Simon Stiell, U.N. climate chief, speaks during a closing plenary session at the COP27 U.N. Climate Summit, Sunday, Nov. 20, 2022, in Sharm el-Sheikh, Egypt. Stiell acknowledges nations didn’t do anything additional to address climate change itself at the summit, reducing emissions of heat-trapping gases. The progress made last year at the meeting in Glasgow was maintained, he said. “There was no backtracking". (AP Photo/Peter Dejong, File)
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