Freya Chay

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Freya Chay

@freyachay.bsky.social

Thinking about climate change and decarbonization. Carbon Removal Lead at CarbonPlan. Proudly from Alaska!
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Enhanced rock weathering is a carbon removal technique gaining lots of attention, but we’re still figuring out best ways to do it. In collab with @climatejesper.bsky.social, we synthesized scientific results to explain what we know, and grapple with what we don’t. carbonplan.org/research/enh...
Does enhanced weathering work? We’re still learning. – CarbonPlancarbonplan.org A synthesis of carbon removal estimates from the enhanced weathering literature.
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Carbon credits are everywhere, but the data about where they come is hard to track down and difficult to work with. OffsetsDB is a new database that collects, standardizes, and provides daily updates of offset project data from five of the largest registries. carbonplan.org/research/off...
OffsetsDB – CarbonPlancarbonplan.org A harmonized database of carbon offset projects and credits.
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I wrote a pair of short blog posts on the climate value of temporary carbon storage, now available at the Kleinman Center for Energy Policy at Penn. Part 1 explains why temporary offsets are *not* equivalent to the permanent harms of CO2 emissions.
Why Temporary Carbon Storage in Forests Has Little Climate Value: Part 1 - Kleinman Center for Energ...kleinmanenergy.upenn.edu Energy policy research from the University of Pennsylvania
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Earlier this year I (with Frances Sawyer) published a paper suggesting the 45Q CCS tax credit is structured in a way that could incentivize huge costs + increased GHG emissions from the US power sector. DOE rebutted it, and we were allowed to reply. Those pieces are up today:
Reply to 'A commentary on "US power sector carbon capture and storage under the Inflation Reduction ...iopscience.iop.org
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Exclusive: UC researchers were tasked with finding carbon offsets the university system could rely on to cancel out emissions. But they couldn't. Now, all 10 campuses are being charged a carbon fee that will be invested into direct emissions reductions instead.
The University of California has all but dropped carbon offsets—and thinks you should, toowww.technologyreview.com It uncovered systemic problems with offset markets and recommended that the public university system focus on cutting its direct emissions instead.
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🧵In the newly published Best Practices Guide to Ocean Alkalinity Enhancement (OAE) Research, we make recommendations for monitoring, reporting, and verification (MRV), the multistep process to quantify the amount of CO₂ removed by OAE, a promising CO₂ removal technique. 1/5
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Carbon removal policy and net-zero governance researchers: please consider joining me in signing an open letter to EU policymakers from Carbon Market Watch on carbon removal safeguards. Letter text: drive.google.com/file/d/1_E9I... Sign-on form: forms.monday.com/forms/e2c0e9...
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I wrote about California Governor Gavin Newsom's ambivalence toward corporate climate accountability laws for @heatmap.news, drawing on his response to four new bills the state legislature sent to his desk this year. tl;dr one veto and two hostile signing statements that could chill implementation
Gavin Newsom Is Weaker on Climate When the Cameras Aren’t Rollingheatmap.news There’s a growing disconnect between the governor of California’s words and actions.
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Heidi Blake has a long piece in the New Yorker on carbon offsets. No matter how bad you think things are, the people involved in big projects keep telling us how much worse things actually are.
The Great Cash-for-Carbon Hustlewww.newyorker.com Offsetting has been hailed as a fix for runaway emissions and climate change—but the market’s largest firm sold millions of credits for carbon reductions that weren’t real.
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There is increasing evidence that the world has warmed faster over the past 15 years than it has since the 1970s. Surface records, ocean heat content, and the Earth's energy imbalance all support an acceleration of warming, as I argue in today's @nytimes.com: www.nytimes.com/2023/10/13/o...
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