Microsoft has announced a 25% increase in its carbon emissions for the 2025 fiscal year, positioning it as the latest major technology firm to report a setback in its environmental goals while simultaneously ramping up investments in artificial intelligence infrastructure.
In its annual sustainability report released Thursday, the company stated its carbon dioxide equivalent emissions reached 20 million metric tons, up from 16 million tons the previous year. The software giant attributed this rise primarily to the construction of new data centers and a previously announced pause on purchasing certain types of renewable energy credits.
Microsoft President Brad Smith and Chief Sustainability Officer Melanie Nakagawa wrote in the report that "AI infrastructure is driving increased demand for energy, water, land, and various raw materials, but the expansion of sustainable solutions is not keeping pace with this demand. This supply-demand imbalance is a reality that also presents new opportunities."
Six years ago, the company pledged to become carbon negative by 2030, aiming to remove more carbon from the atmosphere than it emits. At that time, the goal seemed achievable due to continuous improvements in data center efficiency and significant corporate investments in renewable energy and carbon capture technologies.
However, the company's green ambitions have clashed with its commercial objectives. Microsoft's drive to become a leader in the AI era has sparked a wave of construction for new, energy-intensive data centers required to power AI models. This expansion is not only straining power grids but also compelling utilities to build new fossil fuel power plants to meet the demand.
For instance, in June the company signed an agreement with Chevron to procure electricity from a planned large-scale natural gas power plant in West Texas to power a new data center complex.
Concurrently, the company is reassessing its emission reduction efforts and has informed sustainability partners that it will scale back new carbon bank transactions. Executives are also considering delaying a target to match its data centers' electricity consumption with renewable energy on an hourly basis. This move comes as other companies have withdrawn their own environmental commitments following relaxed U.S. government standards and efforts to curb sustainability initiatives.
Microsoft stated that its emissions would have been lower had it not decided last year to pause purchases of a specific type of carbon credit, which is controversial in environmental circles because it does not directly incentivize the creation of new zero-carbon energy projects.
Smith and Nakagawa indicated that the company aims to define the standards for sustainability more precisely and proactively adjust its strategy as circumstances evolve, data improves, and trade-offs become clearer. They emphasized that "this in no way represents a lowering of our goals or vision."
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