Today we’re launching Open Climate Risk, a fully open option for U.S. building-level climate risk data. It’s unique because it allows you to see not only risk scores, starting with wildfire, but also the complete underlying dataset, methods, and codebase. carbonplan.org/research/cli...

Most carbon removal projects don’t pull CO₂ from the atmosphere instantly — there are temporal lags. We contributed to a new preprint showing why accounting for lags matters for both near-term warming and long-term temperature stabilization. 1/2 carbonplan.org/blog/cdr-tem...

Consistent temporal accounting supports credible CDR use. cdrxiv.org/preprint/302

We have a lot to learn about carbon removal, and we need to learn fast. Open science can help. I’m excited to share CDRXIV, a new platform for early-stage CDR research. Take a look — and if you're working on CDR, consider sharing your work: cdrxiv.org

Climate change is happening quickly. Solutions research needs to move at a speed that meets the challenge. We're launching @cdrxiv.org, a new preprint server for CDR research, because transparency and collaboration help move the field forward. Let’s make better CDR, together: cdrxiv.org

Want to know how fossil fuel companies use carbon offsets to claim they’re fighting climate change? We've updated OffsetsDB — our offsets database — to allow you to search by carbon credit user. Search "Shell" and see what offsets they're using and when. (1/4) carbonplan.org/research/off...

A Framework for Integrating Spatial Uncertainty into Critical Zone Models: Application to Enhanced Weathering. cdrxiv.org/preprint/334

Limited impact on oysters in first-of-its-kind field trial of marine carbon dioxide removal (mCDR) strategy. cdrxiv.org/preprint/326

Photosynthesis in Rivers as a Loss Pathway for ERW-Derived DIC and Alkalinity. cdrxiv.org/preprint/329

Assessing CO2 fluxes during enhanced weathering from soils through a mesocosm lens. cdrxiv.org/preprint/331

A year ago @freyachay.bsky.social and I started a big community debate with a piece suggesting that corn ethanol with CCS should not be considered carbon removal. In a new piece today we try and cut through the debate, arguing that "what is CDR" is the wrong question to ask: carbonplan.org/resea...

There’s an ongoing debate over what should “count” as CO₂ removal. In a new commentary with @hausfath.bsky.social, we break down key points of contention, proposed definitions, and why no definition offers a perfect path forward. (1/5) carbonplan.org/research/def...

What ever happened to transparency in solar geoengineering research? a 🧵 of reflections on our new opinion article in PNAS www.pnas.org/doi/10.1073/...

Just had a sample of the Eaton Fire ash that is in my driveway run on the department XRF. Is there titanium (new house paint)? Yup. Lead (old house paint)? You betcha. Heavy metals? Check. Treat that ash like it's toxic folks (because it is)

A group of current and former members of the expert panel of the carbon crediting industry's self-regulatory body, the ICVCM, have a post objecting to the ICVCM's approval of three tropical forest carbon REDD methodologies. A very timely and important read: www.oeko.de/blog/the-icv...

Hey people working on marine CO₂ removal (mCDR), post your preprints to CDRXIV (pronounced C-D Archive). 🌊

An All-Star roster of climate scientists cleared their throats recently and it was something to behold. Their message to Net-Zero experts in every sector? You're Doing It Wrong 🧪 www.bloomberg.com/news/article...

Ok, first train+decarb content of the day returns me to the first climate project I ever worked on: How to appropriately dispose of fossil assets that are decommissioned before end of life. It's a puzzle that's becoming ubiquitous, but mostly flying under the radar.🔌💡(1/20)

A veritable whos-who of the scientists behind our physical climate understanding of net-zero have a new paper in Nature, making the case for "Geological Net Zero" where fossil CO2 can only credibly counterbalanced by permanent removal: www.nature.com/artic...

In January, AB1305 will start requiring California companies to report which offsets they use. A few have already started making these disclosures, revealing big challenges — data is hard to find, often incomplete, and tough to analyze. Read our recommendations: 🧪 carbonplan.org/research/ab1...

What if you could click anywhere in the ocean and figure out where released alkalinity would go, how much it would change surface ocean pCO₂, and how much carbon dioxide removal (CDR) you would get? Now there's a way, from @cworthy.bsky.social and CarbonPlan. 🌊 carbonplan.org/research/oae...

We're looking for a Senior Software Engineer at @cworthy.bsky.social to help build a system to support standardization of carbon removal accounting and environmental impact assessments related to deployments of marine carbon dioxide removal (mCDR) technologies. Please share with your network. 🌊🧪

“These tech giants are poised to become some of the biggest energy users of the future…Ahead of that, they are working behind the scenes to shape a once-in-a-decade rewrite of the rules governing how pollution from power use is disclosed.” www.ft.com/content/2d6f...

We also aren’t the only people concerned about the lack of transparency in private climate risk prediction. Bloomberg also published a feature today that also found differences between companies in an analysis independent from ours. (8/8) www.bloomberg.com/graphics/202...

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...

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...

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.

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:

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.

🧵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

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...

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

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.

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...