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Microsoft’s Carbon Emissions Rose 27% as Artificial Intelligence Projects Expand

In the fiscal year that ended in June 2025, Microsoft’s total emissions reached 21.1 million metric tons of carbon dioxide equivalent.

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Key Points

5 points

Total emissions: 21.1 million metric tons of carbon dioxide equivalent.

Previous year emissions: 16.7 million metric tons.

Increase percentage: roughly 27%.

Main cause: expansion of Artificial Intelligence data centers.

Impact: adds pressure on climate‑change targets.

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That is an increase from 16.7 million metric tons the previous year, a rise of about 27%.

The company says the growth is tied to the rapid build‑out of Artificial Intelligence infrastructure.

Higher emissions contribute to climate change, prompting concerns about meeting environmental goals.

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5 words

emissions

gases released into the atmosphere, often from energy use or manufacturing

carbon dioxide equivalent

a way to measure different greenhouse gases using carbon dioxide as a reference

Artificial Intelligence

technology that enables computers to perform tasks that normally require human intelligence

metric tons

a measurement of weight equal to 1,000 kilograms

fiscal year

the 12‑month period a company uses for accounting and reporting purposes

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