A worker hoists a United Nations flag with other national flags of participating countries at the venue of the COP28 UN climate summit in Dubai on November 30, 2023.

People walk past the logotype at the venue for the 2024 United Nations Climate Change Conference (COP29) in Baku on November 11, 2024. The COP29 climate talks open on November 11 in Azerbaijan, under the long shadow cast by the re-election of Donald Trump, who has pledged to row back on the United States' carbon-cutting commitments.