Big Tech's Climate Pledges Now Run on Gas: AI Datacenters Are Burning Through Every Net-Zero Promise

Google (+25%), Amazon (+16%), Meta (+64%) — emissions are climbing year-over-year as AI datacenter buildouts force all four tech giants back to fossil fuels. The net-zero era is over; the moonshot era has begun.

Google and Amazon released their annual sustainability reports last week, and the numbers tell a story their PR language works hard to obscure. Google's total carbon emissions climbed 25% year-over-year. Amazon's shot up 16%. Microsoft's 2025 report already showed a 23% increase over its 2020 baseline, and its 2026 disclosures are expected to be worse. Meta's 2025 report revealed a 64% year-over-year emissions spike — the largest of the group — despite a pledge of net-zero by 2030.

The cause is uniform across all four companies: AI datacenter construction and the electricity required to run them. Each company fashioned itself a climate leader during the ESG-prioritized previous decade, setting ambitious net-zero targets and investing heavily in wind and solar. Those commitments are now colliding head-on with the AI arms race, where stock prices depend on infrastructure buildout speed, not carbon accounting. The language shift is the tell. Google stopped speaking in terms of concrete 2030 goals by 2025 and rebranded its emissions targets as "climate moonshots" — a term the company uses for speculative projects that may or may not materialize. Amazon acknowledged "the path to being a more sustainable company is not a straight line." These are not the statements of companies on track. These are companies managing expectations downward. All four have turned to fossil fuels to bridge the gap. Gas-generated electricity contracts have been signed in Texas, Indiana, and Louisiana. The Environmental Integrity Project released a report last week identifying 74 planned gas-fired power plants specifically catering to US datacenters. The group estimates these facilities could emit upwards of 660 million tons of greenhouse gas pollution per year — equivalent to the entire country of Australia's annual output. Meanwhile, Meta's broader trajectory compounds the picture. The company's stock is down roughly 9% year-to-date. It laid off about 10% of its global workforce in May, including over 2,000 workers at Menlo Park. CEO Mark Zuckerberg conceded in a town hall that AI agent development was going slower than expected. A top executive internally admitted leadership did an "atrocious job explaining the vision" to employees. Meta is now casting about for new revenue lines with visible urgency. Bloomberg reported the company is building a cloud computing business to sell excess AI compute. The New York Times reported an internal prediction markets app called "Arena," modeled on Polymarket and Kalshi. As Forrester VP Mike Proulx noted, this steers Meta back toward habit-forming products — the exact category of design that triggered its current avalanche of social media addiction litigation. The structural pattern is clear: tech companies made climate commitments when ESG was a market signal, and are abandoning them now that AI capability is the market signal. The emissions are not a temporary spike. Seventy-four new gas plants are not a bridge — they are a destination. The net-zero pledges of the 2020s are becoming the "climate moonshots" of the 2030s, which is corporate for "we stopped trying."