The White House convened a virtual summit on the climate crisis this week, with 40 leaders representing the world’s major economies pledging cuts to greenhouse gas emissions. President Joe Biden said the U.S. would cut its emissions by at least 50% below 2005 levels by the end of the decade — nearly double the target set by the Obama administration six years ago. Biden’s pledge fulfills “a basic requirement of the U.S. being in the Paris Climate Agreement,” says New Republic staff writer Kate Aronoff, but still does not go far enough. “This is well, well below what the United States really owes the rest of the world, based on its historical responsibility for causing the climate crisis and the massive, massive resources this country has to transition very quickly off of fossil fuels.”