A Guardian analysis shows that the Trump administration’s immigration crackdown largely targets people from countries most vulnerable to climate-driven disasters. Of the 39 countries facing full or partial US entry restrictions, 22 are ranked within the most vulnerable quarter of nations regarding climate impacts, according to data from the Notre Dame Global Adaptation Initiative. The analysis highlights that nearly all of the world’s most vulnerable countries are on a ban or visa pause. Specifically, immigrants from Chad and Niger, the two most climate-vulnerable countries in the world according to the index, are fully barred from the US. Sudan, Somalia, and Sierra Leone, which are also among the 10 countries most exposed to climate impacts, are similarly restricted. Also, the administration has sought to terminate the temporary protected status (TPS) of people from Honduras and 12 other countries, nearly half of which are ranked by Notre Dame as among the most climate-vulnerable. The Trump administration has stated that these sweeping bans are intended to keep “radical Islamic terrorists” out of the country and resolve vetting deficiencies. Conversely, the administration has dismissed the climate crisis as a “hoax” and “bullshit,” while pushing for policies to boost fossil fuels. Meanwhile, the US has effectively shut down its refugee program, with the exception of white South Africans, and dismantled overseas aid programs designed to ameliorate the symptoms of a warming world. While the US immigration apparatus factors in climate crises through TPS, there is currently no official pathway in US law or the UN’s 1951 refugee convention to recognize environmental disasters as a reason to gain protection. Efforts to codify such protections, such as the Climate Displaced Persons Act, have so far floundered.