Once upon a time the estimated effects of a doubling of CO2 where as high as 6C.
Now they approach zero. Read the rest at the source – NoTricksZone.
I hadn’t noticed, but Antarctica on day 281 to 285 was back within one standard deviation for the first time in 1.5 months.
South / North
1950: USA 43% of global CO2
2015: USA 14% of global CO2