Real-world data  indicates that future climate change may be far worse than models predict. Climate Progress gets into the nitty gritty details from a recent review article in Science, discussing, among others, a study that

“found that carbon dioxide may have at least twice the effect on global temperatures than currently projected by computer models of global climate.”

These conclusions stem from considering non-equilibrium factors that can’t really be modeled, such as release of methane as tundra areas warm; and are buttressed by examining temperatures back when carbon dioxide levels were  higher than they are now, but toward which we are heading.


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