carbon removal

RepAir Carbon is making carbon removal machines inspired by batteries

In the span of a decade, direct air capture technology that draws CO2 out of the atmosphere has gone from wildly expensive to somewhat expensive. Companies like Microsoft, which set a target to eliminate its emissions by 2030, is happy to pay more to get the ball rolling. But smaller companies would still balk at […]

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Xprize Carbon awarded to a dirt simple carbon removal technology

Sometimes the simpler idea is the winner. That’s certainly the case with the winner of the Xprize Carbon Removal competition, which was announced on Wednesday. Mati Carbon walked away with the $50 million grand prize for its enhanced rock weathering program that locks carbon in soils for thousands of years. The Musk Foundation underwrote the

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Carbon removal startup Holocene bought by oil and gas giant Occidental

Occidental has bought Holocene, marking the second direct air capture startup the fossil fuel company has bought in two years. The deal was executed through Oxy Low Carbon Ventures, a subsidiary of the oil and gas company, for an undisclosed amount. HeatMap first reported the news. Holocene had been racing to advance its amino acid-based

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Microsoft inks massive carbon removal deal powered by a paper mill

Microsoft announced on Friday that it is buying 3.7 million metric tons of carbon removal credits from CO280, a project developer that works with pulp and paper mills. The purchase covers 12 years of emissions from CO280’s first carbon capture project at a mill on the Gulf Coast. CO280 expects the facility to start capturing

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Chestnut Carbon gets $160M to turn old farms into forests

Nature-based carbon removal startup Chestnut Carbon has raised $160 million in Series B financing, the company told TechCrunch. The startup buys marginal and degraded farmland, plants them with native trees, and harvests the resulting carbon credits. Carbon credits have become a hot commodity, especially among tech companies looking to offset skyrocketing emissions caused in part

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Microsoft signs massive carbon credit deal with reforestation startup Chestnut Carbon

Microsoft announced Thursday that it’s buying over 7 million tons of carbon credits from Chestnut Carbon. The 25-year deal would enable Chestnut Carbon to reforest 60,000 acres of land across Arkansas, Louisiana, and Texas, Axios reported. Recently, the tech company has struggled to rein in its carbon emissions as AI has driven a surge in

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Microsoft bets a carbon removal bake-off will help offset its skyrocketing AI emissions

Microsoft is in a pickle: It has committed to being carbon negative by 2030, but its emissions have skyrocketed more than 40% since 2020, thanks in part to its booming AI business. The company has bought a bunch of renewable power, but some emissions, like air travel, have been impossible to eliminate. What’s a Big

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Direct ocean capture may be the next frontier for carbon removal

For the past few years, direct air capture has been seen as a potential silver bullet to the climate crisis. But now a startup originally from the snowy wastes of Iceland is taking a new approach: removing carbon from seawater.  The industry standard for removing carbon with direct air capture methods costs anywhere between $230

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Applied Carbon’s farm robot turns plant waste into biochar to capture CO2

It’s incredibly easy to dump carbon into the atmosphere and accelerate climate change. It’s a lot harder to take it out. Startups are experimenting with massive industrial systems to draw the pollutant out of the air, with facilities costing hundreds of millions of dollars to construct. That has some other founders thinking, why not use

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