Citing new research, the Associated Press reports that “modest gains in the fight to curb climate change have dialed back the most catastrophic of future heating.” That’s the good news. But the same research “also confirmed that there’s no chance to limit warming to the international goal set in 2015.” Researchers’ new list of seven plausible carbon pollution scenarios for the future are pushing aside two staples of climate policy: the extremes on either end. The extremes have become less probable in the past several years because of how we power our world.