President Joe Biden speaks during a news conference at the COP26 U.N. Climate Summit, Nov. 2, 2021, in Glasgow, Scotland. Shortly after Biden took office, he issued what was widely hailed as a landmark executive order calling for the U.S. government to address the impact of climate change on migration. Since then, however, the Biden administration has done little more than study the idea. (AP Photo/Evan Vucci, File)
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