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This federal permit used to fast-track pipelines. Now it’s threatening them.

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This federal permit used to fast-track pipelines. Now it’s threatening them.

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How do you save clean energy? This company plans to pump it underground.

New York. California. Hawaii. Colorado. Maine. All of these states and a few others want to get their electric grids running mostly if not entirely on renewable energy in the next few decades. As they ramp up wind and solar farm projects, they’re also going to need ways to store surplus energy to use when the wind isn’t blowing and the sun isn’t shining.

Start-ups focused on energy storage are scrambling for the cash and opportunities to demonstrate that their system will hold more than a few hours worth of charge. Last week, Quidnet, a Houston, Texas-based company, announced that it lined up a contract with the New York State Energy and Research Development Authority to construct a pilot project for its “Geomechanical Pumped Storage” technology.

Quidnet’s system is a new take on pumped-hydro storage, an existing technology that takes excess energy from the grid during periods of low electricity demand and uses it to pump water up a hill from a lower reservoir to an upper reservoir. Later, when energy is needed, the water is released back down to spin a turbine and generate electricity. Pumped-hydro accounts for 95 percent of the existing energy storage used by utilities in the U.S., but most of these systems were built in the 1970s and 1980s. That’s because it’s expensive and politically difficult to set aside enough land in the mountains to build new pumped-hydropower reservoirs.

Joe Zhou, the CEO of Quidnet, said the company’s technology depends on the same supply chains and expertise used by existing pumped-hydro systems, but gets around those stickier land-use problems by pushing the water underground. To “charge” the battery, the system draws excess energy from the grid to suck water from a holding pond into an underground well, where it’s stored under pressure in the rock. When the energy is needed, the water is released and rushes back to the surface, spinning a turbine similar to those deployed in traditional pumped-hydro systems. The pilot project in New York aims to store 10 hours worth of energy.

Zhou said that Quidnet, which is backed by Bill Gates’ Breakthrough Energy Ventures, could deploy these systems in roughly 60 percent of U.S. power markets today, based on the type and structure of rock required for the wells. The conditions are especially ripe in New York. “There’s a tremendous, tremendous energy storage resource in New York. I think it can really help the state advance its clean energy goals,” Zhou told Grist.

Quidnet is one of several companies piloting new energy storage systems across the country. In Vermont, Highview Power plans to build the first liquid air storage project in the U.S that would store more than eight hours of energy, using power from the grid to liquify air and store it in tanks. One of the most anticipated projects is Form Energy’s “aqueous air battery system” in Minnesota, aimed at storing and delivering 150 hours of power to the grid, though how it works remains a bit of a mystery.

Today, with pilot projects that store just 8-10 hours, each of these storage solutions are in hot competition with cheap, efficient lithium-ion batteries, which average around 4 hours of storage. “The closer you play to lithium-ion’s durations, the more lithium-ion can compete,” said Dan Finn-Foley, head of energy storage at the consulting firm Wood Mackenzie. “The reason that all these alternative technologies think that they can catch lithium-ion is due to how the different technologies scale.”

If you have a grid that depends on wind energy and the wind slows down for weeks at a time, you might need hundreds of hours of storage. Increasing the storage capacity of a lithium-ion system is costly; to double it, you need to install another battery, hence doubling the price. Quidnet’s technology, on the other hand, might be able to scale up more cost-efficiently by increasing the size of a surface pond or the volume of a well. That’s how technology like Quidnet’s could ultimately differentiate itself, Finn-Foley explained.

“The fact that they have a pilot program is encouraging,” Finn-Foley said. “You need to be able to show your price point and show your duration and show your efficiencies and demonstrate it. So that’s the next big step, you know, it puts them into the conversation.”

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How do you save clean energy? This company plans to pump it underground.

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How do you save clean energy? This company plans to pump it underground.

New York. California. Hawaii. Colorado. Maine. All of these states and a few others want to get their electric grids running mostly if not entirely on renewable energy in the next few decades. As they ramp up wind and solar farm projects, they’re also going to need ways to store surplus energy to use when the wind isn’t blowing and the sun isn’t shining.

Start-ups focused on energy storage are scrambling for the cash and opportunities to demonstrate that their system will hold more than a few hours worth of charge. Last week, Quidnet, a Houston, Texas-based company, announced that it lined up a contract with the New York State Energy and Research Development Authority to construct a pilot project for its “Geomechanical Pumped Storage” technology.

Quidnet’s system is a new take on pumped-hydro storage, an existing technology that takes excess energy from the grid during periods of low electricity demand and uses it to pump water up a hill from a lower reservoir to an upper reservoir. Later, when energy is needed, the water is released back down to spin a turbine and generate electricity. Pumped-hydro accounts for 95 percent of the existing energy storage used by utilities in the U.S., but most of these systems were built in the 1970s and 1980s. That’s because it’s expensive and politically difficult to set aside enough land in the mountains to build new pumped-hydropower reservoirs.

Joe Zhou, the CEO of Quidnet, said the company’s technology depends on the same supply chains and expertise used by existing pumped-hydro systems, but gets around those stickier land-use problems by pushing the water underground. To “charge” the battery, the system draws excess energy from the grid to suck water from a holding pond into an underground well, where it’s stored under pressure in the rock. When the energy is needed, the water is released and rushes back to the surface, spinning a turbine similar to those deployed in traditional pumped-hydro systems. The pilot project in New York aims to store 10 hours worth of energy.

Zhou said that Quidnet, which is backed by Bill Gates’ Breakthrough Energy Ventures, could deploy these systems in roughly 60 percent of U.S. power markets today, based on the type and structure of rock required for the wells. The conditions are especially ripe in New York. “There’s a tremendous, tremendous energy storage resource in New York. I think it can really help the state advance its clean energy goals,” Zhou told Grist.

Quidnet is one of several companies piloting new energy storage systems across the country. In Vermont, Highview Power plans to build the first liquid air storage project in the U.S that would store more than eight hours of energy, using power from the grid to liquify air and store it in tanks. One of the most anticipated projects is Form Energy’s “aqueous air battery system” in Minnesota, aimed at storing and delivering 150 hours of power to the grid, though how it works remains a bit of a mystery.

Today, with pilot projects that store just 8-10 hours, each of these storage solutions are in hot competition with cheap, efficient lithium-ion batteries, which average around 4 hours of storage. “The closer you play to lithium-ion’s durations, the more lithium-ion can compete,” said Dan Finn-Foley, head of energy storage at the consulting firm Wood Mackenzie. “The reason that all these alternative technologies think that they can catch lithium-ion is due to how the different technologies scale.”

If you have a grid that depends on wind energy and the wind slows down for weeks at a time, you might need hundreds of hours of storage. Increasing the storage capacity of a lithium-ion system is costly; to double it, you need to install another battery, hence doubling the price. Quidnet’s technology, on the other hand, might be able to scale up more cost-efficiently by increasing the size of a surface pond or the volume of a well. That’s how technology like Quidnet’s could ultimately differentiate itself, Finn-Foley explained.

“The fact that they have a pilot program is encouraging,” Finn-Foley said. “You need to be able to show your price point and show your duration and show your efficiencies and demonstrate it. So that’s the next big step, you know, it puts them into the conversation.”

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How do you save clean energy? This company plans to pump it underground.

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Supreme Court clears way for Atlantic Coast Pipeline to cross Appalachian Trail

The Atlantic Coast Pipeline can cross under the Appalachian Trail, the United States Supreme Court ruled on Monday. By a 7 to 2 margin, the court reversed a lower court’s decision and upheld a permit granted by the U.S. Forest Service that the project’s developers could tunnel under a section of the iconic wilderness in Virginia.

The court took the case after Dominion Energy, one of the largest utilities in the South, appealed a Fourth Circuit Court of Appeals ruling last year that said the U.S. Forest Service violated federal law when it approved the pipeline to cross the Appalachian Trail. The issue, the lower court ruled: It was the National Park Service’s call to approve that request. (Dominion, based in Richmond, Virginia, is the lead developer on the Atlantic Coast Pipeline, or ACP, project; North Carolina utility Duke Energy, as well as Southern Company, also own shares.)

The case looked at whether the Forest Service had authority under the Mineral Leasing Act to grant rights-of-way within national forest lands traversed by the Appalachian Trail. “A right-of-way between two agencies grants only an easement across the land, not jurisdiction over the land itself,” Chief Justice John Roberts wrote for the court’s opinion. So the Forest Service had enough authority over the land to grant the permit. The dissent, by Justices Sonia Sotomayor and Elena Kagan, argued that the “outcome is inconsistent with the language of three statutes, longstanding agency practice, and common sense.”

According to The Washington Post, the plaintiffs in this case, both Dominion and the Forest Service, had argued that other pipelines cross the Appalachian Trail a total of 34 times. “The Atlantic Coast Pipeline will be no different,” Dominion said in a statement after the decision. “To avoid impacts to the Trail, the pipeline will be installed hundreds of feet below the surface and emerge more than a half-mile from each side of the Trail.”

The decision could set an important precedent for public lands, said Greg Buppert, senior attorney for the Southern Environmental Law Center, or SELC, which is involved in multiple lawsuits against the pipeline. This particular Appalachian Trail section on federal land, which is remote, rugged, and wild, “deserves the highest protection the law provides,” according to Buppert. But this ruling likely signals to developers of the 300-mile Mountain Valley Pipeline that they could have an easier time crossing under the trail at a separate location in Virginia; attorneys for the nearly-complete project called it a “key missing link,” the Roanoke Times reported.

Though this decision is significant, it doesn’t determine the ultimate fate of the Atlantic Coast Pipeline. While the Supreme Court has granted the Forest Service the ability to allow the project to cross the Appalachian Trail, the Fourth Circuit Court of Appeals’ striking down of the Forest Service’s permit still stands. Dominion is required to look at other routes that avoid parcels of protected federal land, and the Forest Service is prohibited from approving a route across these lands, if reasonable alternatives exist, according to Buppert.

The view west along the Appalachian Trail at Cedar Cliffs, in Virginia, where the Atlantic Coast Pipeline would be tunneled under the historic trail and the Blue Ridge Parkway. Norm Shafer / Getty Images

Dominion still requires eight more permits for the 600-mile pipeline route, including an air pollution permit from Virginia regulators for a controversial compressor station in Union Hill, a historically black community. It also still needs approval to cross the scenic Blue Ridge Parkway and a new biological opinion from the U.S. Fish and Wildlife Service about endangered species that were not taken into consideration in the original environmental impact statement. Several landowners along the route through West Virginia, Virginia, and North Carolina are also still fighting to retain their property from eminent domain claims.

That means five-and-a-half years after the project was proposed, Buppert said, “there’s significant uncertainty about what the ACP route even is right now.”

In addition to crossing protected federal lands, the current route traverses steep mountains and many rural, low-income areas and communities of color, including Union Hill, a town settled by freed slaves after the Civil War. “These risks were known when it was proposed, but developers elected to push it forward anyway, and used political pressure on agencies to move their permits through faster,” Buppert said. “Not surprisingly, those haven’t withstood judicial reviews.”

Dominion spokesperson Samantha Norris did not respond to specific questions about the route, but said in an email the company is “working diligently with the agencies to resolve our pending permits so we can resume construction later this year” and complete it by 2022. “We remain fully committed to the project for the good of our economy and to support the transition to clean energy,” she said. “And we do not anticipate any changes to the route.”

Construction officially halted in December 2018 over the Appalachian Trail permit, with less than 10 percent of the pipeline in the ground. Opponents applauded that development, but continue to report problems with some construction sites. On behalf of 15 environmental and community groups, SELC lawyers filed a motion on June 1 asking the Federal Energy Regulatory Commission, or FERC, to supplement its environmental impact statement from its 2017 approval of the pipeline. The motion states that “substantial erosion, sedimentation, and slope failures have occurred” along the route, and that FERC needs to take climate change and other issues into account in updating its assessment.

The U.S. is in the midst of a historic pipeline boom to create infrastructure for the excess stores of natural gas coming from shale regions in Appalachia and West Texas, and FERC has historically approved nearly every pipeline project that has come across its desk. Despite massive protests breaking out in 2016 to try to stop the Dakota Access Pipeline passing through the Standing Rock Sioux Reservation, dozens of new pipeline projects across the country are still being proposed, FERC is still approving them, and state lawmakers have passed laws to crack down on anti-pipeline demonstrations.

Opponents of the Atlantic Coast Pipeline have been fighting the project for six years and have won several important legal cases recently. A federal appeals court last month rejected the Trump administration’s request to revive the Army Corps of Engineers’ nationwide permit program for new oil and gas pipelines. The ruling prohibits the agency from allowing companies to fast-track projects by obtaining a single permit for all its water crossings, rather than individual permits for each one. The decision could further delay the Atlantic Coast Pipeline, which had its nationwide water crossings permit suspended in 2018. The project has over a thousand stream, river, and wetland crossings. In the Calfpasture River watershed in Virginia alone, Buppert said, the current route includes 71.

The community of Union Hill has also successfully challenged part of the project on the grounds that it could cause negative public health impacts. Developers plan to build one of three pipeline compressor stations — which keep natural gas flowing through the pipe — there. In January, a federal court ruled Virginia’s Air Pollution Control Board’s review of the station was “arbitrary and capricious.” The judge overturned the permit, saying the “failure to consider the disproportionate impact on those closest to the compressor station resulted in a flawed analysis.” She, along with two of her colleagues, ordered the board to reconsider the case.

Members of the community group Friends of Buckingham County, where Union Hill is located, are concerned residents lack enough information about Dominion’s new air permit application — especially during the COVID-19 pandemic — since many lack broadband access. Chad Oba, one of the group’s organizers, said they are focusing on longer-term solutions, too, like making sure the board is well-versed in environmental justice issues. (In addition, they want to keep the board apolitical: In 2018, Virginia’s Democratic governor, Ralph Northam, removed two regulators from the board who were leaning against the permit).

The pandemic has also thrown a wrench in the work of Friends of Nelson County, another Virginia group that opposes the pipeline. About 45 miles of the Appalachian Trail cross through the county; this the contested crossing is on its border in the Blue Ridge Mountains. “The most important thing we do is to inform and educate the public about all dimensions of the pipeline and related matters,” said president Doug Wellman. The organization does a lot of in-person outreach at farmers’ markets and public meetings. Now they’re trying to do it all virtually. Later this year, they plan to launch a major campaign about the major potential dangers of the pipeline, including primers on landowner rights and eminent domain.

Due to the delays in its construction, the Atlantic Coast Pipeline’s price tag has swelled by at least $3 billion to a total of $8 billion. Since federal regulators allow pipeline companies up to a 14 percent return on investment, payable by its customers, Dominion and Duke, who are the buyers of the natural gas in addition to being the project’s developers, can turn a profit by passing construction costs onto ratepayers in a region where they have monopolies.

These costs “will take decades to recover,” said Ryke Longest, co-director of the Environmental Law and Policy Clinic at Duke University. And while they wait to be made whole, utilities like Dominion will eschew investing in other programs like energy efficiency and renewables, even as states in the region, including Virginia and North Carolina, move forward with clean energy and climate change legislation.

“The real problem with the structure of our energy system is that it encourages large-scale construction projects,” Longest said. “It’s not thinking of energy as a public service business, which is what it’s supposed to be.”


Lyndsey Gilpin is Durham, North Carolina-based journalist and the editor of Southerly, an independent, non-profit media organization that covers the intersection of ecology, justice, and culture in the American South.

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Supreme Court clears way for Atlantic Coast Pipeline to cross Appalachian Trail

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Birdology – Sy Montgomery

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Birdology

Adventures with a Pack of Hens, a Peck of Pigeons, Cantankerous Crows, Fierce Falcons, Hip Hop Parrots, Baby Hummingbirds, and One Murderously Big Living Dinosaur

Sy Montgomery

Genre: Biology

Price: $1.99

Publish Date: April 6, 2010

Publisher: Atria Books

Seller: SIMON AND SCHUSTER DIGITAL SALES INC


Meet the ladies: a flock of smart, affectionate, highly individualistic chickens who visit their favorite neighbors, devise different ways to hide from foxes, and mob the author like she’s a rock star. In these pages you’ll also meet Maya and Zuni, two orphaned baby hummingbirds who hatched from eggs the size of navy beans, and who are little more than air bubbles fringed with feathers. Their lives hang precariously in the balance—but with human help, they may one day conquer the sky. Snowball is a cockatoo whose dance video went viral on YouTube and who’s now teaching schoolchildren how to dance. You’ll meet Harris’s hawks named Fire and Smoke. And you’ll come to know and love a host of other avian characters who will change your mind forever about who birds really are. Each of these birds shows a different and utterly surprising aspect of what makes a bird a bird—and these are the lessons of Birdology : that birds are far stranger, more wondrous, and at the same time more like us than we might have dared to imagine. In Birdology, beloved author of The Good Good Pig Sy Montgomery explores the essence of the otherworldly creatures we see every day. By way of her adventures with seven birds—wild, tame, exotic, and common—she weaves new scientific insights and narrative to reveal seven kernels of bird wisdom. The first lesson of Birdology is that, no matter how common they are, Birds Are Individuals, as each of Montgomery’s distinctive Ladies clearly shows. In the leech-infested rain forest of Queensland, you’ll come face to face with a cassowary—a 150-pound, man-tall, flightless bird with a helmet of bone on its head and a slashing razor-like toenail with which it (occasionally) eviscerates people—proof that Birds Are Dinosaurs. You’ll learn from hawks that Birds Are Fierce; from pigeons, how Birds Find Their Way Home; from parrots, what it means that Birds Can Talk; and from 50,000 crows who moved into a small city’s downtown, that Birds Are Everywhere. They are the winged aliens who surround us. Birdology explains just how very "other" birds are: Their hearts look like those of crocodiles. They are covered with modified scales, which are called feathers. Their bones are hollow. Their bodies are permeated with extensive air sacs. They have no hands. They give birth to eggs. Yet despite birds’ and humans’ disparate evolutionary paths, we share emotional and intellectual abilities that allow us to communicate and even form deep bonds. When we begin to comprehend who birds really are, we deepen our capacity to approach, understand, and love these otherworldly creatures. And this, ultimately, is the priceless lesson of Birdology : it communicates a heartfelt fascination and awe for birds and restores our connection to these complex, mysterious fellow creatures.

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Birdology – Sy Montgomery

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On Trails – Robert Moor

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On Trails

An Exploration

Robert Moor

Genre: Nature

Price: $1.99

Publish Date: July 12, 2016

Publisher: Simon & Schuster

Seller: SIMON AND SCHUSTER DIGITAL SALES INC


New York Times Bestseller • Winner of the National Outdoor Book Award • Winner of the Saroyan International Prize for Writing • Winner of the Pacific Northwest Book Award • “The best outdoors book of the year.” — Sierra Club From a talent who’s been compared to Annie Dillard, Edward Abbey, David Quammen, and Jared Diamond, On Trails is a wondrous exploration of how trails help us understand the world—from invisible ant trails to hiking paths that span continents, from interstate highways to the Internet. While thru-hiking the Appalachian Trail, Robert Moor began to wonder about the paths that lie beneath our feet: How do they form? Why do some improve over time while others fade? What makes us follow or strike off on our own? Over the course of seven years, Moor traveled the globe, exploring trails of all kinds, from the miniscule to the massive. He learned the tricks of master trail-builders, hunted down long-lost Cherokee trails, and traced the origins of our road networks and the Internet. In each chapter, Moor interweaves his adventures with findings from science, history, philosophy, and nature writing. Throughout, Moor reveals how this single topic—the oft-overlooked trail—sheds new light on a wealth of age-old questions: How does order emerge out of chaos? How did animals first crawl forth from the seas and spread across continents? How has humanity’s relationship with nature and technology shaped world around us? And, ultimately, how does each of us pick a path through life? Moor has the essayist’s gift for making new connections, the adventurer’s love for paths untaken, and the philosopher’s knack for asking big questions. With a breathtaking arc that spans from the dawn of animal life to the digital era, On Trails is a book that makes us see our world, our history, our species, and our ways of life anew.

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On Trails – Robert Moor

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The Particle at the End of the Universe – Sean Carroll

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The Particle at the End of the Universe

How the Hunt for the Higgs Boson Leads Us to the Edge of a New World

Sean Carroll

Genre: Physics

Price: $1.99

Publish Date: November 13, 2012

Publisher: Penguin Publishing Group

Seller: PENGUIN GROUP USA, INC.


Winner of the prestigious 2013 Royal Society Winton Prize for Science Books “A modern voyage of discovery.” —Frank Wilczek, Nobel Laureate, author of The Lightness of Being The Higgs boson is one of our era’s most fascinating scientific frontiers and the key to understanding why mass exists. The most recent book on the subject, The God Particle , was a bestseller. Now, Caltech physicist Sean Carroll documents the doorway that is opening—after billions of dollars and the efforts of thousands of researchers at the Large Hadron Collider in Switzerland—into the mind-boggling world of dark matter. The Particle at the End of the Universe has it all: money and politics, jealousy and self-sacrifice, history and cutting-edge physics—all grippingly told by a rising star of science writing.

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The Particle at the End of the Universe – Sean Carroll

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Obama’s Recovery Act breathed life into renewables. Now they need rescuing.

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Obama’s Recovery Act breathed life into renewables. Now they need rescuing.

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The Book of Eels – Patrik Svensson

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The Book of Eels

Our Enduring Fascination with the Most Mysterious Creature in the Natural World

Patrik Svensson

Genre: Life Sciences

Price: $14.99

Expected Publish Date: May 26, 2020

Publisher: Ecco

Seller: HARPERCOLLINS PUBLISHERS


Part H Is for Hawk, part The Soul of an Octopus, The Book of Eels is both a meditation on the world’s most elusive fish—the eel—and a reflection on the human condition Remarkably little is known about the European eel, Anguilla anguilla. So little, in fact, that scientists and philosophers have, for centuries, been obsessed with what has become known as the “eel question”: Where do eels come from? What are they? Are they fish or some other kind of creature altogether? Even today, in an age of advanced science, no one has ever seen eels mating or giving birth, and we still don’t understand what drives them, after living for decades in freshwater, to swim great distances back to the ocean at the end of their lives. They remain a mystery. Drawing on a breadth of research about eels in literature, history, and modern marine biology, as well as his own experience fishing for eels with his father, Patrik Svensson crafts a mesmerizing portrait of an unusual, utterly misunderstood, and completely captivating animal. In The Book of Eels, we meet renowned historical thinkers, from Aristotle to Sigmund Freud to Rachel Carson, for whom the eel was a singular obsession. And we meet the scientists who spearheaded the search for the eel’s point of origin, including Danish marine biologist Johannes Schmidt, who led research efforts in the early twentieth century, catching thousands upon thousands of eels, in the hopes of proving their birthing grounds in the Sargasso Sea. Blending memoir and nature writing at its best, Svensson’s journey to understand the eel becomes an exploration of the human condition that delves into overarching issues about our roots and destiny, both as humans and as animals, and, ultimately, how to handle the biggest question of all: death. The result is a gripping and slippery narrative that will surprise and enchant.

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The Book of Eels – Patrik Svensson

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Forget planting trees. This company is funding 4 far-out carbon removal projects.

Last August, a San Francisco–based tech startup called Stripe made a bold climate promise. The company, which makes software that enables online payments and is valued at $36 billion, was already investing in energy-efficiency projects to reduce its carbon footprint. It was also paying for carbon offsets for the emissions that it couldn’t avoid, from things like business flights and the natural gas burned to heat its offices. But Stripe wanted to go even further to take action on climate change. The company announced it would spend an additional $1 million annually on emerging carbon removal technologies, bringing its carbon balance sheet into the black.

The announcement kicked off a vetting process in which Stripe solicited proposals and consulted with scientists to evaluate them. On Monday, it delivered on its promise, revealing its first four winners, which will be receiving about $250,000 each.

Though the amounts are small, the gesture is huge. The Intergovernmental Panel on Climate Change has said that in order to prevent catastrophic climate change, we’ll need to start actively pulling carbon out of the carbon cycle and permanently sequestering it. But a lot of the tools available to do so are still nascent and expensive, and will require the kind of leap-of-faith buy-in that Stripe is offering to help them scale up.

The carbon removal technologies Stripe chose are early stage, and currently remove carbon at a cost of between $75 and $775 per ton — a far cry from common carbon offset projects like forest conservation and methane capture from landfills, which typically cost less than $10 per ton. Stripe’s $1 million will only sequester about 6,500 tons of CO2, assuming the earliest-stage projects it chose actually work.

Swiss-based ClimeWorks has the most established technology of the bunch, and is also the most expensive. ClimeWorks uses renewable energy to power machines that capture CO2 directly from the air and inject it deep underground, where it reacts with rock formations and hardens. The company says its pilot project will bury 50 tons of CO2 in 2020, and it’s in the process of developing a larger plant that will capture several thousand tons of CO2 per year.

Charm Industrial’s bio-oil, produced from biomass, will be injected underground Charm Industrial

Stripe also chose CarbonCure, a Canadian company that takes CO2 sourced from industrial emitters and incorporates it into concrete.

A third company, Charm Industrial, will use the money to test the viability of injecting bio-oil underground — sort of like reverse oil drilling. Bio-oil is a carbon-rich fluid produced by burning biomass like corn husks and rice straw that typically rot in the field; burying it underground removes it from the carbon cycle.

The fourth winner is Project Vesta, a startup founded by a guy who also markets supplements that allegedly enhance brain function. Project Vesta is working on a pilot study to prove the safety and efficacy of spreading a mineral called olivine on sandy beaches, where waves will break the olivine down, speeding up its ability to pull CO2 from the air.

If you’re thinking that some of these projects sound a little out there, you’re not alone. Some climate hawks and scientists have raised their eyebrows at the announcement. “I question whether the companies that they are supporting can scale,” commented Jigar Shah, president of the clean energy investment firm Generate Capital, on Twitter. Volcanologist Erik Klemetti voiced concern that Project Vesta could have unintended ecosystem consequences.

But Jane Zelikova, chief scientist at Carbon180, a nonprofit focused on carbon removal, applauded Stripe for being a leader in the space.

“They’re not the only company thinking about negative emissions or carbon removal,” Zelikova said. “But they’re certainly the first ones essentially saying, ‘We’ll pay any price per ton, we want to move this whole field forward.’ I think that’s really awesome.”

Zelikova’s expertise is in soil carbon sequestration, and she was one of the scientists hired by Stripe as consultants to review submissions. Ultimately the company did not go with any soil-based carbon removal projects, but Zelikova praised Stripe for seeking expert opinion and outside analysis and for making the entire process transparent. Stripe has shared its evaluation criteria online and encouraged other companies to use it, in addition to making all of the proposals it received available on GitHub.

“That is very impressive and I think very rare, the level of transparency and cooperation,” said Zelikova. “I hope they serve as a template for how other people can do something similar.”

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Forget planting trees. This company is funding 4 far-out carbon removal projects.

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