May 2020 was hottest EVER, despite CO2 emissions drop from the Coronavirus recession
Economic shutdown reduced carbon emissions, but not enough to keep last month from being the hottest May ever: As reports keep telling us, the worldwide economic response to the coronavirus pandemic has reduced carbon emissions, with as much as 8 percent less CO2 being pumped into the atmosphere compared with 2019.
But this is temporary. And the Copernicus Climate Change Service notes that it wasn’t enough to keep May cool.
Global surface temperatures were 0.63 degrees Celsius higher than the May 1981-2010 temperature average. A heat wave in Siberia was a big cause of this. Temperatures there reached 10 degrees Celsius above the post-1980 average.
In the 12-month period ending in May, the average global temperature was 1.3 degrees Celsius above the preindustrial norm.
At the same time, the atmospheric CO2 concentration hit a record level of 417 parts per million (ppm) this May, up from 414.8 ppm last May.
(Crossposted with DailyKos.)