Microsoft’s emissions rise 25% in 2025 as AI data center rollout complicates its climate goals

Microsoft has published its new sustainability report with data that once again shows the environmental pressure of the rise of artificial intelligence in large technology companies. The company raised its emissions by 25% in 2025 compared to the previous year, just when it has four years left to meet its goal of becoming a carbon negative company in 2030. The increase places Microsoft in a situation similar to that of other large firms in the sector, which are also seeing how their climate goals collide with the rapid growth of data centers.

According to company data, Microsoft generated a total of 34 million tons of carbon dioxide equivalent during 2025. After subtracting the carbon whose removal it has financed, the net figure drops to 20 million tons. The report also shows that total electricity consumption grew 24% during the year, a jump directly related to the expansion of infrastructure to support cloud services and workloads linked to artificial intelligence.

Microsoft’s sustainability director, Melanie Nakagawa, has insisted that the company maintains its goal of being carbon negative in 2030. In parallel, he explained that part of the increase not only responds to the growth of data centers, but also to a strategic decision: to stop purchasing short-term renewable certificates not directly linked to energy supply. Microsoft, as stated, wants to prioritize longer-lasting initiatives with greater structural impact.

More data centers, more electricity and more pressure on the climate roadmap

As technology companies invest billions of dollars in new data centers for AItheir energy needs also increase and, with them, the difficulty of cutting emissions at the expected rate. In the case of Microsoft, the company recognizes that the challenge involves combining several lines of action at the same time, from carbon elimination and emission-free electricity to sustainable materials and alternative fuels.

The report does highlight some areas of progress. Microsoft assures that it has achieved match your overall electricity consumption with renewable energy, replenish more fresh water than it has withdrawn for the first time on a global scale, maintain 92% reuse and recycling of retired cloud servers for the second consecutive year and reach clean energy purchase agreements for 40 gigawatts in 26 countries, of which 19 gigawatts are already online.

However, the report comes at a time of increased scrutiny over several recent company decisions. Among them is an agreement with Chevron to build a natural gas facility in Texas with 2.67 gigawatts of capacity and dedicated supply for 20 years. Information has also been published about a possible review of its commitment to match its electricity consumption with carbon-free energy 24 hours a day in 2030, in addition to doubts about the pace of future purchases of carbon removal credits.

Microsoft defends an overall strategy, not isolated measures

Nakagawa has avoided making new carbon removal purchases, although he has noted that Microsoft has not canceled ongoing projects and is continuing to evaluate credible opportunities to scale. Regarding the energy strategy, the company insists that it analyzes its investments as part of a Broadest portfolio of solutionssomething that includes purchases of renewables, lower footprint materials for buildings and improvements in operational efficiency within its facilities.

These measures include the use of steel and concrete with lower climate impact, the incorporation of structural wood in some constructions and the expansion of its network of Circular Centers, spaces where it recycles and reconditions electronics from data center operations. Microsoft also maintains that it is working with developers to make AI models and the products built on them more efficient, with the goal of reducing running energy consumption.