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FILE - A dog stands beside plastic waste on the banks of the Nile River in Cairo, Egypt, Sept. 29, 2022. The U.N. climate summit is back in Africa after six years and four consecutive Europe-based conferences. The conference âÄ” known as COP27 âÄ” will be held in the resort city of Sharm el-Sheikh in Egypt. (AP Photo/Amr Nabil, File)