In the final minutes of the last Presidential debate of the 2020 election, the Democratic nominee, Joe Biden, called for an end to all federal subsidies for the oil industry. Global warming, he’d explained earlier, is an “existential threat to humanity,” adding, “We have a moral obligation to deal with it, and we’re told by all the leading scientists in the world we don’t have much time.” Then, in response to a belligerent challenge from the incumbent, Donald Trump—“Would you close down the oil industry?”—Biden said, “I would transition from the oil industry, yes.” “Will you remember that, Pennsylvania?” Trump said, hopefully. Twelve days later, Biden carried Pennsylvania and, with it, the election.
In the intervening four years, here’s what has happened to the climate: average air temperatures have soared…