Spreading climate doom may make it harder to halt global warming

Will 2023 mark the arrival of the climate apocalypse – and with it, a call to action? With extreme events and record-breaking temperatures across the world, there is certainly a “pervasive sense of doom” among the general public, says Michael Mann at the University of Pennsylvania. “There is understandable worry over whether it’s too late, whether we’ve crossed some tipping point.”

The answer to that is complex, but as the emerging El Niño climate pattern builds …