A rush of new data centers could bring air pollution roaring back to levels not seen since the 2000s in Texas, which has become ground zero for the physical infrastructure behind generative AI.

New and proposed data centers are demanding a tremendous amount of electricity. How developers and utilities meet that demand – with gas turbines or renewable energy – will determine just how dirty things will get. So far, though, things are looking grim.

Tech companies and data center developers are devising new ways to get enough electricity, including building out their own power sources. But if all planned data center projects were to plug into …

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