Climate change: According to NASA, 2021 will be 1.1 degrees warmer than before industrialization

Last year was the sixth hottest since records began in 1880 and the 45th consecutive year to be warmer than the 20th century average. This has now been determined by experts from the US space agency NASA and the US weather service NOAA. They only come up with different values ​​than their colleagues in the EU earth observation program Copernicus in detail. According to NASA and NOAA, the global average temperature last year was 1.1 degrees Celsius above the mean at the end of the 19th century. Science leaves no room for doubt: “Climate change is the existential threat of our time,” says NASA boss Bill Nelson.

The deviation of global mean temperatures from the long-term mean

(Image: NOAA NCEI)

From the data presented now also shows that the past eight years have all ranked among the ten hottest on record. In 2021, more heat was stored in the uppermost parts of the ocean than at any time in previous decades. In the Arctic, sea ice has declined to the ninth smallest area we have ever observed. NASA and NOAA did not set any new records for the regional average temperatures either, but the temperatures ended up in the top 10. The overall trend of global climate warming is thus once again confirmed. The fact that the figures differ in detail from those of other organizations is partly due to the methodology, but also to the respective data material. But that doesn’t change the fact that the general trend is clearly evident.

Copernicus managers had already announced a few days ago that 2021 was again one of the hottest years ever, but did not set a new record. They had also determined that the global average temperature was 1.1 degrees Celsius above the pre-industrial level. There is a scientific consensus that catastrophic climate change can only be averted if the earth does not heat up more than 1.5 degrees Celsius. The release of the figures from the major US organizations now coincides with an extreme heat wave in Argentina, which is currently experiencing summer. In the Greater Buenos Aires area, at temperatures of around 40 degrees Celsius, hundreds of thousands were without electricity, reports, among other things, the mirror.


(mho)

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