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Roundup: Environmental Rollbacks and the Climate Movement

Published by Anonymous (not verified) on Thu, 22/10/2020 - 7:16am in

Regulatory Rollbacks and Stories from the Movement to Fight Back Tracking deregulation in the Trump era: “[…] a selection of delayed, repealed, and new rules, notable guidance and policy revocations, and important court battles across eight major categories, including environmental, … Continue reading

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The Supreme Court Battle and the Climate Crisis

Published by Anonymous (not verified) on Thu, 22/10/2020 - 3:18am in

Roe v. Wade and Obamacare aren’t the only things endangered by Republicans’ rushed nomination of Amy Coney Barrett. Continue reading

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Climate Change and the Black Vote

Published by Anonymous (not verified) on Wed, 07/10/2020 - 7:54am in

When climate catastrophes strike in the United States, it is the nation’s Black people that are hit the hardest – while lacking the resources and social mobility to confront them. Continue reading

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Will We Be Able to Reverse Trump’s Climate Damage?

Published by Anonymous (not verified) on Sat, 26/09/2020 - 2:58am in

Trump still managed to scramble the trajectory of American climate policy, creating a tangle of legal fights that will have to be cleared up for US climate policy to move forward. And he left almost no part of our environmental regulatory structure untouched. Continue reading

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Cartoon: Wheel of dystopia

Published by Anonymous (not verified) on Tue, 22/09/2020 - 9:50pm in

If you are able, please consider joining the Sorensen Subscription Service!

Follow me on Twitter at @JenSorensen

Who Said What

Published by Anonymous (not verified) on Fri, 18/09/2020 - 2:51am in

At a “town hall” in the battleground state of Pennsylvania, the president faced ordinary Americans, who asked basic questions about health care, mask wearing, and so on, and received the litany and lies. The White House has been doing damage control from the event all day. Continue reading

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The Sitting President Has No Climate Plan. Why Isn’t That Headline News?

Published by Anonymous (not verified) on Thu, 03/09/2020 - 4:56am in

Getting this story right doesn’t take high-level math—just the normal journalistic commitment to present information in proper context. Continue reading

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Political, not Partisan: Covering the 2020 Elections as a Climate Story

Published by Anonymous (not verified) on Tue, 11/08/2020 - 5:13am in

Climate change is political insofar as strong policies are necessary to answer its challenges. That’s a plain fact of governance, not partisan opinion. Yet, for too long, journalism has tended to view climate policy through the lens of horse race politics: One candidate favors action. The other doesn’t. Who will prevail? This tendency has to go. Continue reading

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Vocabulary ‘Fitbits’ Are Changing How Babies Learn Words

Published by Anonymous (not verified) on Thu, 06/08/2020 - 12:02am in

Three great stories we found on the internet this week.

Small talk

By the time they reach kindergarten, children from low-income households have heard up to 30 million fewer words than their wealthier peers. All that lost vocabulary can have consequences for literacy attainment and language skills. So a project in Alabama is using wearable word counters to keep track of how many words young children hear — and encourage their caregivers to stay chatty all day long.

The program, called Birmingham Talks, currently has 250 families enrolled. Each kid gets a “talk pedometer,” a small Fitbit-style device that counts the number and variety of words the child hears, and produces detailed data breakdowns for the parents. Not only does this help them figure out how much vocabulary their child is absorbing, it has a “nudge effect” that appears to increase the variety of words those parents use around their kids.

A study of a similar program found that 56 percent of children involved were exposed to more adult words once they started wearing the device. Best of all, the kids who started out with the lowest exposure to words saw the biggest gains, from an average of 8,000 words per day to more than 12,000. “This provides parents with actual data to make sure they are meeting their goals,” said one of the program’s directors.    

Read more at 100 Days in Appalachia

Local flavor

The pandemic has dealt Phoenix a triple blow in terms of its food needs. Restaurants and caterers are facing a devastating slowdown, unsold food is spoiling in fields and warehouses, and food insecurity is rising as locals lose their incomes. Now, the city is using the CARES Act to connect local food producers with demand, helping to solve all three problems.

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Few cities are using CARES Act funding for emergency food relief, in part because using federal dollars for this sort of thing involves copious amounts of red tape. “Looking at federal guidelines, we would have had to have farmers submit three years of tax returns and huge forms and other reporting requirements,” one local organizer told Next City. “I said we can’t do it that way, so what can we do?” 

To take the bureaucratic burden off farmers, the city improvised its own documentation system in which the city’s Office of Environmental Programs uses receipts and photos to track the food being procured. The food will be sent to local restaurants and caterers for preparation, and each meal will contain at least three locally produced ingredients. These meals will then be distributed to residents experiencing food insecurity. The city council was so impressed that it allocated $500,000 in CARES Act money to put the plan into action — three times what had been requested. 

Read more at Next City

Clean save

The U.K.’s biggest pension fund has officially begun divesting from fossil fuels. With nine million members, the National Employment Savings Trust (NEST) handles the pensions of workers who save for retirement in the country’s auto-enrollment program. Some £5.5 billion ($7.2 billion USD) will be redirected in “climate aware” investments, which are expected to get a boost from new policies aimed at making Europe’s economic recovery a green one. “We have a unique opportunity to support sustainable growth and transition towards a low-carbon economy,” the fund’s chief investment officer told the Guardian.

Read more at the Guardian

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Tasmania’s ‘Super-Kelp’ Is Making CO2 Vanish into the Ocean

Published by Anonymous (not verified) on Tue, 04/08/2020 - 2:41am in

Sixty years ago, Tasmania’s coastline was cushioned by a velvety forest of kelp so dense it would ensnare local fishers as they headed out in their boats. “We speak especially to the older generation of fishers, and they say, ‘When I was your age, this bay was so thick with kelp, we actually had to cut a channel though it,’” says Cayne Layton, a postdoctoral research fellow at the Institute for Marine and Antarctic Studies at the University of Tasmania. “Now, those bays, which are probably at the scale of 10 or 20 football fields, are completely empty of kelp. There’s not a single plant left.”

Since the 1960s, Tasmania’s once expansive kelp forests have declined by 90 percent or more. The primary culprit is climate change. These giant algae need to be bathed in cool, nutrient-rich currents in order to thrive, yet regional warming in recent decades has extended the waters of the warmer East Australian Current into Tasmanian seas to devastating effect, wiping out kelp forests one by one. Warming waters have also boosted populations of predatory urchins, which gnaw on kelp roots and compound the loss.

Tasmania isn’t the only site of destruction. Globally, kelp grow in forests along the coastlines of every continent except Antarctica; most of these are threatened by climate change, coastal development, pollution, fishing and invasive predators. All of this matters because these ecosystems provide huge benefits: They cushion coastlines against the effect of storm surges and sea level rise; they cleanse water by absorbing excess nutrients; and they also slurp up carbon dioxide, which can help drive down ocean acidity and engineer a healthy environment for surrounding marine life. These forests — which in the case of the giant kelp species that grows in Tasmania, can reach heights of 130 feet — also provide habitat for hundreds of marine species.

Having spent years studying these benefits, Layton is now trying to bring a patch of Tasmania’s struggling kelp forests back to life. Every few weeks, he dives out to inspect three 39-by-39 feet plots he’s created off the coast, each containing fronds of baby kelp, springing from ropes that are tethered to the ocean floor. These kelp nurseries are part of Layton’s project to determine whether climate-resilient “super-kelp” that has been raised in a laboratory will fare better in Tasmania’s changing seas. But his experiment also brings attention to the extraordinary potential of kelp to absorb carbon and help tackle climate change.

Climate-forward kelp

It’s the capacity to draw CO2 from the atmosphere that has added “climate mitigation” to kelp’s list of benefits. When we talk about ways oceans can sequester carbon, the conversation typically revolves around mangroves, salt marshes and seagrass meadows. But “the magnitude of carbon sequestered by algal forests is comparable to that of all those three habitats together,” says Carlos Duarte, a professor of marine science at the King Abdullah University of Science and Technology in Saudi Arabia. “Algal forests should not be left behind. They have been hidden for much too long.”

There’s a lot we still don’t understand about how kelp store CO2. But researchers are starting to build a better picture of this giant seaweed and how we might improve its capacity to help tackle climate change.

The dilemma is that kelp itself is also under siege from warming seas — which is the focus of Layton’s work. Of Tasmania’s original forest, only around five percent remains. Researchers think these plants have survived through natural variation and selection.

“There do seem to be individuals that are adapted and capable of living in the modern conditions in Tasmania that we have created through climate change,” Layton explains.

From this remaining pool of wild giant kelp, he and his colleagues have identified what Layton calls “super kelp” that may be more resilient against the effects of warming seas. From these he has harvested spores, embedding them in twine to be wound around the ropes that are rooted into the sea floor. The hope is that these super kelp spores will develop into saplings that will in turn set their own spores adrift on ocean currents, seeding new mini-forests nearby.

“For giant kelp restoration to work at the scale of the coastline, we’ll need to plant many of these seed patches,” Layton explains. “The idea is that over time, those will self-expand, and eventually coalesce — and there’s your giant kelp forest back.”

Other kelp restoration projects around the world are tackling different threats. In Santa Monica Bay, California, conservationists are trying to save local kelp forests from voracious purple urchins, whose population has exploded since a major predator — the sea otter — dramatically declined decades ago. The urchins’ unchecked appetite has contributed to the loss of three-quarters of the bay’s former kelp forest. But fishers are carefully hand-clearing urchins — the draw being that as kelp is restored, fisheries are too. So far they’ve managed to clear 52 acres, which the kelp forest has reclaimed.

“All we had to do is clear the urchins out of the way,” says Tom Ford, executive director of The Bay Foundation, which is leading the effort.

kelp“These kelp forests grow so fast and suck in tremendous amounts of carbon.” Credit: Amanda / Flickr

The project’s success has caused others to ponder its carbon sequestration potential, Ford says. The City of Santa Monica recently established a goal of reaching carbon neutrality by 2050, and asked The Bay Foundation how kelp restoration could factor into that. A nonprofit called Sustainable Surf has also launched a program enabling people to invest in the kelp restoration project to offset their own carbon footprints.

“These kelp forests grow so fast and suck in tremendous amounts of carbon,” Ford says. In California there’s a focus on preserving wild lands with carbon credits, he explains. But the uptick in regional wildfires means that land-based forests might no longer seem like the safest bet. “Now, working off the coast is becoming perhaps a more important option.”

Similarly, in the United Kingdom, a plan known as “Help Our Kelp” aims to restore a 70-square-mile tract of historic kelp forest along the country’s southern Sussex Coast. It has attracted the interest of two local councils and a water company, which are intrigued by its potential to provide a new carbon sink. “All three organizations are interested in carbon, but also interested in the wider benefits [of kelp forests],” explains Sean Ashworth, deputy chief fisheries and conservation officer at the Association of Inshore Fisheries and Conservation Authorities, a partner on the project.

Captured carbon?

Yet key questions remain about where all the stored carbon ends up. Trees stay in one place, so we can reasonably estimate how much carbon a forest stores. Kelp, on the other hand, can float off to unknown destinations. If it begins to decompose, its stored carbon may be released back into the atmosphere, explains Jordan Hollarsmith, a marine ecologist at Simon Fraser University and the Department of Fisheries and Oceans in Canada. “Truly removing that carbon from the global carbon budget would require that those kelp fronds somehow be buried, or transported to the deep sea,” she says.

In fact, emerging research is beginning to paint a picture of seaweed’s journey through the ocean. A 2016 study estimated that about 11 percent of global macroalgae is permanently sequestered in the ocean. The bulk of that, about 90 percent, is deposited in the deep sea, while the rest sinks into coastal marine sediments.

kelp“If the algae reaches below the 1,000-meter horizon, it is locked away from exchange with the atmosphere over extended time scales, and can be considered permanently sequestered.” Credit: Amanda / Flickr

“If the algae reaches below the 1,000-meter horizon, it is locked away from exchange with the atmosphere over extended time scales, and can be considered permanently sequestered,” says Dorte Krause-Jensen, a professor of marine ecology at Aarhus University in Denmark and author on the 2016 study along with Duarte. Still, the challenge of tallying this up remains. Compared with mangroves, seagrasses and salt marshes, which deposit carbon directly and reliably into the sediments below, the inherent changeability of a kelp forest makes the sequestration harder to accurately quantify. But this could change, Duarte say, if kelp forests came under strict human management — something that’s already happening with smaller species of seaweed that are being farmed worldwide for food products and fertilizer.

Future Kelp

Could we similarly bring vast kelp forests under human control for the benefit of the planet? Brian Von Herzen, executive director of the nonprofit The Climate Foundation, thinks so. The Climate Foundation is a partner on Cayne Layton’s project for climate-resilient kelp, and Von Herzen is a major player in the field of “marine permaculture,” a type of open-ocean seaweed farming that mimics wild kelp forests to regenerate marine ecosystems, boost food security and sequester carbon.

Central to Von Herzen’s vision is an array on which kelp would grow, hovering 82 feet below the ocean’s surface. Using solar, wind and wave energy to drive their motion, hoses fixed beneath the structure would siphon up colder, nutrient-rich water from the depths below. This cool water infusion would re-create an ideal micro-environment for the tethered kelp to thrive; the kelp would then oxygenate the water and create new fish habitat — all while capturing carbon, Von Herzen explains.

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While these deepwater kelp forests are only hypothetical, Von Herzen is currently trying out prototype arrays in the Philippines to help make seaweed farming more resilient to climate change. Seaweed farmers there have suffered major losses as a result of warm ocean currents that sweep in and decimate their crops. But with the upwelling of cooler water generated by the new arrays, seaweed is starting to flourish again.

This project, and others being developed off the coasts of Europe and the U.S., are laying the groundwork for Von Herzen’s ultimate ambition: To dramatically scale up kelp arrays, eventually spanning great tracts of deep ocean where they could collectively absorb billions of tons of CO2 while also providing food security in the form of shellfish aquaculture and fish habitat and providing what he calls “ecosystem life support.”

Kelp could be buried in the deep sea to sequester carbon or be harvested to produce low-emissions biofuel and fertilizers, he says. “We use the thriving wild kelp forest as the ecosystem model for what we can scale in the oceans,” Von Herzen says.

Current benefits

On the back of her research, Krause-Jensen is optimistic about the carbon sequestration potential of kelp and the possibility that it could be dramatically enlarged by sustainable farming. But practically speaking, in nations like Australia and the United States, Duarte says, “it’s harder to get a concession for a seaweed farm, than for oil and gas exploration.” And global systems for providing compensation for sequestering carbon are not yet set up to accommodate kelp.

Christophe Jospe, the chief development officer at Nori, a company that is working to make it easier to fund carbon removal initiatives, argues that with such a powerful sequestration tool at our disposal, we should accelerate its acceptance — even if seaweed farmers are only able to guarantee sequestration for, say, 10 years.

“We are throwing ourselves into a heated environmental debate where people say, well, that’s not permanent. But nothing is permanent — and it’s the reservoir of carbon that we need to increase because of the climate crisis that we’re in,” he says. “So actually, it’s a huge environmental value for a program to ensure 10 years of permanence.”

There are signs that things are gradually moving in that direction. Working with Oceans 2050, a global alliance to restore the world’s oceans led by Alexandra Cousteau, Duarte is now helping to develop a carbon credit program that could be applied to seaweed farming. This makes it possible to imagine a world where we might one day invest carbon credits in kelp farms or where wild forest restoration might count as mitigation.

Meanwhile, back in Tasmania, Layton continues to watch over his nurseries of infant kelp, and he urges us to be cognizant of what kelp forests are already doing for us, right now.

“They’re exactly like forests on land. There aren’t many people questioning their value,” he says. “Some people might not be interested in seaweed. But they may be interested in fishing, or their beachfront property not getting washed away, or making sure that their coastal waters are clean. All of those things are intimately tied to kelp forests.”

This story originally appeared in Ensia.

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