Google has agreed to its largest carbon-removal purchase to date, partnering with climate developer Terradot on a project covering more than 200,000 hectares of rice farms in Rio Grande do Sul, southern Brazil. The initiative targets 2 million metric tons of combined climate impact through two components: 1 million metric tons of methane-elimination credits by 2030 using Alternate Wetting and Drying, and 1 million metric tons of permanent carbon dioxide removal by 2040 through Enhanced Rock Weathering. The methane-reduction and carbon-removal credits will be generated and verified separately. The companies said the technologies are designed to complement each other, with methane reductions delivering faster climate benefits and dissolved volcanic rock removing carbon dioxide over a longer period. The carbon-removal component is 10 times larger than previous enhanced rock-weathering projects, while no earlier deal at this scale had combined methane abatement with carbon removal, Reuters reported. Pricing was not disclosed. Terradot CEO James Kanoff said the project is cheaper than earlier deals and represents progress toward the $100-per-ton level developers target to stimulate broader demand. Google invested in Terradot in 2024. The model could extend across Brazil’s 1.5 million hectares of rice fields and be replicated in other rice-growing regions, with Terradot planning pilots in several countries in 2026 and full commercial operation by 2028.