How Tech Companies Are Obscuring AI’s Real Carbon Footprint
Tech giants leading the AI race have found a way to conceal the climate impact of their growing electricity use: unbundled renewable energy certificates.
The artificial intelligence-equipped Copilot+PC displayed at the Microsoft campus in Redmond, Washington. Microsoft relied on unbundled renewable energy certificates for 51% of its renewable energy in 2022.
Photographer: Chona Kasinger/BloombergTech companies’ relentless push into artificial intelligence is coming at an undisclosed cost to the planet. Amazon, Microsoft and Meta are concealing their actual carbon footprints, buying credits tied to electricity use that inaccurately erase millions of tons of planet-warming emissions from their carbon accounts, a Bloomberg Green analysis finds.
Recently Microsoft reported that its emissions are 30% higher today than in 2020, when it set a goal to become carbon negative. Other tech companies’ emissions are rising, too. However, Microsoft and other AI leaders insist that the increase is because of the carbon-intensive materials used to build data centers — cement, steel and microchips — and not because of the massive amount of energy AI requires. That’s because they have said the power is mostly or all from zero-carbon sources, such as solar and wind.