By Michael Svoboda
For April's bookshelf we take a cue from Earth Day and step back to look at the bigger picture. It wasn't climate change that motivated people to attend the teach-ins and protests that marked that first observance in 1970; it was pollution, the destruction of wild lands and habitats, and the consequent deaths of species.
The earliest Earth Days raised awareness, led to passage of new laws, and spurred conservation. But the original problems are still with us. And now they intersect with climate change, making it impossible to address one problem without affecting the others.
The 12 books listed below remind us about these defining interconnections.
The first three focus on biodiversity and on humanity's fractured relationships with the animals we live with on land.
The second trio explores the oceans and, at the same time, considers social and cultural factors that determine what we know – and don't know – about the 75% of our planet that is covered by water, perhaps the least well understood part of the climate system.
Agriculture and food security are examined by the third tranche of titles. This set includes a biography that may challenge what you think was/is possible, culturally and politically, in the American system.
Finally, there is the problem of waste, the problem of single-use plastics in particular. These three titles offer practical advice and qualified hope. Reducing litter might also reduce emissions – and vice versa.
As always, the descriptions of the works listed below are drawn from copy provided by the publishers or organizations that released them. When two dates of publication are included, the latter is for the paperback edition.
A Life on Our Planet My Witness Statement and Vision for the Future, by David Attenborough (Grand Central Publishing 2020, 272 pages, $26.00)
See the world. Then make it better. I am 93. I've had an extraordinary life. It's only now that I appreciate how extraordinary. As a young man, I felt I was out there in the wild, experiencing the untouched natural world – but it was an illusion. The tragedy of our time has been happening all around us, barely noticeable from day to day – the loss of our planet's wild places, its bio-diversity. I have been witness to this decline. A Life on Our Planet is my witness statement, and my vision for the future. It is the story of how we came to make this, our greatest mistake – and how, if we act now, we can yet put it right. We have one final chance to create the perfect home for ourselves and restore the wonderful world we inherited. All we need is the will to do so.
Beloved Beasts: Fighting for Life in an Age of Extinction, by Michelle Nijhuis (W.W. Norton 2021, 352 pages, $27.95)
In the late 19th century, as humans came to realize that our industrializing and globalizing societies were driving other animal species to extinction, a movement to conserve them was born. In Beloved Beasts, science journalist Michelle Nijhuis traces the movement's history. She describes the vital role of scientists and activists such as Aldo Leopold and Rachel Carson; she reveals the origins of organizations like the Audubon Society and the World Wildlife Fund; she explores current efforts to protect species; and she confronts the darker side of conservation, long shadowed by racism and colonialism. As the destruction of other species continues and the effects of climate change escalate, Beloved Beasts charts the ways conservation is becoming a movement for the protection of all species – including our own.
How to Be an Animal: A New History of What It Means to Be Human, by Melanie Challenger (Penguin Random House 2021, 272 pages, $17.00 paperback)
How to Be an Animal tells a remarkable story of what it means to be human and argues that at the heart of our existence is a profound struggle with being animal. We possess a psychology that seeks separation between humanity and the rest of nature, and we have invented grand ideologies to magnify this. In her book, nature historian Melanie Challenger explores the ways this mindset affects our lives, from our politics to our environments. She examines how technology influences our relationship with our own animal nature and with the other species with whom we share this fragile planet. Blending nature writing, history, and philosophy, How to Be an Animal both reappraises what it means to be human and robustly defends what it means to be an animal.
Ocean Speaks: How Marie Tharp Revealed the Ocean's Biggest Secret, by Jess Keating, Illustrated by Katie Hickey (Tundra Books 2020, 34 pages, $17.99)
From a young age, Marie Tharp loved watching the world. She loved solving problems. And she loved pushing the limits of what girls and women were expected to do and be. In the mid-twentieth century, women were not welcome in the sciences, but Marie was tenacious. She got a job at a laboratory in New York. But then she faced another barrier: women were not allowed on the research ships (they were considered bad luck on boats). So Marie stayed back and dove deep into the data her colleagues recorded. At first the scientific community refused to believe her, but her evidence was irrefutable. The mid-ocean ridge that Marie discovered is the single largest geographic feature on the planet, and she mapped it all from her small, cramped office.
Science on a Mission: How Military Funding Shaped What We Do and Don't Know about the Ocean, by Naomi Oreskes (University of Chicago Press 2021, 744 pages, $40.00)
What difference does it make who pays for science? After World War II, the US military turned to a new, uncharted theater of warfare: the deep sea. The earth sciences – particularly physical oceanography and marine geophysics – became essential to the US Navy, which poured unprecedented money and logistical support into their study. In Science on a Mission, historian Naomi Oreskes delves into the role of patronage in science, what emerges is a vivid portrait of how naval oversight transformed what we know about the sea. It is a detailed, sweeping history that illuminates the ways funding shapes the subject, scope, and tenor of research, and it raises profound questions about American science. What difference does it make who pays? A lot.
Dark Side of the Ocean: The Destruction of Our Seas, Why It Matters, and What We Can Do About It, by Albert Bates (Groundswell Books 2020, 158 pages, $12.95 paperback)
Our oceans face levels of devastation previously unknown in human history due to pollution, overfishing, and damage to delicate aquatic ecosystems affected by global warming. Climate author Albert Bates explains how ocean life maintains adequate oxygen levels, prevents erosion from storms, and sustains a vital food source that factory-fishing operations cannot match. Bates also profiles organizations dedicated to changing the human impact on marine reserves, improving ocean permaculture, and putting the brakes on heat waves that destroy sea life and imperil human habitation at the ocean's edge. The Dark Side of the Ocean conveys a deep appreciation for the fragile nature of the ocean's majesty and compels us to act now to preserve it.
The Planter of Modern Life: Louis Bromfield and the Seeds of a Food Revolution, by Stephen Heyman (W.W. Norton 2020, 352 pages, $26.95)
Louis Bromfield was a World War I ambulance driver, a Paris expat, and a Pulitzer Prize-winning novelist as famous in the 1920s as Hemingway. But he cashed in his literary success to finance a wild agrarian dream in his native Ohio. There, in 1938, Bromfield transformed 600 badly eroded acres into a thriving cooperative farm, which became a mecca for agricultural pioneers and a country retreat for celebrities like Humphrey Bogart and Lauren Bacall. This sweeping biography unearths a lost icon of American culture. While Bromfield's name has faded into obscurity, his mission seems more critical today than ever before. The ideas he planted at his utopian experimental farm, Malabar, would inspire America's first generation of organic farmers and popularize the tenets of environmentalism years before Rachel Carson's Silent Spring.
Food Fights: How History Matters to Contemporary Food Debates, edited by Charles C. Ludington and Matthew Morse Booker (University of North Carolina Press 2019, 304 pages, $32.95 paperback)
What we eat, where it is from, and how it is produced are vital questions in today's America. We think seriously about food because it is freighted with the hopes, fears, and anxieties of modern life. Yet critiques of food and food systems all too often sprawl into jeremiads against modernity itself, while supporters of the status quo refuse to acknowledge the problems with today's methods of food production and distribution. Food Fights sheds new light on these crucial debates, using a historical lens. Its essays take strong positions, even arguing with one another, as they explore the many themes and tensions that define how we understand our food – from the promises and failures of agricultural technology to the politics of taste.
Our Changing Menu: Climate Change and the Foods We Love and Need, by Michael P. Hoffmann, Carrie Koplinka-Loehr, and Danielle L. Eiseman (Comstock Publishing Associates 2021, 264 pages, $21.95 paperback)
Our Changing Menu unpacks the increasingly complex relationships between food and climate change. In it, Michael Hoffmann, Carrie Koplinka-Loehr, and Danielle Eiseman offer an eye-opening journey through a complete menu of before-dinner drinks and salads; main courses and sides; and coffee and dessert. Along the way, they examine the escalating changes occurring to the flavors of spices and teas, the yields of wheat, the vitamins in rice, and the price of vanilla. Their story ends with a primer on the global food system, the causes and impacts of climate change, and what we can do. Our Changing Menu is a celebration of food and a call to all – from the common ground of food – to help tackle the greatest challenge of our time.
Plastic Free: The Inspiring Story of a Global Environmental Movement and Why It Matters, by Rebecca Prince-Ruiz and Joanna Atherhold Finn (Columbia University Press 2020, 272 pages, $28.00)
In July 2011, Rebecca Prince-Ruiz challenged herself and some friends to go plastic free for the whole month. Since then, the Plastic Free July movement has grown from a small group of people in the city of Perth into a 250-million strong community across 177 countries. Plastic Free tells the story of this world-leading environmental campaign. From narrating marine-debris research expeditions to tracking what actually happens to our waste to sharing insights from behavioral research, Plastic Free speaks to the massive scale of the plastic waste problem and how we can tackle it together. Interweaving interviews from participants, activists, and experts, it tells the inspiring story of how ordinary people have created change in their homes, communities, workplaces, schools, businesses, and beyond. Plastic Fee offers hope for the future.
Can I Recycle This? A Guide to Better Recycling and How to Reduce Single Use Plastics, by Jennie Romer (Penguin Books 2021, 272 pages, $22.00)
Since the dawn of the recycling system, men and women the world over have stood by their bins, holding an everyday object, wondering, "Can I recycle this?" This simple question links our concerns for the environment with how we interact with our local governments. Recycling rules seem to differ in every municipality, leaving average Americans scratching their heads at the simple act of throwing something away. Taking readers on an informative tour of how recycling actually works (setting aside the propaganda we were all taught as kids), Can I Recycle This gives straightforward answers to whether dozens of common household objects can be recycled. And it provides the information you need to make that decision for anything else you encounter.
Zero Waste Living: The 80/20 Way: The Busy Person's Guide to a Lighter Footprint, by Stephanie J. Miller (Changemaker Books 2020, 112 pages, $10.95 paperback)
Many of us feel powerless to solve the looming climate and waste crises. We have too much on our plates, and so may think these problems are better solved by governments and businesses. This book unlocks the potential in each "too busy" individual to be a crucial part of the solution. Stephanie Miller combines her climate-focused career with her own research and personal experience to show how relatively easy lifestyle changes can create significant positive impacts. Using the simplicity of the 80/20 rule, she shows us those things (the 20%) that we can do to make the biggest (80%) difference in reversing the climate and waste crises. Her book empowers busy individuals to do the easy things that have a real impact on the climate and waste crises.
Reposted with permission from Yale Climate Connections.
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Court Ends Trump's Attempt to Allow Drilling in 128 Million Acres of Atlantic and Arctic Oceans
By Jake Johnson
A federal appeals court on Tuesday dealt the final blow to former President Donald Trump's attempt to open nearly 130 million acres of territory in the Arctic and Atlantic Oceans to oil and gas drilling.
In April of 2017, Trump signed an executive order aiming to undo an Obama-era ban on fossil fuel exploration in that territory, but a federal judge in Alaska ruled the move unlawful in 2019.
Though the Trump administration appealed the ruling, President Joe Biden revoked his predecessor's 2017 order shortly after taking office, rendering the court case moot. On Tuesday, the Ninth Circuit Court of Appeals agreed to dismiss the Trump administration's appeal.
"Because the terms of the challenged Executive Order are no longer in effect, the relevant areas of the [Outer Continental Shelf] in the Chukchi Sea, Beaufort Sea, and Atlantic Ocean will be withdrawn from exploration and development activities," the court said in its order.
Erik Grafe of Earthjustice, which represented a coalition of advocacy groups that challenged Trump's order, said in a statement that "we welcome today's decision and its confirmation of President Obama's legacy of ocean and climate protection."
"As the Biden administration considers its next steps, it should build on these foundations, end fossil fuel leasing on public lands and waters, and embrace a clean energy future that does not come at the expense of wildlife and our natural heritage," Grafe continued. "One obvious place for immediate action is America's Arctic, including the Arctic Refuge and the Western Arctic, which the previous administration sought to relegate to oil development in a series of last-minute decisions that violate bedrock environmental laws."
VICTORY: 9th Circuit ends fight over President Trump's illegal attempt to open up 128 million acres of Atlantic & A… https://t.co/TvYVt2F1jO— Earthjustice (@Earthjustice)1618347073.0
In January, Biden ordered a temporary pause on new oil and gas leasing on federal lands and waters, a decision environmentalists hailed as a positive step that should be made permanent.
But climate groups voiced outrage last month when the Biden administration gave career officials a green light to resume processing existing permits for drilling on public lands and waters.
"We call on President Biden to keep his promise: a full and complete ban on fracking and fossil fuel extraction on public lands. Full stop," Food & Water Watch policy director Mitch Jones said at the time. "The climate crisis requires it and he promised it."
Reposted with permission from Common Dreams.
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Each product featured here has been independently selected by the writer. If you make a purchase using the links included, we may earn commission.
The bright patterns and recognizable designs of Waterlust's activewear aren't just for show. In fact, they're meant to promote the conversation around sustainability and give back to the ocean science and conservation community.
Each design is paired with a research lab, nonprofit, or education organization that has high intellectual merit and the potential to move the needle in its respective field. For each product sold, Waterlust donates 10% of profits to these conservation partners.
Eye-Catching Designs Made from Recycled Plastic Bottles
waterlust.com / @abamabam
The company sells a range of eco-friendly items like leggings, rash guards, and board shorts that are made using recycled post-consumer plastic bottles. There are currently 16 causes represented by distinct marine-life patterns, from whale shark research and invasive lionfish removal to sockeye salmon monitoring and abalone restoration.
One such organization is Get Inspired, a nonprofit that specializes in ocean restoration and environmental education. Get Inspired founder, marine biologist Nancy Caruso, says supporting on-the-ground efforts is one thing that sets Waterlust apart, like their apparel line that supports Get Inspired abalone restoration programs.
"All of us [conservation partners] are doing something," Caruso said. "We're not putting up exhibits and talking about it — although that is important — we're in the field."
Waterlust not only helps its conservation partners financially so they can continue their important work. It also helps them get the word out about what they're doing, whether that's through social media spotlights, photo and video projects, or the informative note card that comes with each piece of apparel.
"They're doing their part for sure, pushing the information out across all of their channels, and I think that's what makes them so interesting," Caruso said.
And then there are the clothes, which speak for themselves.
Advocate Apparel to Start Conversations About Conservation
waterlust.com / @oceanraysphotography
Waterlust's concept of "advocate apparel" encourages people to see getting dressed every day as an opportunity to not only express their individuality and style, but also to advance the conversation around marine science. By infusing science into clothing, people can visually represent species and ecosystems in need of advocacy — something that, more often than not, leads to a teaching moment.
"When people wear Waterlust gear, it's just a matter of time before somebody asks them about the bright, funky designs," said Waterlust's CEO, Patrick Rynne. "That moment is incredibly special, because it creates an intimate opportunity for the wearer to share what they've learned with another."
The idea for the company came to Rynne when he was a Ph.D. student in marine science.
"I was surrounded by incredible people that were discovering fascinating things but noticed that often their work wasn't reaching the general public in creative and engaging ways," he said. "That seemed like a missed opportunity with big implications."
Waterlust initially focused on conventional media, like film and photography, to promote ocean science, but the team quickly realized engagement on social media didn't translate to action or even knowledge sharing offscreen.
Rynne also saw the "in one ear, out the other" issue in the classroom — if students didn't repeatedly engage with the topics they learned, they'd quickly forget them.
"We decided that if we truly wanted to achieve our goal of bringing science into people's lives and have it stick, it would need to be through a process that is frequently repeated, fun, and functional," Rynne said. "That's when we thought about clothing."
Support Marine Research and Sustainability in Style
To date, Waterlust has sold tens of thousands of pieces of apparel in over 100 countries, and the interactions its products have sparked have had clear implications for furthering science communication.
For Caruso alone, it's led to opportunities to share her abalone restoration methods with communities far and wide.
"It moves my small little world of what I'm doing here in Orange County, California, across the entire globe," she said. "That's one of the beautiful things about our partnership."
Check out all of the different eco-conscious apparel options available from Waterlust to help promote ocean conservation.
Melissa Smith is an avid writer, scuba diver, backpacker, and all-around outdoor enthusiast. She graduated from the University of Florida with degrees in journalism and sustainable studies. Before joining EcoWatch, Melissa worked as the managing editor of Scuba Diving magazine and the communications manager of The Ocean Agency, a non-profit that's featured in the Emmy award-winning documentary Chasing Coral.
Japan will release radioactive wastewater from the failed Fukushima nuclear plant into the Pacific Ocean, the government announced on Tuesday.
The water will be treated before release, and the International Atomic Energy Agency said the country's plans were in keeping with international practice, The New York Times reported. But the plan is opposed by the local fishing community, environmental groups and neighboring countries. Within hours of the announcement, protesters had gathered outside government offices in Tokyo and Fukushima, according to NPR.
"The Japanese government has once again failed the people of Fukushima," Greenpeace Japan Climate and Energy Campaigner Kazue Suzuki said in a statement. "The government has taken the wholly unjustified decision to deliberately contaminate the Pacific Ocean with radioactive wastes."
The dilemma of how to dispose of the water is one ten years in the making. In March 2011, an earthquake and tsunami in northeastern Japan killed more than 19,000 people and caused three of six reactors at the Fukushima Daiichi nuclear power plant to melt down, The New York Times explained. This resulted in the biggest nuclear disaster since Chernobyl, and the cleanup efforts persist more than a decade later.
To keep the damaged reactors from melting down, cool water is flushed through them and then filtered to remove all radioactive material except for tritium. Up until now, the wastewater has been stored on site, but the government says the facility will run out of storage room next year. Water builds up at 170 tons per day, and there are now around 1.25 million tons stored in more than 1,000 tanks.
The government now plans to begin releasing the water into the ocean in two years time, according to a decision approved by cabinet ministers Tuesday. The process is expected to take decades.
"On the premise of strict compliance with regulatory standards that have been established, we select oceanic release," the government said in a statement reported by NPR.
Opposition to the move partly involves a lack of trust around what is actually in the water, as NPR reported. Both the government and Tokyo Electric Power Co., which operates the plant, say that the water only contains tritium, which cannot be separated from hydrogen and is only dangerous to humans in large amounts.
"But it turned out that the water contains more radioactive materials. But they didn't disclose that information before," Friends of the Earth Japan campaigner Ayumi Fukakusa told NPR. "That kind of attitude is not honest to people. They are making distrust by themselves."
In February, for example, a rockfish shipment was stopped when a sample caught near Fukushima tested positive for unsafe levels of cesium.
This incident also illustrates why local fishing communities oppose the release. Fish catches are already only 17.5 percent of what they were before the disaster, and the community worries the release of the water will make it impossible for them to sell what they do catch. They also feel the government went against its promises by deciding to release the water.
"They told us that they wouldn't release the water into the sea without the support of fishermen," fishery cooperative leader Kanji Tachiya told national broadcaster NHK, as CBS News reported. "We can't back this move to break that promise and release the water into the sea unilaterally."
Japan's neighbors also questioned the move. China called it "extremely irresponsible," and South Korea asked for a meeting with the Japanese ambassador in Seoul in response.
The U.S. State Department, however, said that it trusted Japan's judgement.
"In this unique and challenging situation, Japan has weighed the options and effects, has been transparent about its decision, and appears to have adopted an approach in accordance with globally accepted nuclear safety standards," the department said in a statement reported by The New York Times.
But environmentalists argue that the government could have found a way to continue storing waste.
"Rather than using the best available technology to minimize radiation hazards by storing and processing the water over the long term, they have opted for the cheapest option, dumping the water into the Pacific Ocean," Greenpeace's Suzuki said.
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Each product featured here has been independently selected by the writer. If you make a purchase using the links included, we may earn commission.
The bright patterns and recognizable designs of Waterlust's activewear aren't just for show. In fact, they're meant to promote the conversation around sustainability and give back to the ocean science and conservation community.
Each design is paired with a research lab, nonprofit, or education organization that has high intellectual merit and the potential to move the needle in its respective field. For each product sold, Waterlust donates 10% of profits to these conservation partners.
Eye-Catching Designs Made from Recycled Plastic Bottles
waterlust.com / @abamabam
The company sells a range of eco-friendly items like leggings, rash guards, and board shorts that are made using recycled post-consumer plastic bottles. There are currently 16 causes represented by distinct marine-life patterns, from whale shark research and invasive lionfish removal to sockeye salmon monitoring and abalone restoration.
One such organization is Get Inspired, a nonprofit that specializes in ocean restoration and environmental education. Get Inspired founder, marine biologist Nancy Caruso, says supporting on-the-ground efforts is one thing that sets Waterlust apart, like their apparel line that supports Get Inspired abalone restoration programs.
"All of us [conservation partners] are doing something," Caruso said. "We're not putting up exhibits and talking about it — although that is important — we're in the field."
Waterlust not only helps its conservation partners financially so they can continue their important work. It also helps them get the word out about what they're doing, whether that's through social media spotlights, photo and video projects, or the informative note card that comes with each piece of apparel.
"They're doing their part for sure, pushing the information out across all of their channels, and I think that's what makes them so interesting," Caruso said.
And then there are the clothes, which speak for themselves.
Advocate Apparel to Start Conversations About Conservation
waterlust.com / @oceanraysphotography
Waterlust's concept of "advocate apparel" encourages people to see getting dressed every day as an opportunity to not only express their individuality and style, but also to advance the conversation around marine science. By infusing science into clothing, people can visually represent species and ecosystems in need of advocacy — something that, more often than not, leads to a teaching moment.
"When people wear Waterlust gear, it's just a matter of time before somebody asks them about the bright, funky designs," said Waterlust's CEO, Patrick Rynne. "That moment is incredibly special, because it creates an intimate opportunity for the wearer to share what they've learned with another."
The idea for the company came to Rynne when he was a Ph.D. student in marine science.
"I was surrounded by incredible people that were discovering fascinating things but noticed that often their work wasn't reaching the general public in creative and engaging ways," he said. "That seemed like a missed opportunity with big implications."
Waterlust initially focused on conventional media, like film and photography, to promote ocean science, but the team quickly realized engagement on social media didn't translate to action or even knowledge sharing offscreen.
Rynne also saw the "in one ear, out the other" issue in the classroom — if students didn't repeatedly engage with the topics they learned, they'd quickly forget them.
"We decided that if we truly wanted to achieve our goal of bringing science into people's lives and have it stick, it would need to be through a process that is frequently repeated, fun, and functional," Rynne said. "That's when we thought about clothing."
Support Marine Research and Sustainability in Style
To date, Waterlust has sold tens of thousands of pieces of apparel in over 100 countries, and the interactions its products have sparked have had clear implications for furthering science communication.
For Caruso alone, it's led to opportunities to share her abalone restoration methods with communities far and wide.
"It moves my small little world of what I'm doing here in Orange County, California, across the entire globe," she said. "That's one of the beautiful things about our partnership."
Check out all of the different eco-conscious apparel options available from Waterlust to help promote ocean conservation.
Melissa Smith is an avid writer, scuba diver, backpacker, and all-around outdoor enthusiast. She graduated from the University of Florida with degrees in journalism and sustainable studies. Before joining EcoWatch, Melissa worked as the managing editor of Scuba Diving magazine and the communications manager of The Ocean Agency, a non-profit that's featured in the Emmy award-winning documentary Chasing Coral.
Four gray whales have washed up dead near San Francisco within nine days, and at least one cause of death has been attributed to a ship strike.
More whales than usual have been washing up dead since 2019, and the West Coast gray whale population continues to suffer from an unusual mortality event, defined by the National Oceanic and Atmospheric Administration (NOAA) as "a stranding that is unexpected; involves a significant die-off of any marine mammal population; and demands immediate response."
"It's alarming to respond to four dead gray whales in just over a week because it really puts into perspective the current challenges faced by this species," Dr. Pádraig Duignan, director of pathology at the Marine Mammal Center, said in a press release.
As the world's largest marine mammal hospital, the Sausalito-based center has been investigating the recent spate of deaths. The first involved a 41-foot female who washed up dead at San Francisco's Crissy Field on March 31, SFGate reported. The cause of death remains a mystery, as the whale was in good condition with a full stomach. The second, another female, washed up on April 3 at Fitzgerald Marine Reserve on Moss Beach.
"That animal's cause of death, we suspect, was ship strike," the Marine Mammal Center's Giancarlo Rulli told SFGate. "Our plan is to eventually head back out to that whale and take more samples."
The third whale washed up April 7 near Berkeley Marina, The AP reported. The center determined it was a 37-foot male in average condition, with no evidence of illness or injury.
A 41-foot female turned up the next day on Marin County's Muir Beach. She suffered bruising and hemorrhaging around the jaw and neck vertebrae, indicating a vessel strike.
Vessel strikes are one of the leading causes of death for gray whales examined by the Marine Mammal Center, along with entanglements in fishing gear and malnutrition. While the species is not endangered, the population has declined by 25 percent since last assessed in 2016, CNN reported.
West Coast gray whales travel 10,000 miles every year between Mexico and the Arctic, according to The AP. They spend the winter breeding off of Baja California, and feed along the California coast in spring and summer on their way back north. The Marine Mammal Center began noticing a problem for the migrating whales in 2019.
"Our team hasn't responded to this number of dead gray whales in such a short span since 2019 when we performed a startling 13 necropsies in the San Francisco Bay Area," Dr. Duignan said in the press release.
The 2019 deaths led NOAA to declare an unusual mortality event for West Coast gray whales. It is similar to another event that happened from 1999 to 2000, after which the whales' numbers rebounded to even higher levels. This suggests population dips and rises may not be uncommon for the species. However, it is also possible that the climate crisis is playing a role. The 2019 deaths were linked to malnutrition, and warmer waters can reduce the amount of food whales have to eat in the Arctic, giving them less energy for their migration, CNN explained. Overfishing can also play a role in depriving whales of food, the Marine Mammal Center said.
Dr. Jeff Boehm, Marine Mammal Center CEO and veterinarian, told CNN that he had observed an uptick in shipping traffic after the pandemic caused a slowdown. At the same time, the center is less able to conduct research because of COVID-19 safety precautions. And even in the best of times, only around 10 percent of dead whales wash up on shore, The AP reported.
"This many dead whales in a week is shocking, especially because these animals are the tip of the iceberg," Kristen Monsell, legal director of the Center for Biological Diversity's Oceans program, told The AP.
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By David Shiffman
As we enter what's hopefully the home stretch of the COVID-19 pandemic, it's time to take stock of how it affected every aspect of our world, to consider what happened, what could be done different to avoid those problems in the future, and what's next.
That might mean confronting some of our earlier conclusions. For example, at the start of the pandemic we were bombarded with often false stories about suddenly quiet cities and waterways experiencing animals reclaiming what was once their habitat. "Nature is healing" stories like this seem to have created an overly rosy picture of the pandemic's impact on the natural world.
The reality is much more complicated, and I'm not just talking about things like the well-publicized millions of inappropriately discarded plastic bags and protective masks ending up in the ocean. Many other changes to the world's waters, including some potentially harmful ones, are taking place beneath the surface.
"Protected and conserved areas and the people who depend on them are facing mounting challenges due to the pandemic," says Rachel Golden Kroner, an environmental governance fellow at Conservation International. Indeed, for the past two decades a sizable chunk of global biodiversity conservation has been funded by ecotourism, a funding source that dries up when international travel slows down, as it did this past year.
While any global complex event has many impacts including some that we almost certainly can't predict at this point, many of the medium and long-term effects are likely to be bad.
And You Thought Your Virtual Meetings Were Bad
It's not just your workplace that's been meeting online this past year. It's every meeting, including international wildlife conservation and management meetings.
Some of these important events have been postponed, stalling critical political momentum that scientists and activists have been building for years. Others have met virtually, with notably less effectiveness.
The highest profile example of this was the December 2020 failure of the Inter-American Tropical Tuna Commission. The IATTC is an international gathering that governs a multi-billion-dollar series of global tuna fisheries, and meetings include representatives from all over the world who hammer out fishing quotas and other rules. The 2020 meeting closed without reaching an agreement on 2021 quotas. If allowed to stand, this would have meant that starting on January 1 of this year, a multi-billion-dollar global industry would have had absolutely no rules governing it. Imagine if your city council failed to agree on a policing budget, and this meant that "The Purge" was suddenly real — that's what nearly happened in the world of tuna management this past winter.
NOAA
The pandemic didn't create the problem of tuna management politics, but experts believe that the virtual meeting, which precluded "schmoozing" in the hallway during coffee breaks and added an element of multiple time zone chaos, contributed to this year's unprecedented breakdown in negotiations.
"These meetings are often difficult to get through, but usually they keep working until they get it done, until there's at least a decent solution," says Grantly Galland, a global tuna conservation expert with Pew Environment. That's hard enough in person, but this year "the meeting started at 6 p.m. for me in D.C., which was midnight in Europe, and early morning in Japan. People were often frustrated. As discussions dragged into the night the incentive to keep going disappeared, and the meeting ended without rules."
Fortunately, after receiving intense pushback from environmental groups and the concerned public, the commission met for an emergency meeting a few weeks later and fixed this problem by just carrying over the 2020 rules to 2021 — hardly an ideal solution given existing problems with the 2020 rules, but a lot better than open ocean anarchy.
Still, this near-disaster shows how dependent our system of environmental management is on face-to-face meetings.
Industry Relief
Whenever there's any economic crisis, industry will ask for a temporary (or even permanent) rollback of environmental protection regulations that they find economically burdensome. Marine and coastal protected areas, long a priority for science-based conservation and long opposed by elements of the fishing industry, have been no exception.
For example, a fisheries management council asked then-President Trump to allow fishing in currently protected areas, and the Trump administration did roll back fishing protections in the Atlantic around that time.
NOAA OKEANOS Explorer Program, 2013 Northeast U.S. Canyons Expedition
Marine protected areas also face other threats stemming from the pandemic. Rachel Golden Kroner, who also authored a recent paper on the impacts of the pandemic on protected areas, says: "Key challenges for marine protected areas include budget cuts, declines in tourism revenue, disruption of seafood supply chains and challenges in implementing management activities."
Golden Kroner shared examples of the near-collapse of the tourism-associated hospitality industry in Kenya, the Galapagos, Indonesia and Australia, noting that some of these industries employed former members of the fishing industry who had been persuaded to work in tourism instead.
While some coastal communities and protected areas face these serious issues, the good news is that this problem is far from universal.
"While the shutdowns, restrictions, and closures of coastal areas disrupted access and temporarily interrupted stewardship and harvest activities across Hawai'i, the connections between humans and nature forged over generations ensured that marine management actions never lost momentum," says Ulu Ching, the program manager for community-based conservation for Conservation International's Hawaii office. "Well-established community networks in collaboration with government resource management agencies continued to advance the work of mālama i ke kai (caring for the ocean) through the development and establishment of community-driven marine managed areas across the islands during the pandemic."
A young monk seal underwater in the Northwest Hawaiian Islands. NOAA/PIFSC/HMSRP
Additionally, Golden Kroner points out that while some momentum for creating protected areas has stalled and some industry groups have called for rollbacks, there is good news in the form of expanded protected areas in a handful of places around the world. But it's clear that despite some positive signs, momentum in creating new marine protected areas has stalled in many places, tourism that funded their operations has slowed to a crawl, and some industries have been successful in rolling back protections.
Threats Continue, But Monitoring Has Stalled
One of the primary tools in the conservationist's toolbox for making sure that the commercial fishing industry follows the rules is observer coverage: independent people on board fishing vessels who monitor and record the catch. Due to COVID-19 safety regulations, observer coverage in much of the world has been reduced or eliminated — but fishing continues.
"For countries with fewer management resources, I can imagine that less observer coverage could lead to more rules being bent," says Simon Gulak, a fisheries consultant with Sea Leucas LLC who used to coordinate fisheries observers for the National Oceanic and Atmospheric Administration.
"Fisheries observers provide fisheries management with accurate information on all discards/bycatch at sea, not just the cuddly protected species," he says. "They're a bit like a fisher's auditor and are liked about as much."
The problem with a lack of observers means that we generally have no way of knowing if bad things are happening on the water, but there are certainly cases of fishing vessels who only follow the rules because they'll get fined if they don't.
Gulak notes that in fisheries subject to electronic monitoring — including GPS trackers and cameras that document all catch and bycatch — observers may be less important because all relevant data is recorded automatically and it's harder to get away with breaking the rules.
Galland, the tuna conservation expert, also stressed the importance of ramping up electronic fisheries monitoring efforts. If the pandemic leads to an increase in e-monitoring, that may be a long-term good. In the meantime, we just don't know what's going on in many fisheries that were previously monitored by human observers.
It's not just fisheries observing that's stalled due to workplace safety concerns, but also fish market surveys, an important scientific tool for monitoring catch from boats too numerous and small to have observers or electronic monitoring equipment. In large parts of the world, fish market surveys are the only data we have on local catch composition. Without them, we wouldn't know how many endangered species are caught, or if formerly common species started to disappear.
Monitoring of things like sea turtle nests has similarly slowed down. These nest surveys are a critical way for scientists and managers to keep track of population trends of iconic endangered species, and to protect the nests themselves by marking them so beach drivers of off-road vehicles know to not crush the hidden nests.
A recently emerged sea turtle hatchling. Becky Skiba/USFWS
So what does the pandemic mean for ocean conservation? Experts caution that it's probably too early to tell. However, it's not all stories of dolphins frolicking in suddenly quiet rivers. Environmental planning meetings, funding schemes for protected areas, and monitoring of fisheries and endangered species populations were all disrupted, giving us good reasons to fear that the story is far more complicated, and far less happy, than many of us have been led to believe.
David Shiffman is a marine biologist specializing in the ecology and conservation of sharks. He received his Ph.D. in environmental science and policy from the University of Miami. Follow him on Twitter, where he's always happy to answer any questions anyone has about sharks.
Reposted with permission from The Revelator.
Marine Life Is Fleeing the Equator to Cooler Waters – This Could Trigger a Mass Extinction Event
By Anthony Richardson, Chhaya Chaudhary, David Schoeman, and Mark John Costello
The tropical water at the equator is renowned for having the richest diversity of marine life on Earth, with vibrant coral reefs and large aggregations of tunas, sea turtles, manta rays and whale sharks. The number of marine species naturally tapers off as you head towards the poles.
Ecologists have assumed this global pattern has remained stable over recent centuries — until now. Our recent study found the ocean around the equator has already become too hot for many species to survive, and that global warming is responsible.
In other words, the global pattern is rapidly changing. And as species flee to cooler water towards the poles, it's likely to have profound implications for marine ecosystems and human livelihoods. When the same thing happened 252 million years ago, 90% of all marine species died.
The Bell Curve is Warping Dangerously
If you look at each line in this chart, you can see a slight dip in total species richness between 1955 and 1974. This deepens substantially in the following decades. Anthony Richardson, Author provided
This global pattern — where the number of species starts lower at the poles and peaks at the equator — results in a bell-shaped gradient of species richness. We looked at distribution records for nearly 50,000 marine species collected since 1955 and found a growing dip over time in this bell shape.
So, as our oceans warm, species have tracked their preferred temperatures by moving towards the poles. Although the warming at the equator of 0.6℃ over the past 50 years is relatively modest compared with warming at higher latitudes, tropical species have to move further to remain in their thermal niche compared with species elsewhere.
As ocean warming has accelerated over recent decades due to climate change, the dip around at the equator has deepened.
We predicted such a change five years ago using a modeling approach, and now we have observational evidence.
For each of the 10 major groups of species we studied (including pelagic fish, reef fish and molluscs) that live in the water or on the seafloor, their richness either plateaued or declined slightly at latitudes with mean annual sea-surface temperatures above 20℃.
Today, species richness is greatest in the northern hemisphere in latitudes around 30°N (off southern China and Mexico) and in the south around 20°S (off northern Australia and southern Brazil).
This Has Happened Before
We shouldn't be surprised global biodiversity has responded so rapidly to global warming. This has happened before, and with dramatic consequences.
252 million years ago…
At the end of the Permian geological period about 252 million years ago, global temperatures warmed by 10℃ over 30,000-60,000 years as a result of greenhouse gas emissions from volcano eruptions in Siberia.
A 2020 study of the fossils from that time shows the pronounced peak in biodiversity at the equator flattened and spread. During this mammoth rearranging of global biodiversity, 90% of all marine species were killed.
125,000 years ago…
A 2012 study showed that more recently, during the rapid warming around 125,000 years ago, there was a similar swift movement of reef corals away from the tropics, as documented in the fossil record. The result was a pattern similar to the one we describe, although there was no associated mass extinction.
Authors of the study suggested their results might foreshadow the effects of our current global warming, ominously warning there could be mass extinctions in the near future as species move into the subtropics, where they might struggle to compete and adapt.
Today…
During the last ice age, which ended around 15,000 years ago, the richness of forams (a type of hard-shelled, single-celled plankton) peaked at the equator and has been dropping there ever since. This is significant as plankton is a keystone species in the foodweb.
Our study shows that decline has accelerated in recent decades due to human-driven climate change.
The Profound Implications
Losing species in tropical ecosystems means ecological resilience to environmental changes is reduced, potentially compromising ecosystem persistence.
In subtropical ecosystems, species richness is increasing. This means there'll be species invaders, novel predator-prey interactions, and new competitive relationships. For example, tropical fish moving into Sydney Harbour compete with temperate species for food and habitat.
This could result in ecosystem collapse — as was seen at the boundary between the Permian and Triassic periods — in which species go extinct and ecosystem services (such as food supplies) are permanently altered.
The changes we describe will also have profound implications for human livelihoods. For example, many tropical island nations depend on the revenue from tuna fishing fleets through the selling of licenses in their territorial waters. Highly mobile tuna species are likely to move rapidly toward the subtropics, potentially beyond sovereign waters of island nations.
Similarly, many reef species important for artisanal fishers — and highly mobile megafauna such as whale sharks, manta rays and sea turtles that support tourism — are also likely to move toward the subtropics.
The movement of commercial and artisanal fish and marine megafauna could compromise the ability of tropical nations to meet the Sustainable Development Goals concerning zero hunger and marine life.
Is There Anything We Can Do?
One pathway is laid out in the Paris Climate Accords and involves aggressively reducing our emissions. Other opportunities are also emerging that could help safeguard biodiversity and hopefully minimise the worst impacts of it shifting away from the equator.
Currently 2.7% of the ocean is conserved in fully or highly protected reserves. This is well short of the 10% target by 2020 under the UN Convention on Biological Diversity.
But a group of 41 nations is pushing to set a new target of protecting 30% of the ocean by 2030.
This "30 by 30" target could ban seafloor mining and remove fishing in reserves that can destroy habitats and release as much carbon dioxide as global aviation. These measures would remove pressures on biodiversity and promote ecological resilience.
Designing climate-smart reserves could further protect biodiversity from future changes. For example, reserves for marine life could be placed in refugia where the climate will be stable over the foreseeable future.
We now have evidence that climate change is impacting the best-known and strongest global pattern in ecology. We should not delay actions to try to mitigate this.
Anthony Richardson: Professor, The University of Queensland. Chhaya Chaudhary: University of Auckland, David Schoeman: Professor of Global-Change Ecology, University of the Sunshine Coast, Mark John Costello: Professor, University of Auckland
Disclosure statement: Anthony Richardson receives funding from the Australian Research Council.
Chhaya Chaudhary works for Goethe University, Frankfurt am Main, Germany. During her PhD studies (2014- 2019), she received part- funding from the European Marine Observation Data Network (EMODnet) Biology project funded by the European Commission's Directorate—General for Maritime Affairs and Fisheries (DG MARE), and received U21 Doctoral Mobility Scholarship from the University of Auckland in 2016.
David Schoeman receives funding from the Australian Research Council.
Mark John Costello does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.
Reposted with permission from The Conversation.
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In celebration of Earth Day, a star-studded cast is giving fans a rare glimpse into the secret lives of some of the planet's most majestic animals: whales. In "Secrets of the Whales," a four-part documentary series by renowned National Geographic Photographer and Explorer Brian Skerry and Executive Producer James Cameron, viewers plunge deep into the lives and worlds of five different whale species.
"The title refers to the latest and greatest science, which reveals that whales are a lot more like us than we first thought," Skerry told EcoWatch. "Science is clinical and studied. Traditionally, [we were] afraid to anthropomorphize whales. But now, science shows us they're very complex — with societies, families, emotions and cultures."
Following orcas, humpbacks, belugas, narwhals and sperm whales, Skerry takes viewers on a journey into the underwater world to experience whales like never before — watching them make lifelong friendships, teach their young specific traditions and grieve the loss of family. This is whale culture, Skerry explained, and these social bonds are the secret to their success.
Skerry explained how Shane Gero, his friend and sperm whale researcher, helped him frame whale culture in human terms. "There's a difference between behavior and culture," Skerry quoted Gero. "Behavior is what we do; culture is how we do it. For example, we eat food. That is behavior. But whether we eat it with a fork or chopsticks, that is culture."
Using this lens, Skerry shows how orcas around the world have developed distinct cultures around food. While New Zealand's orcas hunt hidden stingrays in the shallows, Patagonia's whales catch sea lions off the beach, and Norway's whales slap herring schools with their tails to stun them. These unique customs are also passed down to each generation. In the first episode, viewers follow five orca matriarchs as they teach their young the family's unique hunting legacy. The skills are not innate traits, but learned techniques adapted for survival in the local environment. Skerry explained how, without this ancient passage of knowledge, specific ways of life would die out.
Herring are a primary food source for Norway's orcas. Luis Lamar / National Geographic for Disney+
"This is the whales teaching their young," Skerry said. "This is generational, teaching the young how to survive, but also cultural — teaching them what matters to their family."
The episode also shows how external forces, such as humans fishing for herring in Norway, have changed whale culture in the area. When Skerry first visited the Arctic years ago, local orcas would corral fish to hunt. Now, with the advent of commercial fishing boats, they've learned to approach the ships and eat the fish that escape.
"I think of this as takeout," Skerry joked to EcoWatch. "If this behavior lasts a long time, maybe it will become culture. Maybe it already is."
For many, the series may be the first time seeing how different populations of whales have developed different customs based on where they are from, just like humans. Skerry explained, "Whales have dialects and they isolate. Sperm whales won't intermix with genetically identical animals that don't speak the same dialect. I think of this like the neighborhoods of New York, separated in enclaves by language. That's what the whales are doing."
Belugas are extremely social creatures with a varied vocal range. Peter Kragh / National Geographic for Disney+
Filmed during three years in 24 locations and narrated by Conservationist and Actress Sigourney Weaver, the National Geographic series showcases many never-before-recorded moments, such as belugas giving themselves names and humpbacks communicating through breaching. Throughout, the underlying messages are the same: whales have cultures that differ based on where they are from; they live in complex societies framed by tradition, survival and emotions; and, they're just like us.
"Whales have preferences for food, parenting technique, singing competitions. In this way, they mirror humans," Skerry emphasized.
In conjunction, Skerry has released a photography book with the same name that shares more secrets from the world's largest mammals. Plus, National Geographic's May magazine, dubbed "The Ocean Issue," aligns with the four-part series and Skerry's book, and will feature four related stories. The issue will publish April 15 and be available at natgeo.com/planetpossible.
Skerry believes the grand presentation of this new whale world will move people. He hopes viewers and readers will come to understand the complexity and connectivity between humans and the other "societies of beings" that we share the planet with. "We are visual creatures. We respond emotionally, viscerally to powerful imagery — it touches a part of our soul. Great science and storytelling that incorporates art checks all the boxes to move that needle," Skerry said.
He added, "On Earth Day, this is a good way to celebrate... this is a new view of the world. This changes our perception: no longer are we apart from nature or above it — we are intimately connected to it."
All four episodes of "Secrets of the Whales" will start streaming on Disney+ on Earth Day, Thursday, April 22nd.
A Southern Right whales is pictured in the accompanying book, "Secrets of the Whales." Brian Skerry / National Geographic
Ocean acidification and pollution are well-known threats to the world's coral reef ecosystems. But in a recent study, scientists have uncovered an entirely new threat: human fecal bacteria.
Two extreme flooding events in Texas in 2016 and 2017 carried human waste more than 100 miles offshore to the Gulf of Mexico's "secret" coral garden, also known as the Flower Garden Banks National Marine Sanctuary, new research from Rice University has found.
Usually, extreme flooding is expected to impact just nearshore ecosystems, such as salt marshes and oyster beds. That's why when scientists began to trace terrestrial runoff from extreme flooding to off-shore coral reefs they were "pretty shocked," marine biologist Adrienne Correa, co-author of a new study published in Frontiers in Marine Science, told Rice News.
"One thing we always thought the Flower Garden Banks were safe from was terrestrial runoff and nutrient pollution. It's a jolt to realize that in these extreme events, it's not just the salt marsh or the seagrass that we need to worry about. Offshore ecosystems can be affected too," Correa added.
Flower Garden Banks National Marine Sanctuary, one of the 14 marine protected areas managed by NOAA's Office of National Marine Sanctuaries, is home to manta rays, sea turtles, hammerheads and whale sharks, as well as "boulder-sized" brain and star corals, according to NOAA. Scientists at Rice University were originally inspired to conduct their study after recreational divers reported "murky waters" and "dead and dying organisms" in the sanctuary, Rice News reported.
In 2016, 2017 and 2018, scientists took sponge samples and found that samples from 2016 and 2017, after flooding events, contained E. coli and other human fecal bacteria. "This shows perhaps they aren't protected from severe events. And these events are increasing in frequency and intensity with climate change," lead author Amanda Shore said, according to ABC13. When exposed to terrestrial runoff, coral reef ecosystems can face decreased salinity and increased levels of contaminants and turbidity, the scientists wrote.
Over the past few years, Houston has not been a stranger to extreme flooding events. During the 2016 Tax Day flood, for example, 17 inches of rain fell in some places in less than a day. Hurricane Harvey also dumped an estimated 13 trillion gallons of rain over southeast Texas in August of 2017, making it the most intense rainfall event in U.S. history, ABC13 reported.
While sampling their sponges across these various flooding events, scientists found something peculiar. Although Hurricane Harvey dumped more water and was much more damaging than the Tax Day flood, the reefs fared better after Hurricane Harvey.
"We got lucky with ocean currents," Shore said about the Hurricane Harvey floods, according to Rice News. "Instead of going straight out from Galveston Bay and over the Flower Garden Banks, the water ended up turning a bit and going down the Texas coast instead."
As extreme flooding becomes more common in Texas due to climate change, scientists at Rice University hope to continue researching how terrestrial runoff will threaten the reefs in the long term. Correa and her team also stressed the importance of further "investment in research that follows the health and microbiomes of individual sponges and corals on the reef over time," Rice News reported.
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Tourists on a whale-watching boat of the California coast were treated to a marvel of marine life last month: a dolphin "stampede!"
That word for the phenomenon was coined by Dana Point Whale Watching, who posted a Youtube video of hundreds to thousands of common dolphins swimming in one direction March 19.
"This is pretty phenomenal," a voice can be heard exclaiming in the footage.
The tour company, which has operated out of the Orange County city that gives it its name for the last 50 years, kept pace with the massing dolphins for around four hours, HuffPost reported.
"The dolphins take off so fast they turn up the water making it white water," the tour company wrote in the video description. "You can hear them swimming through the rushing water. They are so graceful even in the frenzied behavior and we are so amazed to see them right of[f] our coast."
A large group of dolphins is actually known as a super or mega pod, according to HuffPost. The marine mammals usually travel in pods of 200 or fewer. But sometimes, they merge when food concentrates in a single area.
This isn't the first time the phenomenon has been recorded. One of the most spectacular instances was in 2013, when as many as 100,000 dolphins were spotted off the San Diego coast, as NBC 7 San Diego reported at the time. The superpod covered a five by seven mile stretch of ocean.
"They're definitely social animals, they stick together in small groups," Marine mammal expert Sarah Wilkin told NBC7 San Diego at the time. "But sometimes, the schools come together."
What is unique to Dana Point Whale Watching is their word choice. Some commenters objected to the term dolphin stampede.
"'Stampede' is a poor description," one Youtube commenter wrote. "It implies that this is a panicked, clumsy mass movement of animals. I have driven in a boat through a super-pod such as this, and these animals are anything but that. They are graceful and controlled. It's a beautiful thing to see."
However, most internet users were just grateful for the sight. The video went "viral" with around 25,000 views and more than 400 likes as of Monday, The Hill reported. As of Tuesday, the number of views had nearly doubled to 45,625.
As the tour company wrote on Instagram, "Who doesn't love a dolphin stampede!"
Sea Level Rise Is Killing Trees on the Atlantic Coast, Creating ‘Ghost Forests’ Visible From Space
By Emily Ury
Trekking out to my research sites near North Carolina's Alligator River National Wildlife Refuge, I slog through knee-deep water on a section of trail that is completely submerged. Permanent flooding has become commonplace on this low-lying peninsula, nestled behind North Carolina's Outer Banks. The trees growing in the water are small and stunted. Many are dead.
Throughout coastal North Carolina, evidence of forest die-off is everywhere. Nearly every roadside ditch I pass while driving around the region is lined with dead or dying trees.
As an ecologist studying wetland response to sea level rise, I know this flooding is evidence that climate change is altering landscapes along the Atlantic coast. It's emblematic of environmental changes that also threaten wildlife, ecosystems, and local farms and forestry businesses.
Like all living organisms, trees die. But what is happening here is not normal. Large patches of trees are dying simultaneously, and saplings aren't growing to take their place. And it's not just a local issue: Seawater is raising salt levels in coastal woodlands along the entire Atlantic Coastal Plain, from Maine to Florida. Huge swaths of contiguous forest are dying. They're now known in the scientific community as "ghost forests."
Deer photographed by a remote camera in a climate change-altered forest in North Carolina. Emily Ury / CC BY-ND
The Insidious Role of Salt
Sea level rise driven by climate change is making wetlands wetter in many parts of the world. It's also making them saltier.
In 2016 I began working in a forested North Carolina wetland to study the effect of salt on its plants and soils. Every couple of months, I suit up in heavy rubber waders and a mesh shirt for protection from biting insects, and haul over 100 pounds of salt and other equipment out along the flooded trail to my research site. We are salting an area about the size of a tennis court, seeking to mimic the effects of sea level rise.
After two years of effort, the salt didn't seem to be affecting the plants or soil processes that we were monitoring. I realized that instead of waiting around for our experimental salt to slowly kill these trees, the question I needed to answer was how many trees had already died, and how much more wetland area was vulnerable. To find answers, I had to go to sites where the trees were already dead.
Rising seas are inundating North Carolina's coast, and saltwater is seeping into wetland soils. Salts move through groundwater during phases when freshwater is depleted, such as during droughts. Saltwater also moves through canals and ditches, penetrating inland with help from wind and high tides. Dead trees with pale trunks, devoid of leaves and limbs, are a telltale sign of high salt levels in the soil. A 2019 report called them "wooden tombstones."
As the trees die, more salt-tolerant shrubs and grasses move in to take their place. In a newly published study that I coauthored with Emily Bernhardt and Justin Wright at Duke University and Xi Yang at the University of Virginia, we show that in North Carolina this shift has been dramatic.
The state's coastal region has suffered a rapid and widespread loss of forest, with cascading impacts on wildlife, including the endangered red wolf and red-cockaded woodpecker. Wetland forests sequester and store large quantities of carbon, so forest die-offs also contribute to further climate change.
Researcher Emily Ury measuring soil salinity in a ghost forest. Emily Bernhardt / CC BY-ND
Assessing Ghost Forests From Space
To understand where and how quickly these forests are changing, I needed a bird's-eye perspective. This perspective comes from satellites like NASA's Earth Observing System, which are important sources of scientific and environmental data.
Since 1972, Landsat satellites, jointly operated by NASA and the U.S. Geological Survey, have captured continuous images of Earth's land surface that reveal both natural and human-induced change. We used Landsat images to quantify changes in coastal vegetation since 1984 and referenced high-resolution Google Earth images to spot ghost forests. Computer analysis helped identify similar patches of dead trees across the entire landscape.
A 2016 Landsat8 image of the Albemarle Pamlico Peninsula in coastal North Carolina. USGS
Google Earth image of a healthy forest on the right and a ghost forest with many dead trees on the left. Emily Ury
The results were shocking. We found that more than 10% of forested wetland within the Alligator River National Wildlife Refuge was lost over the past 35 years. This is federally protected land, with no other human activity that could be killing off the forest.
Rapid sea level rise seems to be outpacing the ability of these forests to adapt to wetter, saltier conditions. Extreme weather events, fueled by climate change, are causing further damage from heavy storms, more frequent hurricanes and drought.
We found that the largest annual loss of forest cover within our study area occurred in 2012, following a period of extreme drought, forest fires and storm surges from Hurricane Irene in August 2011. This triple whammy seemed to have been a tipping point that caused mass tree die-offs across the region.
Habitat maps we created for the Alligator River National Wildlife Refuge showing the change over time and the prevalence of ghost forests. Ury et al, 2021., CC BY-ND
Should Scientists Fight the Transition or Assist It?
As global sea levels continue to rise, coastal woodlands from the Gulf of Mexico to the Chesapeake Bay and elsewhere around the world could also suffer major losses from saltwater intrusion. Many people in the conservation community are rethinking land management approaches and exploring more adaptive strategies, such as facilitating forests' inevitable transition into salt marshes or other coastal landscapes.
For example, in North Carolina the Nature Conservancy is carrying out some adaptive management approaches, such as creating "living shorelines" made from plants, sand and rock to provide natural buffering from storm surges.
A more radical approach would be to introduce marsh plants that are salt-tolerant in threatened zones. This strategy is controversial because it goes against the desire to try to preserve ecosystems exactly as they are.
But if forests are dying anyway, having a salt marsh is a far better outcome than allowing a wetland to be reduced to open water. While open water isn't inherently bad, it does not provide the many ecological benefits that a salt marsh affords. Proactive management may prolong the lifespan of coastal wetlands, enabling them to continue storing carbon, providing habitat, enhancing water quality and protecting productive farm and forest land in coastal regions.
Emily Ury is a Ph.D. candidate in Duke University's Program in Ecology.
Disclosure statement: Emily Ury received funding from the National Aeronautics and Space Administration (NASA) and the North Carolina Sea Grant. Additional support for this project came from the National Science Foundation.
Reposted with permission from The Conversation.
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Endangered North Atlantic right whales gave birth in greater numbers this winter compared to the past six years — a promising sign for a species that's been driven to the brink of extinction due to human activity.
From December through March, an aerial survey team reported 17 calves swimming with their mothers between Florida and North Carolina, AP News reported. This overall calf count is equal to the total number of births for the past three years and is a hopeful sign compared to 2018, when no right whale births were recorded.
North Atlantic right whales — which can grow to be 52-feet long, weigh up to 140,000 pounds and live about 70 years — each have unique callus patterns on their backs, helping scientists to track and identify individual whales and estimate total populations, according to NOAA Fisheries. But after being decimated by human hunting by the 1890s, right whales continue to be threatened by human activity, making them one of the most endangered large whale species in the world, with less than 400 individuals remaining.
"What we are seeing is what we hope will be the beginning of an upward climb in calving that's going to continue for the next few years," Clay George, a wildlife biologist who oversees right whale surveys for the Georgia Department of Natural Resources, told AP News about this year's higher birth rates. "They need to be producing about two dozen calves per year for the population to stabilize and continue to grow again."
According to scientists, the right whale's rebound could be attributed to shifting to a habitat where zooplankton food sources are more plentiful, Yale Environment 360 reported. "It's a somewhat hopeful sign that they are starting to adjust to this new regime where females are in good enough condition to give birth," Philip Hamilton, a right whale researcher at the New England Aquarium in Boston, told AP News.
But scientists warn that the hopeful news shouldn't distract from the leading causes of right whale deaths: entanglement in fishing gear and boat and ship collisions.
Since 2017, these threats have killed about 34 to 49 right whales, Yale Environment 360 reported. Research has also shown that entanglements caused 72 percent of diagnosed right whale mortalities between 2010-2018, according to The Conversation. Right whales that get tangled in lines and gear will often suffer for months or even years, slowly becoming emaciated and debilitated, the authors wrote.
"The greatest entanglement risk is from ropes that lobster and crab fishermen use to attach buoys to traps they set on the ocean floor. Humpback and minke whales and leatherback sea turtles, all of which are federally protected, also become entangled," explained Michael Moore, a senior scientist at the Woods Hole Oceanographic Institution, and Hannah Myers, a guest investigator with Woods Hole Oceanographic Institution.
But recent proposals to reduce fishing activity that could harm right whales haven't gone without criticism. For example, Maine Gov. Janet Mills said the rules, which include reducing the number of vertical lines in the water, would be "devastating for the lobster fishery," AP News reported. "If this comes to pass, it is not only fishermen and their crew who will be impacted, gear suppliers, trap builders, rope manufacturers — all these businesses face a deeply uncertain future," Mills said in a letter to NOAA, AP News reported.
But for some conservationists, the solution is simple. "North Atlantic right whales can still thrive if humans make it possible," Moore and Myers wrote in The Conversation, pointing to the closely related southern right whales, which have recovered from just 300 individuals in the early 20th century to an estimated 15,000 in 2010, due to decreased human threats.
"If we reduced or eliminated the human-caused death rate, their birth rate would be fine," Hamilton told AP News. "The onus should not be on them to reproduce at a rate that can sustain the rate at which we kill them. The onus should be in us to stop killing."