W. Aaron Vandiver's avatarIn February 2022, 1,140 organizations sent President Biden a letter urging him to declare a “climate emergency.” A group of U.S. Senators did the same, in October 2022, and a House bill, introduced in 2021, also called on the president to “declare a national climate emergency under the National Emergencies Act.”

Biden has considered declaring such an emergency, but so far he has declined, to the disappointment of many progressives.

The United Nations (U.N.) has urged all countries to declare a climate emergency. The state of Hawaii and 170 local U.S. jurisdictions have declared some version of one. So have 38 countries, including European Union members and the U.K., and local jurisdictions around the world, together encompassing about 13% of the world’s population. …