Science | Grim predictions are still standard, but climate models are not as definitive as they seem
by Julie Borg
Posted 11/29/18, 02:39 pm
The U.S. government’s 1,700-page National Climate Assessment, released Friday, unsurprisingly blamed human activity for global warming and forecasted gloom and doom unless people took drastic measures to reduce greenhouse gas emissions. But skeptics of catastrophic man-made global warming caution that this report, like those that preceded it, relied on computer climate models that lack credibility and make predictions that do not match observations in the real world.