Microsoft admits its carbon emissions grew 25 percent in 2025, including a rise in fossil fuel use

• Microsoft produced 20.3 million tons of CO2e emissions last year, up from 16.2 million tons
• Of the 37.5 million MWh of energy used, only 422,000 MWh came from unsustainable sources
• A rise in diesel/crude oil consumption and Scope 2 emissions are key drivers

In its latest sustainability report, Microsoft has admitted its greenhouse gas emissions actually rose 25.1% year-over-year from 16.2 million tons to 20.3 million tons in 2025.

With the company targeting a 2030 carbon negative deadline, rising emissions presents a major challenge that it must overcome, however current trends point to emissions continue to rise even further.

Microsoft said its rapid expansion of AI and cloud data centers as a key driver for rising emissions, and with more projects in the pipeline, this could be an ongoing challenge for years to come.

Microsoft's emissions are moving in the wrong direction

The company also noted its decision to...

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