Google has agreed to purchase 100,000 tons of carbon dioxide removal credits from Indian startup Varaha, its first such deal with a carbon project in India and the largest involving biomass-produced biochar (also called horticultural charcoal or “black gold” for soils).

Google is one of a number of big tech companies looking to offset emissions through CDR, which refers to a range of interventions designed to remove CO2 already in the atmosphere and oceans.

Alphabet Inc.’s Google will buy carbon-removal credits based on projects using biochar that’s made by heating organic waste, one of the biggest such deals to date.

MOUNTAIN VIEW, CA – Google announced its first venture into India’s carbon dioxide removal (CDR) sector through a deal with Varaha, an Indian supplier based in Gurugram, to purchase carbon credits. The agreement focuses on producing biochar, a type of charcoal that absorbs carbon dioxide and stores it in the soil.

Google has entered into a groundbreaking agreement with Indian startup Varaha to purchase 100,000 tons of carbon dioxide removal credits. This partnership marks Google’s first carbon project deal in India and represents the largest transaction involving biomass-produced biochar to date.