Google has signed its largest carbon removal deal to date with Terradot, covering more than 200,000 hectares of rice farms in Rio Grande do Sul, Brazil. The agreement combines 1 million metric tons of methane-elimination credits from alternate wetting and drying with 1 million metric tons of permanent CO2 removal from enhanced rock weathering. Google expects the methane portion by 2030 and the CO2 removal by 2040. Terradot says the model could expand across Brazil's 1.5 million hectares of rice fields and into other rice-growing regions, with pilots starting in 2026 and commercial operation targeted for 2028. Credit prices were not disclosed, but the company says costs are moving toward the $100 per ton threshold. The deal is part of Google's strategy to pair fast-acting methane reductions with long-lived carbon removal. For carbon buyers, the interesting part is the bundled structure. Methane credits and permanent removal credits have different climate benefits and verification challenges. The deal is a test of whether one project can deliver both at scale.
