The past seven years, from 2015 to 2021, have been the warmest on record, although the La Niña meteorological phenomenon in 2021 temporarily lowered the temperature. This day emerges from an overview of the United Nations World Meteorological Organization (WMO).
In a press release, the World Meteorological Organization said: “All seven warmest years have been recorded since 2015. The years 2016, 2019 and 2020 lead the rankings. Last year, for the seventh consecutive year, global temperatures were above pre-epoch levels. industrial by more than 1 ° C. Global warming and other long-term effects of climate change continue due to record levels of greenhouse gases in the atmosphere.”
The effect of Van La Niña
Thus, the increase in temperatures in 2021 was slightly less pronounced, by La Niña, but WMO President Petteri Taalas notes that “the year 2021 was nonetheless much warmer than previous years which were also affected by La Niña”. The effect of La Niña, a phenomenon that occurs every two to seven years, lowers the average global temperature by abnormal cooling of the upper waters in the eastern tropical Pacific. In general, the effects are the opposite of what causes El Niño.
In 2021, the average temperature on our planet was 1.11 ° C higher than the pre-industrial value of 1850-1900. The 2015 Paris climate agreement stipulates that the increase should be limited to less than two degrees, and if possible 1.5 degrees. This goal was emphasized at the recent climate summit in Glasgow. However, the measures taken at present are by no means sufficient.
Fifth recorded hottest year
The WMO bases its data, among other things, on the statistics of the European Copernicus Service. Similar figures were published last week. Copernicus’ main conclusion was that 2021 was the fifth warmest year on record. Americans from NOAA and Berkeley Earth put 2021 in sixth place, and the Japanese in seventh.
So opinions about where it sits in this order differ somewhat, but “2021 will remain in the history books due to a record temperature of nearly 50 degrees Celsius in Canada, exceptional rainfall and deadly floods in Asia and Europe and droughts in some African and South American countries.” regions,” summarizes the WMO CEO.
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