Nearly 15 years worth of hard-won pollution reduction efforts are set to be undone in the United States, as a wave of data centers powered by gas plants enters construction. That’s according to a new analysis by the Sierra Club, first reported by Bloomberg, which notes that the US energy grid is expected to belch out 2.1 billion metric tons of carbon dioxide by 2030, assuming the country’s currently-planned AI developments enter operation as scheduled. Tha