Climate immigration: refers to the phenomenon of large-scale migration due to the deterioration of the climate and the natural environment, people cannot continue to live in their original place of residence. The following are climate migrants. ['In order to restore the grassland ecosystem and protect natural pastures, the formerly scattered herdsmen have been relocated to a unified planned settlement.', 'Every winter, in order to avoid the severe cold, batches of elderly people in the Northeast rushed to Hainan, where the climate is warm, to winter.', 'Long-term drought in some parts of Africa, with crops failing for many years, local residents have left their homes one after another, looking for new places to live.', 'With global warming, sea levels are gradually rising, many islands are flooded with seawater, and residents on the island are forced to relocate.']