Data from the European climate service Copernicus indicate that the past May was the hottest on record. May 2020 was 0.63 degrees warmer than the monthly average between 1981 and 2010. Unusual heat is observed north of the equator, but Western Siberia warmed up most of all this spring, where “abnormal temperatures” were recorded throughout the spring.
Tellingly, it is unusually warm not in the entire Northern Hemisphere, but in Siberia. While record-breaking early ice drift was observed on the Yenisei and Ob, in Canada the spring remained unusually cold. It was unusually cool, especially against the backdrop of news about the overheating of the atmosphere, was throughout Eurasia and North America, but in Siberia the temperature was almost 10 degrees higher than the average in 1981-2010. All of this has brought the world even closer to the borderline 1.5 degrees above pre-industrial levels.
But an indicator of 1.5 degrees of critical warming is calculated for the whole world and in the long term, while the Arctic region is warming up at a faster pace. Here the excess has already exceeded 2 degrees in comparison with the middle of the 19th century. In Greenland, this resulted in the loss of 600 billion tonnes of ice last year, contributing 40 percent to the overall rise in sea levels. But scientists are even more worried by the fact that up to 1.5 trillion tons of carbon dioxide are conserved in the permafrost of Siberia and Canada, and only low temperatures keep it there.