Big Tech-backed carbon removal coalition adds Anthropic and raises funding by $915 million（約1500億円）, bringing total pledges to $1.8 billion（約2900億円）.

What happened: Frontier, a coalition launched in 2022 by companies including Stripe and Google, announced an additional $915 million（約1500億円） injection into carbon removal technology and added Anthropic as a new participant. The coalition now has total funding pledges of $1.8 billion（約2900億円） and plans to make approximately 10 to 15 focused bets through eight- to ten-year offtake contracts extending as far as 2040.

Why it matters: Frontier aims to scale carbon removal by committing to buy credits in advance, which derisks projects and helps them grow more quickly. The new funding will target technologies including ocean alkalinity enhancement, biomass-based removal, enhanced rock weathering, and direct air capture—technologies that scientists say are critical to offset emissions from sectors that continue to rely on fossil fuels.

What to watch: Frontier said these technologies could collectively reach gigaton scale, though each carries distinct cost and technology risks. The company did not break down how much each participant contributed.