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An interview with science writer Melissa L. Sevigny about Brave the Wild River: The Untold Story of Two Women Who Mapped the Botany of the Grand Canyon

In late June 1938, three small boats pushed off from the banks of Green River, Utah, with plans to run the raging Colorado River through the Grand Canyon, all the way to Lake Mead. In addition to Grape Nuts, a bottle of Four Roses whiskey, and the latest USGS survey maps tied up with a “lucky string,” the boats carried something rather unusual on board: women.
At the time that Elzada Clover and her assistant, Lois Jotter, set out to become the first botanists to catalog the Grand Canyon, rumors still swirled that prehistoric creatures might lurk in its labyrinthine side canyons. Only 12 non-native expeditions had made the trip down the Colorado River since John Wesley Powell’s inaugural 1869 trip, and almost all of those rafters were men (the only woman to have attempted the journey vanished without a trace, along with her husband).
Though Clover and Jotter had serious work ahead of them, the contemporary coverage focused almost exclusively on the fact that the pair were women. Clover and Jotter weren’t much better respected by the men accompanying them; in addition to their significant scientific duties, they served as cooks for the crew on the entire 43-day journey. Even in spite of the distractions, though, Clover and Jotter’s catalog of over 400 species, including four previously unknown cactus species, remains the botanical ur-text of the region: “There was simply no other comprehensive plant list [of the Grand Canyon] published prior to the closure of Glen Canyon Dam,” explains science writer Melissa L. Sevigny’s Brave the Wild River: The Untold Story of Two Women Who Mapped the Botany of the Grand Canyon, an excellent new book about the river expedition. “Anyone who wanted to understand how the vegetation had changed — because of dams, exotic species, or any of the other human and natural influences at work on ecosystems in the past half-century — had to refer to Clover and Jotter’s work.”
Sevigny aimed to do Clover and Jotter justice by restoring them to their rightful place in science — and remembered history. But her book is also a rollicking, keep-you-up-at-night adventure story, told in utterly enveloping and immediate prose. Happily, Sevigny is earning her accolades; the book has received a rare triple-crown of early starred reviews from Publishers Weekly, Kirkus Reviews, and Booklist.
Brave the Wild River is out on May 23. Ahead of its publication, I had the chance to speak with Sevigny about Clover and Jotter, her writing process, and the continued uphill battle of women in the sciences today. Our conversation has been edited and condensed for clarity.
It was the fact that they were female scientists that drew me in. I always wanted to be a scientist; I wanted to be a geologist when I was a kid. I stayed on that path for quite a while and then I became a writer. I feel myself drawn to those stories because I suspect they might have changed things for me if I had known more stories about women in science when I was on that path.
I was surprised that I had never heard of these two women before, Elzada Clover and Lois Jotter. I’ve lived in Arizona all my life. I thought I knew a lot about its history, and yet somehow their names had never come up. Something about that really compelled me and the more I looked, the more I realized I couldn’t find what I was looking for, which was the story of the botanical work that they did. If I wanted to know that story, I was going to have to write it myself.
I was lucky enough right from the start to have the diaries of both of these women. A diary is such an immersive document, you really do feel like you’re in their heads. They’re writing things down that maybe they wouldn’t say out loud to anyone. And so I got to know them first through their diaries, which were wonderfully descriptive, and through letters, which are another really intimate form of communication. They had friends and family that they were very close with and that they would write these letters to on the trip. Whenever they could stop and post a letter, they would do that.
But I also had to do some other things to get into their heads and one of them was raft the Grand Canyon myself. I was incredibly nervous. I’d never done a whitewater rafting trip before. But I knew I was going to need to do that.
I went with a botany crew; we were tasked with weeding out an invasive species of grass. I wanted to do that so I could get a sense of what it was like to actually have to work as a botanist on the river. It was a small group: We had three boats and six people, just like they did. Of course, a lot of things have changed since 1938 about river rafting, but it did feel like a very immersive experience. I remember at one point, turning around to watch the boat behind me come through a rapid and I thought, ‘Oh, there’s Lorin Bell.’ That is a character from 1938 in my book; it was not, in fact, Lorin Bell. Time, it feels different down at the bottom of the Grand Canyon. And sometimes I did forget that it wasn’t 1938.
I’m grateful to them for having the foresight to keep the materials because while they were alive, people often told them — or gave them the impression — that what they did wasn’t that important. And if they had listened to those people, they wouldn’t have kept these materials. The fact that they saved their diaries, they saved their letters, they saved the newspaper clippings, and they donated them to these archives shows a lot of foresight and a lot of courage. I couldn’t have written this book if they hadn’t felt that way.
I did keep my own diary. I made sure I wrote in it every night. I also had a waterproof river map with me and I made notes on it before the trip of things I wanted to make sure I looked at. Because there would be a moment in the diaries where they would say, like, “We looked up and we saw the Desert View watchtower.” That would be the whole description. And so I knew, okay, stop and look up here so that you can describe what they were seeing.
When I got home, I typed up little bits of description out of my diary and I printed them out and I cut them up with scissors and then I actually would tape them into my draft and work at integrating them in.
That’s a direct quote from something that Lois Jotter said. I found out pretty quickly that both these women wanted to be remembered as botanists and they struggled because people wanted to talk about them as if they were the first women to succeed at rafting the Grand Canyon. Elzada Clover actually pushed back against that for a very specific reason: She would refer to herself as the first non-native woman to raft the Grand Canyon. She knew that the region had a long Indigenous history — Navajo and Hopi both have stories of running this river long before a white person came along and did it. Elzada knew that and so that was one reason she pushed back against that label.
But the second reason was that she did want to be remembered as a scientist, as a botanist, and I don’t think that really happened for her during her lifetime. But it’s difficult to center a story on science when the fact that they were women shaped so much of their experience. When I first dove into writing this book, I wanted to stay on the science and I really thought the sexism that they experienced would be a smaller thread — I thought it would be there, but I didn’t want it to center it. But as I was writing, it was impossible to ignore all of the obstacles they faced because they were women, so I hope I managed to strike the right balance and do justice to their story. It was a frustration for them when they were alive and it was a difficulty for me when I was writing, like “How can we tell this as a science story when they’re constantly being told that they shouldn’t be scientists?”
I think that’s absolutely right. And I’m glad you said you were shocked by that because I was fairly shocked too, and then I was embarrassed for being shocked. I expected going into it — this is embarrassing to admit — I really expected the sexism would almost be kind of funny, you know, it would be like, “Look at how those people acted in the 1930s!” And it is funny, but it’s a much darker humor than I expected because women are still facing all of these things today.
Maybe not to the same degree — it might be a little more hidden or subtle now — but all of the same things that [Clover and Jotter] experienced: struggle getting a job, struggle getting a promotion, struggle to be taken seriously, to have a seat at the table. Smaller things too, like people fixating on their physical appearance, telling them to smile. All of those things still happen to women today. I wasn’t expecting to write as much about that going into this book as I did, but I knew I had to because it was a very real part of their story and an extremely relevant part of their story.
It’s become only more relevant as time goes on. Clover and Jotter were the only people to make a formal plant list published in a Western scientific journal before Glen Canyon Dam went up. Today, there’s been a shift in thinking about the Colorado River. In their era, it was a given that people were going to build dams and they were going to harness this river. But today, a lot of people want to figure out how we can undo some of that damage, how we can protect the rivers, cultural values, and environmental values. And in that discussion, it’s hard to know how to do that if you don’t know what the river used to look like.
Clover and Jotter’s plant lists are just one part of that story. There’s also Indigenous wisdom about the plants along the river. There are other pre-dam records, but together it creates a picture of how this place used to look. Not saying that we can make it look like that again, but it gives us a way to pin our baselines in place so as we move forward, we can understand what kind of processes we need to restore this river. How do we want to protect it?
Yeah, so many things. Gosh. I was lucky to be able to track down some of their relatives and some of their former students and had really wonderful interviews with them. But there’s always questions, like, did you get it quite right?
There’s a key moment in the book where [Clover and Jotter] lose part of their plant collection and all I have are these little scraps and I don’t know exactly how that happened. Like, what were you planning? Who did you give that collection to, who was entrusted with it, and then what happened? I’d love to fill in those kinds of details.
I’d also like to ask them how they feel about how their botanical work has been used today. So many things changed from the 1930s to the present day and they lived through those changes, but because I don’t have as detailed records later in their life, I don’t know how they felt about what happened to the Colorado River, how they felt about how their work was used or ignored or misused over that time. I would just love to sit and talk with them about that. That’s one of many, many questions I would have.
This was a story about two ordinary women. I mean, I think they were remarkable, I wrote a whole book about them. But sometimes when we tell stories about science, we focus on the lone genius in the laboratory discovering a new element or breaking the laws of physics. Most science actually gets done in a much more incremental fashion. It’s about ordinary people who are passionate about some part of the natural world and they go out and they chase that curiosity and they move our knowledge forward. Just a little step. That’s what [Clover and Jotter] did and I think that’s how science works.
I started this conversation by saying that I wanted to be a scientist, right? I hope that young people or people of any age who are interested in science will see that it’s not something done by geniuses locked away in laboratories. Anybody can be a scientist.
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The U.S. Department of Agriculture confirmed on Wednesday that a New World screwworm — a flesh-eating fly that feeds on cattle, livestock, and other mammals — was found in a 3-week old calf in southern Texas. The screwworms aren’t dangerous to people, but they are a serious health risk to cows, and they are likely to drive already record-high beef prices even higher.
The finding reflects the defeat of what was, up until recently, one of my favorite “unknown” government programs. For decades, the United States government paid to breed millions of male screwworms, blast them with radiation to make them sterile, and then drop them from planes into the rainforest at the narrowest stretch of the Panama peninsula. (Sarah Zhang, the bravura science writer at The Atlantic, wrote the ultimate story about this project back in 2020, which is how I learned about it in the first place.) These sterile male worms mate with female screwworms but produce no larvae, creating a biological border in Central America across which screwworms cannot pass, at least in theory.
That border was breached in 2022 — perhaps via infected livestock smuggled across the Darién Gap — and since then screwworms have been inching toward Mexico and the United States. They were hundreds of miles from the border last summer; now they seem to have crossed it. Once they’re inside the country, the screwworms will be difficult to cordon given that livestock move travel regularly as they move from ranch to slaughterhouse.
The U.S. government is on it — sort of. Brooke Rollins, the agriculture secretary, announced efforts last July to open a new factory in Texas capable of producing 300 million sterile screwworms. Regardless, re-eradicating the worms is going to be much harder than keeping them under control — the U.S. established the bio-wall in that narrow strip of Panama because it was most efficient, but eliminating the bugs at first required enormous air drops across the southern United States and the entirety of Mexico. That will require a bigger bug factory.
Screwworm isn’t the only historic pest that the American government has lost control of: Our measles eradication status is now also under review. New pests threaten, as well, such as the alpha-gal tick and Lyme disease.
I would highlight that the screwworm is a lesson about the reality of good governance. State capacity is not so different from managing the electricity system or, for that matter, cutting carbon emissions, in that there is little political reward for getting it right. Voters do not thank politicians when something bad doesn’t happen — except in the most obvious cases — and they broadly do not notice when difficult systems work. (Nor do journalists — or, for that matter, the algorithmic feeds that have partially replaced us.)
The screwworm may also point to the virtues of taking a more muscular — a more openly protean — approach to environmental engineering. For decades, the U.S. government really did succeed in squashing the screwworm, and while the ecological effects of the widespread and cheaper cattle farming that resulted are perhaps best left to another discussion, it does make me wonder: Should we consider trying the same thing for ticks? Mosquitos?
Quiet desperation, meet artificial intelligence.
Like many new parents, I devote considerable time to thinking about sleep and why it’s not happening. Should I have sung the bedtime song and then changed the diaper? Did the baby need a fourth nap, or was the mistake letting her take a third so close to bedtime? It came as a surprise the other day, then, when a fellow parent in my baby group revealed she isn’t overthinking the whole sleep schedule thing at all. “I asked ChatGPT to write my baby’s sleep plan,” she told us. “It’s validating!”
To this author, personally, outsourcing parenting decisions to the world’s most sophisticated Mad Libs respondent seems like one of the signs that we’re doomed. Sleepmaxxing mothers aside, a plurality of Americans agree with me. Per Heatmap Pro’s latest polling, 45% of voters are “pessimistic” about the long-term impact of artificial intelligence on their lives, with just 22% saying they’re “optimistic” and about a third saying they’re unsure.
Americans were even more negative about the perceived impacts of AI on “society as a whole” — more than half, 55%, said they were pessimistic, while just 17% said they were optimistic. Maybe “future generations” will have it better? Eh. Again, net pessimism outweighed optimism in our polling by more than 30 points (52% to 20%).
Look a little closer at who hates their life because of AI and you might be surprised. The youngest respondents in the survey (and those who will have to live with the tech the longest), were by far the biggest doubters. Respondents aged 18 to 34 reported the most pessimism of any major demographic about the estimated impact of AI on their personal lives, tied with women generally at net 33 pessimistic over optimistic. For AI’s impact on society as a whole, there was a 53-point spread in favor of AI making things worse (68% pessimistic to 15% optimistic), which is 15 points worse than the next most pessimistic age group, the 35- to 49-year-olds.
Seniors, by contrast, are a little more sanguine. Among the 65-and-over crowd, the pessimism gap was a comparatively small net 12. In fact, men over the age of 65 were the only major group to report being more optimistic than pessimistic on AI’s impacts on future generations (34% to 30%) and on their own lives (35% to 32%). By contrast, young women were among the most negative of all groups; nearly three in four women in the 18 to 34 range (73%) said they were pessimistic about AI’s impact on society, and the same group was net 62 under water on AI’s effects on future generations. (Our findings are in keeping with other polls that show a gender gap on the embrace of AI.)
Education, surprisingly, wasn’t a big difference-maker. People who attended college reported nearly identical pessimism about AI’s impacts on society and future generations as non-college-educated respondents. College-educated people were just a few points less pessimistic about AI’s impact on their own lives, 25% versus 29% for those who didn’t attend.
So who actually thinks AI is going to be a good thing? Black respondents were at least more evenly divided on the impact of AI on their personal lives (33% optimistic to 33% pessimistic), though they were less convinced that the technology is good for society or future generations (13 points net pessimistic). People who prefer a hands-off federal approach to AI are generally encouraged by the technology’s application in their own lives, at net 13 optimistic. But even the most AI-friendly group’s outlook dropped off when considering its implications on society as a whole (net 4 pessimistic) and on future generations (net zero).
Independent voters bristled more at AI’s impacts on their lives (pessimism net 32) than Democrats (net 30), and on the question of “society as a whole,” the bloc ran away with net pessimism of 48, compared to Democrats (net 45) and Republicans (net 27). Among Republicans, MAGA voters were net 25 toward pessimism about AI’s impacts on their lives — in spite of President Trump’s boosterism — compared with the even-more-pessimistic non-MAGA voters at net 34 pessimistic.
Are Americans just a half-glass-empty group to begin with? Well, maybe — the percentage of adults who told Gallup they anticipate having “high-quality lives in five years” declined to less than 60% in 2025, the lowest level in two decades of polling. And while this is Heatmap’s first year tracking AI optimism, in Stanford University’s 2025 Artificial Intelligence Index Report, an adjacent line of inquiry found that people are increasingly warming up to the technology, with the “share of individuals who see AI products and services as more beneficial than harmful [rising] from 52% in 2022 to 55% in 2024.”
At the same time, about a third of Americans in our polling worried that AI puts their jobs at risk; a mere 6% said they believe that “AI will create jobs across the country, and I expect my own career to benefit.” Hopefully, there are no baby sleep trainers among their numbers.
The Heatmap Pro poll of 4,118 American registered voters was conducted by Embold Research via text-to-web responses from May 15 to 28, 2026. The survey included interviews with Americans in all 50 states and Washington, D.C. The margin of sampling error is plus or minus 1.6 percentage points.
Current conditions: The southwest monsoon known as “hagabat” has started in the Philippines, dumping up to 4 inches of rain on the archipelago • A strong geomagnetic storm, ranked just two levels below the most powerful type of event of this kind, is underway, threatening radio signals, GPS, and other human instruments that are sensitive to shifts in the Earth’s magnetic fields • San Antonio, where the glorious New York Knicks defeated the Spurs last night, is bracing for rain through the weekend.
To put it in terms a movie lover could understand, President Donald Trump’s Iran War is drinking the U.S. government’s milkshake. Federal stocks of oil have dropped to their lowest level since 2004. Commercial crude stocks fell by 8 million barrels to 433.7 million last week, according to The Wall Street Journal. Unless the Strait of Hormuz reopens soon — which looks less likely now that Iran has called off negotiations with the U.S. and Israel — prices could hit $200 per barrel by summer, said Bob McNally, president of the Rapidan Energy Group consultancy and a former White House adviser. “You start to raise the risk of spillover into other sectors, the economy and financial system … it detonates fragilities in the broader economy and financial system,” he told the Financial Times.
Oklahoma Attorney General Gentner Drummond has filed a lawsuit to block construction of the United States’ first new aluminum smelter in half a century over concerns about the project’s ties to the United Arab Emirates and risks it poses to the state’s cattle industry. Century Aluminum had planned to build the smelter with $500 million from the Biden administration. But in January, as I told you at the time, the company overhauled the deal to partner instead with the Abu Dhabi-based Emirates Global Aluminum, which said it became interested in the project after Trump slapped 50% tariffs on the metal. The move comes after Trump endorsed Drummond’s opponent in this year’s Republican primary for Oklahoma governor.
In the 12-page litigation, the state’s top cop alleged that the smelter, planned for a site 30 miles east of Tulsa, would “leach air and water pollutants that would injure the health, comfort, repose, and safety of the people in the region,” Mining.com reported. “A primary aluminum smelter does not belong in a community’s backyard and its emissions do not respect property lines,” Drummond wrote in the lawsuit, which asks the court to block the project. His lawsuit also refers to the UAE, a close ally of the U.S. and by far the most liberal of the Gulf Arab kingdoms, as an “Islamic foreign monarchy.”
The Electric Reliability Council of Texas, the state’s grid operator, approved what E&E News called two “landmark sets of rules of rules” this week that would “shape the future of data centers in the state if finalized.” One package sets up new criteria and processes for bringing big electricity users onto the grid by reviewing them in batches. The other requires data centers and crypto mining operations to remain online during brief grid disruptions in a bid to avoid the cascading outages that downed the electrical system during 2021’s deadly Winter Storm Uri.
The changes come as opposition to data centers reaches critical new heights. Seven in 10 Americans now oppose server facilities built near their homes, according to a new Heatmap Pro released a poll this week that my colleague Robinson Meyer wrote up here. The backlash has grown so severe that former Representative Ben McAdams, a Republican from Utah, is facing serious pushback from his Democratic opponent for the state’s new 1st Congressional District over his small stake in the renewable energy component of a proposed data center in the area, according to the Salt Lake Tribune.
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Taiwan, if you’ll forgive the pun, is in dire straits. The self-governing republic that has functioned as an independent country since the losing side of the Chinese Civil War fled there in 1949, is almost entirely reliant on imported fossil fuels to keep the lights on and semiconductor fabricators churning out the hardware that makes the island so valuable to the global economy. That reliance only grew last year when the ruling Democratic Progressive Party, which has opposed atomic energy since its founding in the 1980s, completed the country’s nuclear phaseout, shutting the last of the island’s three functioning plants. The government in Taipei is now considering starting back up at least one of the old nuclear plants. But, as I told you earlier this year, it’s also looking to geothermal to make up the difference. On Wednesday, the Ministry of Economic Affairs announced the first government-led tender for geothermal, Think Geoenergy reported. The six-month process is meant to develop geothermal zones in Taitung County, on the island’s southeast coast.
The Iran War isn’t just draining America’s crude stockpiles. It’s also spiking gas prices — and spurring a hybrid boom. Sales of hybrid vehicles revved 33% in May compared to the same month last year, according to a Wall Street Journal analysis of Motor Intelligence data. “The hybrids have been a godsend,” Mark Politte, the dealer principal at Stanley Subaru in Ellsworth, Maine, told the newspaper. They are “hotter than the non-hybrids.” While new vehicle sales are down 4.4% overall this year through May, hybrid sales are up 17% compared with 2025.
Meanwhile, autonomous electric vehicle company Waymo announced a deal on Thursday to recycle batteries from its nearly 4,000 operating robotaxis into battery storage for electric grids in California and Texas. Waymo’s fleet is made up mostly of Jaguar I-Pace EVs, which have 90-kilowatt-hour batteries. “Put a little haircut on that in terms of degradation and the effective capacity that would be left in those batteries when they’re suitable for repurposing, and we’re still talking about pretty significant capacity per battery,” Freeman Hall, CEO of B2U Storage Solutions, Waymo’s partner in the project, told Ars Technica.

The U.S. may be depleting its oil stockpiles, but it has increased its storage capacity for natural gas in the future. Underground storage capacity in the Lower 48 states increased slightly in 2025, growing mostly in the South Central and Mountain West regions, according to new data from the Energy Information Administration. “Underground natural gas storage provides a source of energy when demand increases, balancing U.S. energy needs,” analyst Jose Villar wrote. “We calculate natural gas storage capacity in two ways: demonstrated peak capacity and working gas design capacity. Both increased in 2025.”