During the administration of the former president, Donald Trump, the United States had withdrawn from the Paris Climate Agreement. The official withdrawal from the agreement had occurred on November 4th, 2020 a year after the US began the process of withdrawing (BBC.) With the beginning of a new administration under president Joe Biden, the US once again chose to rejoin the Paris Climate Agreement. The process took 30 days to complete with the US finally rejoining the agreement on February 26th, 2021(NBC.) read more The Paris Climate Conundrum