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Microsoft Reports a Massive 25 Percent Jump in Emissions
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Microsoft's greenhouse gas emissions surged by roughly 25 percent last year, according to the company's new sustainability report released Thursday. The increase is primarily attributed to the rapid expansion of its data center infrastructure, which is critical for powering artificial intelligence services. This marks a significant setback for Microsoft's goal of becoming carbon negative by 2030.
The report follows similar disclosures from Google and Amazon last week, revealing a troubling trend of rising emissions among major tech companies. The global race to build energy-intensive data centers for AI is driving these increases, with Microsoft's Scope 2 emissionsâpollution from purchased energyâaccounting for 13 percent of its total. Amazon reported a 16 percent rise in CO2 emissions, while Google saw an 18 percent jump, its largest single-year increase.
Microsoft says it matched 100 percent of its electricity consumption with carbon-free sources, but the data center build-out is accelerating. Recent deals could push emissions higher, including a partnership with Chevron for a gas-powered plant in West Texas expected to emit over 11.5 million tons of CO2 equivalent annuallyâmore than Rhode Island's total emissions. The company also leased space on the Stargate campus in Abilene, Texas, powered by an onsite plant emitting up to 7.8 million tons per year, and signed a nonbinding letter for compute at a West Virginia data center with potential off-grid gas emissions exceeding 11 million tons.
Microsoft's strategy includes exploring mitigation options, according to Chief Sustainability Officer Melanie Nakagawa. The company has stopped purchasing unbundled renewable energy certificates (RECs), a move criticized as greenwashing because they don't add new clean power to the grid. This change partly contributed to the rise in Scope 2 emissions, as Microsoft shifts toward investments in new clean electricity through power purchase agreements.
Researcher Danny Cullenward of the University of Pennsylvania praised Microsoft's move away from unbundled RECs, calling it highly commendable. He noted that prioritizing long-term offtake agreements can bring new clean electricity online. However, the company's continued reliance on gas-powered data centers for AI expansion raises questions about the feasibility of its 2030 carbon-negative target.
Microsoft maintains its commitment to becoming carbon negative by 2030, but the global race for AI is increasing demand for data centers. As Brad Smith and Melanie Nakagawa wrote in a blog post, the path forward requires balancing growth with sustainability. With emissions rising and new gas deals in place, Microsoft faces an uphill battle to meet its climate goals.
