Microsoft carbon emissions rise 25 percent as AI infrastructure expansion continues
Microsoft reports a 25 percent increase in carbon emissions as rapid AI infrastructure expansion complicates the company's long-term sustainability goals.
1. Increase in Carbon Emissions
Microsoft’s 2026 sustainability report reveals that the company’s carbon emissions rose by 25 percent in 2025, reaching a total of 34 million metric tons. This increase occurred despite the company’s long-term goal to become carbon negative by 2030. The report attributes this rise primarily to the rapid expansion of datacenter infrastructure required to support artificial intelligence, as well as a policy change in February 2025 that ended the purchase of certain unbundled renewable energy certificates.
2. Challenges in Scaling Sustainability
The report acknowledges that current sustainability solutions are not scaling at a pace sufficient to keep up with the growing demands of AI infrastructure. These demands include significant increases in energy, water, land, and material consumption. This marks the second consecutive year that Microsoft has reported a rise in climate pollution, highlighting ongoing difficulties in meeting its environmental commitments as the company scales its AI operations.
3. Industry-Wide Trends
Microsoft is not alone in facing these environmental challenges. Other major technology companies have reported similar trends in their own 2026 sustainability disclosures. Google reported a 25 percent increase in supply chain emissions, while Amazon reported a 16 percent rise in its own carbon footprint. Additionally, Amazon noted that its data centers consumed 2.5 billion gallons of water in 2025, a figure the company stated was lower than the amount used by Microsoft.