Research

Articles, tools, and commentary on
climate services and solutions.
Highlights
Feb 10 2026
Open Climate Risk
We developed a tool to explore a new, open source dataset of wildfire risk estimates across the contiguous United States.
Map toolExplainer articleFAQ

Jan 14 2026
We’ve added project boundary data from 500 forest offset projects to our database of offset data.

Tools
Open Climate Risk
Mapping wildfire risk to buildings.
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Articles
Feb 10 2026
Making climate risk data open
We’re releasing Open Climate Risk, a platform which transparently provides present-day and future wildfire risks for buildings across the contiguous United States.
We’re releasing Open Climate Risk, a platform which transparently provides present-day and future wildfire risks for buildings across the contiguous United States.
Aug 27 2025
Scaling enhanced weathering in limed fields
Both agricultural liming and enhanced weathering spread crushed rocks on fields and have the potential to remove carbon from the atmosphere. We explore how modifying liming for carbon removal works — and whether markets are the best way to fund it.
Both agricultural liming and enhanced weathering spread crushed rocks on fields and have the potential to remove carbon from the atmosphere. We explore how modifying liming for carbon removal works — and whether markets are the best way to fund it.
Jun 04 2025
Mapping the efficiency of direct ocean removal
We collaborated with [C]Worthy to build a tool that will make it easier to see where a marine carbon removal approach called direct ocean removal is most efficient.
We collaborated with [C]Worthy to build a tool that will make it easier to see where a marine carbon removal approach called direct ocean removal is most efficient.
Mar 03 2025
Stakeholder views on independent CDR protocol review
We conducted a stakeholder survey showing broad agreement that independent review of CDR protocols is needed. However, there appear to be diverse views on the desired scope and function of such a review.
We conducted a stakeholder survey showing broad agreement that independent review of CDR protocols is needed. However, there appear to be diverse views on the desired scope and function of such a review.
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Commentary
Policy Briefs
Dec 02 2025
Policy Brief
Verra should address its hydropower offsets problem
If Verra cares about quality, they need to clean up their growing supply of excess hydropower credits.
Oct 21 2025
Policy Brief
Verra doesn’t have a good solution for excess crediting
Verra recently acknowledged the existence of millions of excess credits issued to the Kariba REDD+ project. Rather than resolving the issue, Verra’s proposed solution exposes a fundamental structural flaw in its offsets program.
Aug 21 2025
Policy Brief
Offsets provide few climate benefits and cost California hundreds of millions of dollars each year. When lawmakers reauthorize the state’s cap and trade program this fall, they should eliminate the use of offsets.
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Comment Letters
Oct 06 2025
California Air Resources Board re: SB 905 Implementation
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Publications
Dec 01 2024
Global Change Biology
Increasingly active wildfire seasons threaten the sustainability of forest-backed carbon offset programs
In 2024, wildfires burned a record number of forests participating in California's forest offset program, exposing the danger of relying on forests to slow climate change.
Dec 23 2022
Nature Plants
Economic and biophysical limits to seaweed farming for climate change mitigation
A paper using coupled seaweed growth and technoeconomic models to better understand the potential role of seaweed farming for carbon removal and biomass products.
Sep 15 2023
One Earth
Carbon offsets are incompatible with the Paris Agreement
For carbon offsets to support temperature stabilization under the Paris Agreement, nearly everything about them must change.
Sep 12 2022
Global Change Biology
An ex post analysis shows that credited carbon sequestration in California projects is likely non-additional. These findings illustrate the importance of using dynamic baseline controls to credit carbon.
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