<p><img src="https://images.cointelegraph.com/images/840_aHR0cHM6Ly9zMy5jb2ludGVsZWdyYXBoLmNvbS91cGxvYWRzLzIwMjQtMDcvNWI1ZWM1MWUtODIxMy00ODJmLTllNTUtNjkxNzQ0ODU0NmJlLmpwZw==.jpg"></p><p>U.S. tech firms made huge commitments to “net zero” carbon emissions — but that was before ChatGPT hit the scene.</p>