Microsoft carbon emissions rose 25% in 2025 amid AI data center boom

Colleen Cabili

Fri, July 10, 2026 astatine 8:42 AM CDT 2 min read

Microsoft reported Thursday that its full greenhouse state emissions roseate 25% successful fiscal twelvemonth 2025, driven by the accelerated enlargement of its information halfway infrastructure and a determination to halt purchasing definite types of renewable vigor certificates.

Gross output reached 34 cardinal metric tons of c dioxide equivalent for the year; erstwhile c removal credits were factored out, that fig fell to a nett 20 cardinal metric tons, compared with 16 cardinal metric tons successful the preceding fiscal year. Microsoft's full energy depletion grew 24% implicit the aforesaid period, according to GeekWire.

In the report, Microsoft President Brad Smith and Chief Sustainability Officer Melanie Nakagawa warned that the gait of disposable sustainability solutions has failed to support up with what AI infrastructure present requires, a hostility they described arsenic some existent and productive. Reaching that 2030 carbon-negative pledge — made six years agone — present leaves the institution with a four-year runway to reverse course.

Part of the emissions summation stems from Microsoft's determination past twelvemonth to halt purchases of unbundled, short-term renewable vigor certificates, a determination the institution said would redirect concern toward initiatives that bring nett caller cleanable powerfulness to electrical grids. The institution continues to prioritize a "portfolio approach" spanning c dioxide removal, carbon-free electricity, sustainable materials, and fuels. "We proceed to truly beryllium focused astir c negativity by 2030," Nakagawa said.

Scope 2 emissions — those tied to purchased energy — represented 13% of Microsoft's full footprint, up from astir 2% the anterior year, the institution said, highlighting the increasing relation of vigor systems crossed its proviso chain.

The study besides noted areas of progress. Microsoft said it matched 100% of its yearly planetary energy depletion with renewable vigor and, for the archetypal time, replenished much caller h2o globally than it withdrew — much than 14 cardinal cubic meters. The institution besides reported 92% reuse and recycling of decommissioned unreality servers for the 2nd consecutive twelvemonth and said it present holds 40 gigawatts of cleanable powerfulness acquisition agreements crossed 26 countries, with 19 gigawatts online.

Microsoft is not unsocial among large exertion companies facing unit connected emissions targets. Among peers, The Verge noted that Google disclosed a 25% leap successful proviso concatenation emissions successful its ain 2026 sustainability report, portion Amazon logged a 16% rise.

The sustainability disclosures travel arsenic Microsoft has faced scrutiny implicit caller vigor decisions. A woody disclosed successful June pairs Microsoft with Chevron connected a planned West Texas earthy state works whose output would provender a dedicated information halfway campus, according to Bloomberg. Microsoft banal has shed much than 24% of its worth truthful acold successful 2026, with investors increasing impatient implicit the costs of its AI buildout adjacent arsenic the company's underlying concern continues to grow.