Climate Curve contributes to decarbonizing the planet by identifying innovative climate leaders and deploying resources to advance solutions.
Global Warming Mitigation Project centers its giving on climate solutions that reduce, replace, or remove greenhouse gases, with a grantmaking model built around prizes and vetted climate projects. Its Keeling Curve Prize awards $50,000 grants to global projects, and the climate portfolio also includes the Climate Curve Prize: Methane, which supports work on methane emissions in food and waste systems. The foundation’s active programs show a strong emphasis on selection, scoring, and visibility for climate organizations rather than broad open-ended philanthropy. Recent grants point to a mix of mitigation pathways. Blue Forest received $50,000 in 2025, while Project Vesta PBC, Health In Harmony, C40 Cities Climate Leadership Group Inc, Sanergy Inc, and Standearth each received $50,000 in the recent record. The portfolio also includes $25,000 grants to organizations such as GreenMax Capital Advisors, BasiGo Inc, Symbrosia Inc, Enzinc, Nitricity Inc, and Air Company. Taken together, the pattern suggests a funder that supports both established climate nonprofits and earlier-stage climate ventures working across emissions reduction, carbon sinks, clean energy, and climate finance.
In methane mitigation, Global Warming Mitigation Project gave $25,000 to Symbrosia Inc for climate change achievement, and its Climate Curve Prize: Methane is explicitly aimed at projects that reduce methane emissions in food and waste systems. That combination shows a specific interest in methane reduction and monitoring. The foundation also backs carbon removal and carbon sinks. Project Vesta PBC received $50,000 for climate change achievement, aligning with the organization’s focus on greenhouse gas removal and carbon sinks. Transportation and clean energy appear as another thread. BasiGo Inc received $25,000 for climate change achievement, while Itselectric received $50,000 for climate change achievement. On the finance side, GreenMax Capital Advisors received $25,000, matching the funder’s climate finance focus. A separate capacity-building channel exists through the Constellations Fellowship Program, which connects college students and recent graduates with Keeling Curve Prize winners and finalists.
The typical grant size is tightly grouped: p25 is $25,000, the median is $25,000, and p75 is $50,000. Recent awards show two clear tiers, with many grants at $25,000 and a matching set at $50,000. The foundation operates as a regular funder and does not fund individuals. Its active programs include both prize-based grants and a fellowship, and at least two programs accept unsolicited submissions: Climate Impact Conduit and Climate Curve Prize: Methane. The grant record shown is concentrated in 2023 to 2025, with repeated annual awards under the same climate-prize framework.
$250K
$864K
$1.3M
$1.6M
Most grants fall between $25K and $50K, with a median of $25K.
25th Percentile
$25K
Median
$25K
75th Percentile
$50K
About 0% of grants go to recipients in CA.
Michael R Klein
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Grantmaking is national, with all listed recent grants going to U.S. recipients. California is the top state by grant count, and the recent record includes recipients in Sacramento, San Francisco, Santa Cruz, San Diego, and San Anselmo. Outside California, grants also landed in New York City, Brooklyn, Portland, Wilmington, Durham, Kailua Kona, Claymont, and Vashon. No grants in the recent list went to recipients in Colorado.
Its active programs focus on greenhouse gas reduction, methane mitigation in food and waste systems, carbon sinks and carbon removal, clean energy, transport and mobility, climate finance, and MRV. The grant record also includes climate organizations and climate ventures working across those areas.
The grant-size distribution is centered at $25,000, with p25 at $25,000, a median of $25,000, and p75 at $50,000. The recent grants list shows both $25,000 and $50,000 awards.
Yes for some programs. Climate Impact Conduit accepts unsolicited submissions, and Climate Curve Prize: Methane also accepts unsolicited submissions. The Constellations Fellowship Program does not.
California is the top state by grant count. Recent recipients there include organizations in Sacramento, San Francisco, Santa Cruz, San Diego, and San Anselmo.
The recent grants shown are all to U.S. recipients, with 17 grants and 100% of the listed country distribution in the United States.
2025
Source: IRS Form 990-PF, fiscal year 2025.
Most recent grants reported to the IRS.
| Recipient | Location | Amount | Year | Purpose |
|---|---|---|---|---|
| CLIMATIZE | SANTA CRUZ, CA | $50,000 | 2025 | CLIMATE CHANGE ACHIEVEMENT |
| ITSELECTRIC | BROOKLYN, NY | $50,000 | 2025 | CLIMATE CHANGE ACHIEVEMENT |
| BLUE FOREST | SACRAMENTO, CA | $50,000 | 2025 | CLIMATE CHANGE ACHIEVEMENT |
| BIOSORRA | DURHAM, NC | $50,000 | 2025 | CLIMATE CHANGE ACHIEVEMENT |
| ISLA URBANA | SAN DIEGO, CA | $50,000 | 2025 | CLIMATE CHANGE ACHIEVEMENT |
| Project Vesta PBC | San Francisco, CA | $50,000 | 2024 | Climate Change Achievement |
| Sanergy Inc | Wilmington, DE | $50,000 | 2024 | Climate Change Achievement |
| Standearth | San Francisco, CA | $50,000 | 2024 | Climate Change Achievement |
| C40 Cities Climate Leadership Group Inc | New York, NY | $50,000 | 2024 | Climate Change Achievement |
| Health In Harmony | Portland, OR | $50,000 | 2024 | Climate Change Achievement |
| Educated Choices Program Inc | Lawrenceville, GA | $25,000 | 2024 | Climate Change Achievement |
| Global Water Challenge | Arlington, VA | $25,000 | 2024 | Climate Change Achievement |
| Solar Cookers International | Sacramento, CA | $25,000 | 2024 | Climate Change Achievement |
| Clip Bike Inc | Brooklyn, NY | $25,000 | 2024 | Climate Change Achievement |
| Nitricity Inc | San Francisco, CA | $25,000 | 2023 | Climate Change Achievement |
| GreenMax Capital Advisors | Brooklyn, NY | $25,000 | 2023 | Climate Change Achievement |
| Enzinc | San Anselmo, CA | $25,000 | 2023 | Climate Change Achievement |
| MEETS Accelerator Coalition | Vashon, WA | $25,000 | 2023 | Climate Change Achievement |
| Air Company | New York, NY | $25,000 | 2023 | Climate Change Achievement |
| Symbrosia Inc | Kailua Kona, HI | $25,000 | 2023 | Climate Change Achievement |
| BasiGo Inc | Claymont, DE | $25,000 | 2023 | Climate Change Achievement |
CLIMATIZE
$50,000CLIMATE CHANGE ACHIEVEMENT
ITSELECTRIC
$50,000CLIMATE CHANGE ACHIEVEMENT
BIOSORRA
$50,000CLIMATE CHANGE ACHIEVEMENT
ISLA URBANA
$50,000CLIMATE CHANGE ACHIEVEMENT
Project Vesta PBC
$50,000Climate Change Achievement
Sanergy Inc
$50,000Climate Change Achievement
Clip Bike Inc
$25,000Climate Change Achievement
Nitricity Inc
$25,000Climate Change Achievement
GreenMax Capital Advisors
$25,000Climate Change Achievement
Enzinc
$25,000Climate Change Achievement
MEETS Accelerator Coalition
$25,000Climate Change Achievement
Air Company
$25,000Climate Change Achievement
Symbrosia Inc
$25,000Climate Change Achievement
BasiGo Inc
$25,000Climate Change Achievement