cars. And basically we all
00:17:53.120 agree we don't want roadkill. So there's been a way to really be a win-win situation around getting
00:18:01.400 highway overpasses and underpasses built and planned for because whether you're a democrat
00:18:08.080 or republican whatever your attitude toward wildlife is you we all agree we don't like
00:18:13.580 roadkill so that's a super important way to actually talk about connectivity because if
00:18:20.760 once you start understanding that plant that animals in particular are moving across roadways
00:18:25.160 you start to say oh you know we're not the only people we're not the only creatures here
00:18:30.260 there are other creatures doing their thing and they're moving in their directions while we're
00:18:35.060 moving in ours and uh it makes i think you aware that we're it's not all about humans
00:18:41.280 and even though you don't see animals quite often because they don't want to be seen
00:18:46.100 they're still there and we are obliged to help them live their life and we actually really
00:18:52.060 depend on them living their life to live ours so that's a super positive um direction for for
00:18:59.780 restoring the spine of the continent. We have this really devilish problem about large predators
00:19:07.600 and there's a kind of a warfare going on in the west in certain states around wolves, grizzly
00:19:16.000 bears and there's just people who hate them and really want to kill them and other people who
00:19:21.920 understand that we can't do that and keep a healthy ecosystem. We need those top predators
00:19:28.100 on the landscape especially in places where there's not a lot of human habitation so you're not
00:19:33.560 putting people in danger of being hurt and and this i think is where on the top predator thing
00:19:41.440 i think the current usual strategies of conservation organizations i think could use a real revision
00:19:49.280 you're never going to change the minds of these people who want to kill wolves the fact is there's
00:19:57.420 Not that many of those people.
00:19:59.500 They have more influence than they should because of the way the political situation is in the Western states.
00:20:06.700 But I think if you took the idea of the healthy landscape, needing a top predator on it, and told that story, or as I tell it in The Spine of the Continent,
00:20:19.720 You took all of the people in Denver, Colorado, who have PhDs, who are super educated and aware and environmentally sympathetic, and you told them what was at stake here.
00:20:35.740 When you take the top predator away, degrade the ecosystem, it becomes very susceptible to climate change, to flooding, to fires.
00:20:46.780 it does not sequester carbon well you lose biodiversity when you lose that top predator
00:20:53.360 if you got all the people who are really capable of understanding this
00:20:57.900 to even get have that concept i think you'd see a political shift instead of trying to argue with
00:21:04.320 the ranchers which is a lot of what some conservation organizations do um let's try to
00:21:12.260 educate the broader populace in places like Denver, which have a big number of a highly
00:21:19.960 educated population. This is something where I see citizen science as also really helping to
00:21:28.160 give a big revision to how conservation nonprofits approach their work. Because citizen science can
00:21:36.720 start in the schools you can have kids tracking wildlife and understanding then as part of their
00:21:44.000 lesson plans why they need to learn how to track wildlife so we can understand where the wildlife
00:21:48.820 is moving so we can help continue connectivity when you teach kids this stuff then they bring
00:21:56.320 it home i mean it's really not the kids that need the lesson it's the parents so there's ways in
00:22:02.180 which to not keep having the same discussion over and over again in the West in particular,
00:22:07.700 but anywhere about how to approach these conservation issues.
00:22:13.260 I'd like to hear your thoughts about how cattle grazing is affecting the West.
00:22:17.800 Some believe that there's no problem with cattle on public lands and that grazing cattle
00:22:22.180 can even sequester carbon, while others are fervently against cattle because they believe
00:22:27.540 them to be detrimental to the landscapes, creating soil erosion and desertification
00:22:32.820 while releasing methane. In one of my previous interviews, I spoke with Courtney White from
00:22:38.500 the Kivira Coalition, who works with cattle ranchers in the southwest to conserve land and
00:22:44.920 sequester carbon through specific grazing management. So what are your feelings on the
00:22:51.000 whole cattle debate? I'd love for you to take us through the history of how cattle replaced bison
00:22:57.180 and became the major industry in the West that it is today.
00:23:01.220 You know, this is another subject where I feel like more people need to have more information
00:23:06.820 about how our public lands are being used.
00:23:10.700 I actually am a huge fan of Courtney White, and I mention him in The Spine of the Continent.
00:23:16.940 And I also talk just briefly about something called the Marin Carbon Project,
00:23:21.380 which is here in California in Point Reyes.
00:23:24.760 And this is a project that's really monitoring how to increase carbon sequestration by using cattle.
00:23:33.900 The thing is, is that what Courtney White is in favor of is a kind of cattle grazing called mob grazing, or what else do they call it?
00:23:45.880 Mob grazing, or just you basically move your cows around.
00:23:49.720 Oh, holistic rotational grazing?
00:23:52.700 Yes.
00:23:53.080 So this is when you do that kind of grazing, you can have a healthy ecosystem coexisting
00:24:00.620 and even being enhanced by grazers.
00:24:04.200 Now, in the spine of the continent, the thing is, you know, the entire West, there was this
00:24:10.760 huge influx of cattle as a way to kind of make manifest destinies stick.
00:24:16.960 We needed to have the West settled.
00:24:18.620 We needed people to stay put and have homesteads and create communities.
00:24:23.080 But we needed to give them a way to make a living.
00:24:25.700 So that was this huge influx of cattle so that people could become cattle grazers.
00:24:31.200 This is partly what started our whole obsession with eating beef.
00:24:37.960 And then that happened all over the West, even in places like the desert Southwest,
00:24:43.840 where probably there were no big grazers on the landscape historically,
00:24:49.320 and the landscape is simply not evolved to have cows on it.
00:24:55.000 So Mary O'Brien, who is a wonderful scientist with the Grand Canyon Trust,
00:25:01.120 she says, okay, there's just some places where we shouldn't have cattle.
00:25:05.380 Other places you can have cattle, but we also need to graze them properly.
00:25:10.360 And this is where they are not grazed properly.
00:25:13.440 The negative way is that these sort of absentee ranchers who put cattle out on their landscapes and don't move them and let them eat, eat, eat down, they degrade waterways, they degrade the landscape, they eat all the way down to the ground so there's no forage for other animals, there's nothing for beaver to use to create dams, and they have their methane and they destroy waterways.
00:25:38.960 That is something that could be, it really could be reformed through grazing regulations, forest service regulations, Bureau of Land Management regulations about how to graze on public lands.
00:25:53.120 And this is a big political quagmire.
00:25:55.560 This is where I feel like if more educated people understood what was happening on our public lands, there would be a pressure on these agencies to reform the grazing practices.
00:26:08.240 Now, it's just worth noting that when you read in the newspaper that the biggest single contributor to climate change is the livestock industry, that's really a different kind of cattle problem.
00:26:24.720 That's industrial agriculture.
00:26:27.080 And that is creating all sorts of horrible problems for other reasons.
00:26:32.740 But really what the problem is in the West is that we're degrading the landscape.
00:26:36.640 The amount of beef being produced on the West in these small grazing allotments is minuscule.
00:26:43.240 It's just simply not even a very big percentage, something very small percentage of overall beef production in the U.S.
00:26:51.100 Most of the beef production that is really detrimental is industrial agriculture.
00:26:56.680 And Courtney White is not talking about that either.
00:26:59.640 He's talking about ranchers in the West where he's right.
00:27:03.500 You want to keep ranchers ranching because then there's no development on that land.
00:27:08.860 You keep open spaces.
00:27:11.060 And on the edges of ranches and within ranches, you'll have habitat.
00:27:17.080 You'll have ungrazed patches of forest or meadows where lots of species can live.
00:27:26.340 And if you were to put a ski resort on that ranch, that would all be wiped out.
00:27:31.560 So we do want to try to keep ranchers ranching, but we also want to reform the way that they ranch.
00:27:39.200 I really appreciate you elucidating the many sides of this complex issue.
00:27:44.240 And to dive into the holistic grazing management a bit deeper, what are your thoughts on Alan Savory and his idea that grazing cattle can not only sequester carbon, but also stop desertification?
00:27:56.680 I mean, one of my critiques of Alan is his lack of sensitivity to desert landscapes that never historically had big grazers to begin with.
00:28:05.480 I'll say one thing about Alan Savory.
00:28:08.820 You know, Alan Savory deserves an enormous amount of credit.
00:28:12.420 And, you know, he's really a path-breaking leader in holistic, sustainable agriculture and ranching.
00:28:24.560 In not only my opinion, but in the opinions of other people,
00:28:28.140 Alan Savory takes the whole thing with the mob grazing a little too far.
00:28:32.520 He proposes that we'll never have the top predator back on the landscape.
00:28:37.620 And so in order to replace the effects of the top predator by inserting massive amounts of more cattle onto the landscape.
00:28:47.060 And he doesn't necessarily distinguish between where you could do that and where you shouldn't do that.
00:28:54.980 So he goes a little off, a little exaggerated on one end of it.
00:29:00.500 And I think, you know, he has a lot of good points, but he takes it too far.
00:29:07.600 But, you know, ranchers are, by and large, pretty hard-headed, reasonable people who are confronted every day with running a ranch.
00:29:15.920 So a couple of years ago, I was at a conference, and it was in honor of Alan Savory.
00:29:21.260 And Alan Savory spoke, and it was, you know, an audience of ranchers was listening.
00:29:26.180 and and they were really keen to hear about you know permaculture and moving the cattle around
00:29:33.160 and and then he kind of went on to what you need to do is triple the amount of cattle you have
00:29:39.180 and then they were all kind of like yeah well we ignored that part of what he had to say because
00:29:44.460 that's ridiculous and because you know they don't have money to go buy heads of cattle like that for 0.58
00:29:50.380 one thing. So he's a little trickier character, Alan Savory. He's very charming. He's got a great, 0.96
00:29:58.040 great South African accent. Well, that always helps.
00:30:20.380 the highway. Another animal I wanted to discuss with you is the beaver. I just loved reading your
00:30:31.660 sections on the beaver in the spine. You know, the Algonquin people have a creation story where
00:30:37.940 the continents were made by the beavers, digging up mud from the bottom of a globe-encompassing
00:30:43.960 ocean. At some point, the beaver, you know, this great ecosystem engineer fell from favor,
00:30:51.400 was vilified and nearly exterminated by white Europeans. Would you take us through some of the
00:30:58.960 critical things to understand about beavers and what the ecological impacts of their persecution
00:31:04.840 may have been on this continent? And what would happen here, especially in the drought-stricken
00:31:11.260 west if beavers were welcome back well those are just wonderful questions i mean when i was
00:31:17.360 when i was researching beavers for the spine of the continent i mean i felt like
00:31:22.560 getting on top of the building i live in and shouting out to everybody you can't believe
00:31:27.300 how important beavers are to the united states and canada and everything that you have here
00:31:32.060 is based on the backs of beavers because in fact it was really when um you know the pilgrims came
00:31:39.420 over from England and they settled in Massachusetts and were really on the brink of starvation
00:31:46.920 and just dying out when they were intersected with a Native American who taught them how
00:31:54.660 to hunt beaver.
00:31:56.240 And when they learned how to hunt beaver, a trade, a fur trade started for those pilgrims.
00:32:03.140 Now, there had actually been fur trading going on before the pilgrims came over.
00:32:09.020 So the Dutch had been coming and harvesting beaver fur, and I think the French, there
00:32:18.720 was a beaver trade that had started, and if you can remember, you know, 1600s, 1400s,
00:32:26.040 1500s, 1600s, there was no central heating for anybody in those days, and it was cold
00:32:31.520 in Europe, and the beaver has this incredible fur.
00:32:34.600 So the beaver is one of these amazing animals that's kind of a bridge between a terrestrial or an earthbound animal and an aquatic or water animal.
00:32:45.020 And it's partly because of this amazing fur that they have.
00:32:48.580 They can swim and stay warm and they have these amazing adaptations.
00:32:55.680 They have these like goggles that come down over their eyes so they can see underwater.
00:33:00.220 you know back in the day it was customary for Catholics not to eat meat on Fridays as part of
00:33:07.360 kind of a Lenten ritual but the Pope allowed you to eat beaver because it was felt that beaver were
00:33:15.320 a fish because they swim so they weren't even considered a mammal which they are
00:33:21.780 if you think about this I had never thought about this but if you're gonna if you're gonna
00:33:26.500 to colonize a continent, right? You are going to need to have an economy to do that with.
00:33:34.880 And we grow up, I think, learning about the tobacco growing in Jamestown and sugarcane
00:33:41.240 and then cotton. And that's all really very important to the development of the United
00:33:45.560 States. But really, much, much more fundamental was the fur trade. And over the centuries,
00:33:52.580 the native americans the french the british the dutch and then eventually what we call the americans
00:33:58.300 all interacted over this fur trade and at different times i mean for really long periods of time that
00:34:05.380 trade was dominated by different people including native americans dominated the trade over and over
00:34:11.940 again because they were the ones who really knew how to they knew where the beaver were and they
00:34:15.860 really were good at killing them. It also, yeah, I think, enlightens us a little bit of not to
00:34:22.920 romanticize Native Americans in such a way that, oh, they would never deplete natural resources
00:34:29.800 the way we do. Well, they did, too. They depleted their beaver also. And what nobody was understanding 0.96
00:34:36.260 is that beaver on the waterways change everything. So nobody understood you take the beavers off the
00:34:43.820 waterway you change the way the water works you change the hydrological carbon cycle when you
00:34:50.700 take beaver off because beaver are doing this thing they're actually changing the flow of the
00:34:57.780 water and that changes the temperature of the water it changes uh what can grow in it near it
00:35:05.460 and it changes you know the species interactions on the waterway so by the time you can actually
00:35:13.200 track the the fur industry moving west because what what they did is they extirpated or took out
00:35:19.500 every single last beaver off of every waterway and then they the the trade moved west and by the
00:35:26.180 time it got all the way out to california there was not going to be any more beaver left anyway
00:35:31.660 they took them all off but you know miraculously kind of it was figured out like we're not going
00:35:39.500 to have this to base our settlement our colonies on anymore we need something else we need another
00:35:47.060 economy that's when the cattle came in so the cattle came in after the after the beaver but
00:35:53.120 especially in the in the west here where we're really dealing with this horrifying drought
00:35:57.900 bringing beaver back to the waterways could just make an enormous difference i mean it's not so
00:36:04.940 easy to just do that because you know we have these dams and reservoirs and we have these
00:36:11.300 delivery mechanisms of water to communities and we can't just stop those i mean we need to keep
00:36:16.780 getting water to people to keep them alive but in many many places where there aren't where we're
00:36:22.600 not purchasing water for humans like in utah you could put beaver back on waterways in utah
00:36:29.220 all over the place and you would you would instantly basically it happens amazingly fast
00:36:35.720 you would restore these degraded landscapes and as we are hit by climate change we need the more
00:36:44.940 most resilient landscape possible that means landscapes that are have growing on them more
00:36:51.960 native species more dense interactions between species you want more native vegetation which
00:37:00.220 has been adapted to to climate shifts over millions of years in a way that you know invasive species
00:37:08.380 probably haven't been you want invasive species come in when the the landscape is degraded so a
00:37:15.740 landscape say that's degraded by over cattle grazing might be invaded by kentucky bluegrass
00:37:21.200 so that outcompetes the native plants because the native plants can't grow up because they're
00:37:26.760 constantly eaten down by the cattle so the kentucky bluegrass comes in and if there's a
00:37:32.920 large weather event which we're having more and more of like with flooding the whole all the
00:37:37.700 kentucky bluegrass is is rhizomous it's like a wall-to-wall carpeting of grass the whole thing
00:37:43.660 just rips up in a flood and all of that that dirt underneath it all that wonderful soil is washed
00:37:50.320 away. Whereas if that soil was planted, had native plants growing in it, they have much
00:37:57.460 deeper root systems that hold the soil in place in a flood. Similarly with fire, invasive species
00:38:04.940 are often, you know, kind of like adding gasoline to fire. They burn so quickly. The native grasses
00:38:12.840 and vegetation, some of them are adapted to come back in a fire cycle. Others, you know,
00:38:19.320 sometimes it's a little bit longer than we want to wait to see them again but even in
00:38:25.580 Yellowstone where you can see the effects of the huge fires that happened a number of years ago
00:38:32.320 there there's a succession that there's native plants come back it just it takes like 20 years
00:38:37.760 to start seeing that and we don't like to see burnt landscapes but sometimes they're necessary
00:38:43.260 so putting beaver back on the landscape would really really help the west in terms of
00:38:49.600 holding on to water having the water that comes down from snow melt percolate more slowly through
00:38:56.400 the landscape and sink into the landscape as it kind of comes down in rivers and creeks when you
00:39:02.900 have degraded rivers and creeks the water hurtles down quickly and just gets to the ocean or gets
00:39:09.500 dispersed way fast or it evaporates. And it's not as useful to the surroundings. So you want
00:39:17.100 those beaver on the landscape to slow the water flow down and to have the water percolate through
00:39:22.680 the whole system in a slower way to nourish the ground and everything that's on it. And the thing
00:39:28.740 is, you know, beaver, they are a hardy species. They're a rodent. They have survived mass
00:39:36.060 extinctions. They come back very easily. You can reintroduce them to places, and they do really
00:39:43.760 well. So it's really a really good tool in the climate change toolkit to be pro-beaver.
00:39:52.700 Why do you think beaver has not been reintroduced in places like Utah more fervently?
00:39:57.280 Are there any specific impediments?
00:39:59.980 Well, you know, what you have, I mean, Mary O'Brien is a scientist that I profiled in the
00:40:04.880 spine of the continent, and she works really hard to document how cattle grazing makes it
00:40:12.780 impossible to bring beaver back to certain places in the national forests in Utah, because there's
00:40:19.120 no habitat for them. There's no cottonwood, willow, or aspen growing by the sides of the
00:40:26.640 waterways because the cattle eat them too much. Now, so what she has to do is sort of prove this
00:40:32.760 to the forest service so what she does is she has citizen scientists in the summertime help her
00:40:39.720 document damage from cattle grazing and she shows those that data over time to the forest service
00:40:48.020 and the forest service takes that data and and uses it to help try to reform cattle grazing
00:40:56.160 practices. Now, what do you have opposing that? You have the gigantic bureaucracy of these agencies
00:41:03.900 in certain places. Here, where I am in San Francisco, both the Forest Service and the Bureau
00:41:09.200 of Land Management, which are federal agencies charged with natural resource protection of one
00:41:16.100 kind or another, they're pretty nimble and they're pretty enlightened about what they want to do on
00:41:22.200 the land they have the right ideas in in some places you have kind of you know a hand hand in
00:41:29.900 hand forest service or bureau of land management people kind of in the pockets of some ranchers
00:41:36.440 who just don't want to change anything and and they just stonewall any kind of change
00:41:41.800 and again it's not that many people but it's going through this tedious process
00:41:47.400 and it's going too slowly because we really need these landscapes restored as quickly as possible
00:41:53.540 so again you know it's very important for NGOs yes to keep working at trying to get those
00:41:59.340 grazing rules changed but more important perhaps to to let educated people understand what the
00:42:06.440 consequences are on the land and say you know a handful of people are standing in the way of you
00:42:13.000 and very negative effects of climate change.
00:42:16.520 And that's what I wish would happen more.
00:42:19.640 Ah, me too.
00:42:21.100 You know, it's time the public stood up
00:42:22.920 to take control of our public lands again.
00:42:26.040 So I've lived in the Pacific Northwest
00:42:28.060 for the past few years
00:42:29.400 and wonder how beaver would interact with salmon,
00:42:33.260 especially considering the droughts
00:42:35.060 and low water levels
00:42:36.980 in the rivers and creeks that support salmon.
00:42:40.180 Let's kind of take a big lens on that.
00:42:42.480 it's a really good question i mean i think you actually touched on a couple of really important
00:42:46.520 things with that question basically though historically you know no beaver ever interfered
00:42:54.260 with a salmon the salmon developed their incredible life history alongside beavers all over the place
00:43:03.380 today you know there it's true that in some places you know we fragmented where we have salmon left
00:43:11.700 where we have beaver left and in some places it's possible that a restoration for a certain
00:43:19.080 population of salmon would be negatively impacted by a beaver dam but and then maybe on that
00:43:28.500 particular landscape you would not want to have beaver until the salmon population got to a
00:43:33.900 certain level but you know and sometimes we're just going to have to make those decisions between
00:43:39.480 species on a local case-by-case basis, basically. So this kind of triage where you have to choose
00:43:47.140 between one species over another, we do have to get used to the idea of that because we have such
00:43:53.160 a degraded reduction of wildlife that in some places it is one population versus another.
00:44:00.560 But salmon and beaver are historically not at odds with each other and not in the way of each other.
00:44:09.480 The water comes swirling in
00:44:14.940 In the night while she sleeps
00:44:18.140 The moon is dark, the year is old
00:44:22.300 And in the flood tide creeps
00:44:25.900 The past will be washed away
00:44:36.320 The future is water. You are an orphan no more. You are the river's daughter.
00:44:53.100 Now back to the spine. What is the current status of the project as a whole,
00:44:58.160 and where are the efforts most concentrated?
00:45:00.840 Well, right now, Wildlands Network, which is this little tiny nonprofit that really works to promote, and what Wildlands Network does is it convenes lots of other nonprofits along the spine of the continent who are all interested in connectivity.
00:45:18.760 and they all try to coordinate their efforts
00:45:21.720 and look out for places on the landscape that might need protection
00:45:26.260 and nobody's quite paying attention to them at the moment
00:45:28.940 and they try to hold hands across the landscape.
00:45:32.180 A lot of the effort that I see is going into trying to change forest service rules
00:45:38.300 kind of on an administrative level is really where the focus is at the moment.
00:45:43.140 part of this is because of you know funding and non-profits they sort of have to go with
00:45:51.120 where their their opportunities are and shift with that when i was researching the spine of
00:45:58.200 the continent i i frankly i don't hide this i don't think that these non-profits can possibly
00:46:04.280 save nature in the kind of time frame and on the kind of scale that is needed at the moment
00:46:10.320 and when I was on the spine of the continent I was thinking what could possibly scale to address
00:46:18.180 this loss of biodiversity at the level at which it is going on and that's where I came to citizen
00:46:24.840 science and I participated in some citizen science projects on the spine of the continent and I saw
00:46:30.780 that people of all walks of life were coming together
00:46:36.340 to learn something about nature and to do something about it
00:46:41.360 and to volunteer their time.
00:46:44.380 So one wonderful example is in the Sky Islands.
00:46:48.420 One of my favorite nonprofits is the Sky Island Alliance.
00:46:51.780 And I learned how to track large carnivores in Mexico
00:46:55.740 with the Sky Island Alliance.
00:46:57.280 And what they do is they train citizens who are Tucson residents how to track wildlife.
00:47:05.120 And then those citizens go back.
00:47:07.380 They get a certificate.
00:47:08.740 It's a program.
00:47:10.060 And they're assigned a transect in Tucson.
00:47:12.700 Now, Tucson is a small kind of old city that has a suburban sprawl around it.
00:47:18.300 But it also has a lot of nature kind of all the way up to the back gates of Tucson.
00:47:23.320 And it's surrounded by this, you know, incredible, beautiful Sky Island region of the nation that I just, I love it there.
00:47:32.680 It's so beautiful.
00:47:33.980 Something like half of all native bird species in the continental United States are in the Sky Islands.
00:47:41.040 I recommend visiting there.
00:47:43.040 Go to Mountain Lemon and take a hike.
00:47:44.620 It's just so fabulous.
00:47:45.680 So what's happening is large carnivores, jaguars and ocelots are moving north from Mexico back and they're reclaiming some of their historic range.
00:47:58.600 So jaguar used to be found as high as Monterey, California, not that long ago.
00:48:05.200 so what the sky island alliance is doing is trying to see where are these animals moving
00:48:10.520 and how can we protect those passages those corridors and with the data that citizen
00:48:18.060 scientists have gathered about where animals are moving the sky island alliance has succeeded in
00:48:24.720 getting plans underway for highway overpasses and underpasses and i see that's conservation
00:48:30.980 happening. They actually have outcomes. That's a conservation outcome. I find that a lot of the
00:48:36.940 administrative stuff going on with changing forest service rules is not really having a conservation
00:48:42.160 outcome. We need to protect landscapes and species. We need to do that right now. And
00:48:49.400 rulemaking is very important, but there's more urgent things to attend to, I think.
00:48:55.520 but the thing about citizen science is that today with your smartphone you can take an observation
00:49:03.460 like say of a mountain lion paw print and you can geolocate it date time latitude and longitude you
00:49:12.460 can make a precise observation of where that exists and you can show that to somebody and
00:49:19.560 that can be verified so it puts the power of darwin in your hands darwin went around you know
00:49:26.680 to the south america to the galapagos and he noticed what species lived where and in what
00:49:34.560 amounts and in what relationship to each other this is the question we are still asking we don't
00:49:39.800 have that perfect information yet and this is what we need to know so that we can protect where they
00:49:45.800 are and where they're going with climate change. So citizen science is a way for people to get
00:49:50.520 involved. Wherever you live, you can look at citizensci.org. There's tons of programs. Right
00:49:59.300 now, you can join something called inaturalist.org. You can get an account and you can start making
00:50:05.660 species observations wherever you live. And you can take a look on inaturalist for projects
00:50:11.640 because there's all kinds of different projects you could participate in on iNaturalist just with
00:50:16.820 your smartphone or your iPad or with a camera and a computer that you would upload the photographs
00:50:23.020 to later. I love how citizen science empowers us to take back the knowledge and ultimately
00:50:29.820 the control of our homes and bioregions. It's so easy to feel debilitated with all of the
00:50:36.600 destruction happening. But to have this tool, every person can be an integral part of conservation.
00:50:44.180 It's just so exciting to imagine. You mentioned your new book is about citizen science.
00:50:50.640 Could you give us a sneak peek? My new book about citizen science is focused a lot on California
00:50:57.420 and the Bay Area because part of being an eco-citizen is the power of place. Where do you
00:51:05.100 live? Who else lives there with you? What are the processes going on where you live? And you know
00:51:12.240 what, we all live in places rich in species and rich in biodiversity and rich in historic
00:51:20.680 species interactions that may not be here now, but may be possible to reintroduce. So I mean,
00:51:28.240 And my new book is also just a journey for myself through kind of the hero's journey
00:51:35.000 as Joseph Campbell framed it to try to understand how people can live, you know, profit both
00:51:44.600 biodiversity and humanity at the same time.
00:51:47.240 I have some despair at going through what E.L. Wilson calls this bottleneck that we're
00:51:52.680 in right now of overpopulation and environmental degradation.
00:51:56.300 But I do see that this bottleneck is also what Joseph Campbell would call the threshold, that the hero crosses over, and that we can change ourselves and how we orient ourselves to the world, to the earth, by becoming citizen scientists.
00:52:13.020 I will say that I spent some time, I had an opportunity to really devise how citizen science could be used as a tool to achieve the spine of the continent.
00:52:23.320 and here's my concept the spine of the continent is all about connectivity so what i would envision
00:52:30.620 for the spine of the continent to kind of circumvent all of these political quagmires
00:52:35.100 that people get into and trying to to change grazing practices or to try to do this or that
00:52:40.660 is have some hubs in denver and tucson somewhere in canada where you had sort of citizen science
00:52:48.460 central locations and people could come like let's say you did this in tucson and people could learn
00:52:54.120 how to track wildlife but they could also learn how to watch for birds they could learn um how to
00:53:00.660 use something called nature's notebook this is nature's notebook tracks phenology or the coming
00:53:06.220 of spring and animals going in and out of hibernation and pollination all the interactions
00:53:12.140 between nature this wonderful program called nature's notebook you can also just join that
00:53:17.760 right today online allows you to do that. And then what I would like to see is have these hubs
00:53:25.480 have visualizations on a website. So let's say it was Tucson and you could go onto your website and
00:53:31.180 say, where are the ocelots today? Where are the jaguar? Where are the hummingbirds? And what's
00:53:37.820 coming into bloom? Where are the invasive species? Is it the time of year that it's the most
00:53:43.780 productive to try to mow that down right now. And then I think people would start to see patterns
00:53:50.260 in nature themselves. They would connect the dots that, you know, sometimes scientists don't
00:53:56.100 connect the dots between what's happening in one place and another, or between what's happening
00:54:00.620 with one species and another. And we could keep tabs on that in real time. And then ultimately,
00:54:07.140 what if you had a website where you could look at what's happening in Tucson, you could also look
00:54:11.660 what's happening in Colorado what's happening in Montana and and start to make really bigger
00:54:17.260 regional and continental scale observations so to give you an example of what that might reveal
00:54:23.100 in Colorado we have a big problem for them because of climate change is causing snow melt
00:54:30.700 to melt faster on the tops of the mountains so what that is doing is it's making spring come
00:54:37.620 earlier because the flowers are cued to bloom when they get that water starting to melt so the
00:54:46.740 trouble with that is that nobody gave the hummingbirds or the migrating birds the memo to
00:54:52.540 come at a different time so they come when they used to come but now they're coming and they're
00:54:57.620 sometimes missing their food source then there's a hard frost that happens in colorado and that's
00:55:04.240 killing the buds that have come out because they thought it was spring already.
00:55:09.300 And then, to add to this sort of devilish thing of climate change doing this,
00:55:16.100 in years past, there's been this dust problem.
00:55:20.780 So this is a problem originating in Arizona,
00:55:23.360 where you have ATV activity and development breaking up the desert floor.
00:55:30.140 the desert floor is covered with this this very delicate but very strong crust that holds the
00:55:36.660 dust in place but when these atvs go over it it breaks it right they have these gigantic dust 0.91
00:55:43.180 storms in phoenix but that dust goes up into the atmosphere and it goes and lands on the
00:55:50.140 mountaintops in colorado because it's dark it changes what they call the albedo or the
00:55:56.300 reflectiveness of the snow. And just like, you know, when you're really hot outside, you want
00:56:00.440 to take off your black shirt and have a white shirt on. The blackness actually makes the snow 0.99
00:56:06.520 melt faster. And that's when we start to have a global, a regional, continental, local, regional,
00:56:12.940 continental conversations about how what we do in our local places have regional impacts
00:56:18.860 and have continental impacts. And then that's how we start making the best decisions
00:56:24.020 about how to manage our human activities
00:56:28.160 so that nature can thrive everywhere.
00:56:31.380 Wow, I absolutely agree
00:56:33.700 that if people felt the effects of biodiversity loss
00:56:37.120 closer to home
00:56:38.060 and understood that they could personally do something about it,
00:56:42.360 then we would have an epic movement on our hands.
00:56:46.580 Well, thank you, Ayanna.
00:56:47.740 And I really appreciate your interest in it
00:56:51.700 and your good comprehension of how nuanced it all is.
00:56:55.780 And it's something we just need to really spread the word about.
00:57:04.360 Thank you for joining us on Unlearn and Rewild.
00:57:07.680 Our first music selection was Stick Game Song
00:57:10.760 by the Bad Canyon Well-Pinnett Singers from Washington State.
00:57:15.060 Then Colorado Song by the Ozark Mountain Daredevils.
00:57:18.500 And lastly, The River's Daughter by Sharon Krauss
00:57:22.220 Our theme song is Like a River by Kate Wolf
00:57:25.700 Production was by March Young
00:57:48.500 Thank you.