Anthropic has joined Frontier, the carbon removal coalition backed by major tech companies, making it the first AI startup to become a member of the group. The company’s contribution is part of a new $915 million funding tranche that nearly doubles Frontier’s total pledges to $1.8 billion, as reported by TechCrunch.
The timing is significant. AI companies have been on an aggressive energy buying spree over the past few years, and the power sources behind that expansion have not always been clean. Anthropic joining Frontier is its first climate-related commitment of any kind. The company has not yet published a sustainability report and has previously said it takes an “all of the above” approach to energy, which in practice often means buying a lot of polluting power.
Whether this signals a real shift in attitude at Anthropic remains to be seen. But the move puts it in company with Google, Stripe, and Shopify, all founding members of Frontier, and signals that at least some AI companies are starting to think more seriously about their environmental footprint.
Frontier was set up in 2022 to help tech companies meet their climate goals. The basic problem it was designed to solve is straightforward: many companies want to hit net-zero emissions within the next decade or two, but some emissions, like those from air travel, are very hard to eliminate entirely right now. Carbon removal credits let companies offset what they can’t yet cut, by funding projects that pull carbon dioxide out of the atmosphere. Frontier vets those projects and signs contracts on behalf of its members, acting as a shared resource that smaller companies could not afford to build on their own.
So far, Frontier has committed nearly $700 million across more than 50 projects, contracted to remove 1.8 million metric tons of carbon. The technologies it has backed include:
- Direct air capture
- Enhanced rock weathering
- Bio-oil
- Ocean antacids
- Bioenergy with carbon removal and sequestration
With the new funding round, Frontier is also changing how it operates. Instead of spreading money across many smaller bets, it will now focus on fewer projects with better odds of scaling to gigaton-level impact, meaning the ability to remove at least one billion metric tons of CO2 per year. New contracts will run eight to 10 years, giving funded companies more stability to grow.
That shift mirrors what Microsoft, the largest single buyer of carbon removal credits, has also been doing. The trend points to a maturing market where funders are becoming more selective and results-focused, rather than simply experimenting with as many approaches as possible.
There is also a clear message to carbon removal companies looking for Frontier backing: public funding needs to be part of your plan. Any company seeking a new contract must show a path to government subsidy or support, according to a Frontier spokesperson. That condition reflects a broader reality. The UN’s Intergovernmental Panel on Climate Change has said carbon dioxide removal will be essential to reaching net zero, but private companies are not going to pay for it indefinitely. Frontier has said it will sign contracts as far out as 2040, but beyond that, the expectation is that governments will need to step in.
Whether governments actually do that is a separate and much larger question. For now, Anthropic’s entry into Frontier at least adds a new and prominent voice to the argument that the AI industry needs to take its climate impact seriously.
