AI data centers in the US are using old jet engines pulled from airplane graveyards in Arizona, converting them into generators to help meet the huge power needs of AI technology, according to a report dated Nov 04, 2026. The converted engines are not as clean or efficient as modern turbines, and projects such as Elon Musk's xAI in Mississippi have sparked debate because these generators can emit more pollution than usual limits allow. Environmental groups are pushing back, saying this quick fix could put health and sustainability at risk and that long-term solutions need to be cleaner.