Projects summary | Wren
Projects summary
Projects in the Wren Classic and Trailblazer portfolios. Use the project ID with the Wren public API.
| Project ID | Name | Type | Certification↕ | Location | Partner | Description | Cost per ton (USD)↕ |
|---|---|---|---|---|---|---|---|
| 25 | Adipic acid nitrous oxide abatement | Super pollutant mitigation | Certified offset | Florida | ClimeCo | Help prevent highly-poluting nitrous oxide emissions from plastic production. | $7.14 |
| 18 | Biochar carbon removal | Engineered carbon dioxide removal | Certified offset | United States | Pacific Biochar | Help prevent California wildfires, while locking up carbon for thousands of years. | $242.86 |
| 49 | Carbon Gap | Policy | Additional contribution | Brussels, Belgium and London, United Kingdom | Carbon Gap | This project advances policies that maximize Europe’s contribution to the rapid and responsible global scale-up of carbon dioxide removal (CDR) needed for effective climate change mitigation. | — |
| 41 | Carbon Removal Alliance | Policy | Additional contribution | Washington, D.C., United States | Carbon Removal Alliance | This project advances policies that support a diverse set of permanent, high-quality carbon removal technologies. | — |
| 40 | Clean cookstoves in East Africa | Other | Certified offset | Kenya & Uganda | EcoSafi | This project reduces greenhouse gas emissions by transitioning households and businesses in East Africa from charcoal to clean alternatives, decreasing the reliance on non-renewable fuels. | $50.00 |
| 13 | Enhanced rock weathering | Engineered carbon dioxide removal | In-progress offset | United Kingdom and Canada | UNDO | This project spreads crushed silicate rocks such as basalt on agricultural land, speeding up the Earth’s natural weathering cycle, and permanently removing carbon from the atmosphere. | $609.82 |
| 30 | Enhanced weathering on rice paddies | Engineered carbon dioxide removal | In-progress offset | India | Mati | This project spreads crushed rock on rice paddies in India, permanently removing CO₂ from the atmosphere and supporting smallholder farmers. | $567.14 |
| 38 | Forest resilience against wildfires | Nature-based solutions | Additional contribution | United States | Blue Forest | This project restores and protects forests, watersheds, ecosystems, and communities in the Western United States. | — |
| 47 | Improved forest management in Maine | Nature-based solutions | Certified offset | Maine, United States | Renoster | This project removes carbon dioxide from the atmosphere by partnering with private forest owners to help them keep their forests growing for longer. | $50.00 |
| 46 | Landfill methane abatement | Super pollutant mitigation | Certified offset | Brazil | Orizon | This project avoids the emission of methane (CH₄), a greenhouse gas 28× more potent than carbon dioxide (CO₂). | $10.71 |
| 32 | Mangrove planting in Myanmar | Nature-based solutions | Certified offset | Myanmar | Worldview International Foundation | This project reforests degraded mangrove ecosystems in Myanmar’s Ayeyarwady Division. | $57.14 |
| 20 | Refrigerant destruction | Super pollutant mitigation | Certified offset | France | Tradewater | Help find and destroy dangerous CFC-12 refrigerants before they leak into the atmosphere. | $24.00 |
| 39 | Refrigerant destruction | Super pollutant mitigation | Certified offset | South Korea | A-Gas — South Korea | Help find and destroy dangerous CFC-12 refrigerants before they leak into the atmosphere. | $21.43 |
| 10 | Tech-enabled rainforest protection | Nature-based solutions | Additional contribution | Peru | The Rainforest Foundation | Help indigenous communities protect their Amazon rainforest home by funding satellite imagery, drones and monitoring tools. | — |
| 37 | Underground biomass storage | Engineered carbon dioxide removal | In-progress offset | Arkansas | Graphyte | This project dries and compresses biomass into dense blocks of carbon and stores them underground. | $251.43 |