Microsoft

Microsoft, a US-based computer and related services company, reported total carbon emissions of approximately 20.29 billion kg CO2e in 2025. This included about 170.89 million kg CO2e from Scope 1 emissions, around 2.71 billion kg CO2e from market-based Scope 2 emissions (or 12.03 billion kg CO2e on a location-based method), and approximately 18.24 billion kg CO2e from Scope 3 emissions. For 2024, total emissions were about 16.21 billion kg CO2e, with Scope 1 at around 143.51 million kg CO2e, market-based Scope 2 at about 259.09 million kg CO2e (or 9.96 billion kg CO2e location-based), and Scope 3 at roughly 16.29 billion kg CO2e. In 2023, the company's total emissions were approximately 17.66 billion kg CO2e, comprising about 144.96 million kg CO2e for Scope 1, around 393.13 million kg CO2e for market-based Scope 2 (or 8.08 billion kg CO2e location-based), and roughly 17.12 billion kg CO2e for Scope 3.

Microsoft has set ambitious climate commitments. The company aims to be carbon negative by 2030, meaning it will remove more carbon than it emits. By 2050, Microsoft plans to remove an equivalent amount of carbon to all its historical emissions since its founding in 1975. Near-term targets include reducing Scope 1 and 2 emissions to near zero by the middle of this decade, partly by achieving 100% renewable electricity by 2025. Microsoft also commits to reducing Scope 3 emissions by more than half by 2030 from a 2020 baseline. The Science Based Targets initiative (SBTi) has certified Microsoft's target to reduce Scope 3 GHG emissions intensity per unit of revenue by 30% by 2030 from a 2017 base year, while also aiming to avoid growth in absolute Scope 3 emissions. Microsoft is also a signatory of The Climate Pledge.