our latter-day apocalypse will be driven by 15 tipping points affecting the earth’s climate. The sooner humanity stops burning coal, petroleum and fossil gas, the sooner a set of significant dangers will begin to recede. On the other hand, if the new British Prime Minister Liz Truss commits to extracting gas by hydraulic fracturing, she will lock in a significant increase in heat-trapping gases in the atmosphere– carbon dioxide and methane.
David Armstrong McKay et al. have just published at Science an article surveying the 15 climate tipping points identified by the UN’s IPCC and the amount of extra warming that will trigger them. Here is the graphic they used to illustrate these tipping points: