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2020 was one of the hottest years officially recorded, a sign of continued global warming, according to some analyzes released by scientists around the world last week.
The heat record comes after a year plagued by climate disasters: historic heat waves, hurricanes and wildfires.
“It is clear that this is a sign that global human-induced climate change is as strong as the force of nature,” said Petteri Taalas, secretary general of the World Meteorological Organization.
Analyzes do not match whether 2020 has been the hottest year ever recorded. According to a NASA report released on Thursday, 2020 said 2016 is the hottest year ever. effectively linking the record. Another analysis, published on Thursday According to the National Oceanic and Atmospheric Administration, 2020 was close to 2016. Last week, the European Union’s Copernicus Climate Change Service set 2020 Equated to 2016 like the hottest year.
The implications are somewhat different as research teams apply different techniques to global temperature imaging based on temperature observations made at thousands of weather stations.
The 2020 heat record is the last of the years with more heat.
“The last seven years have been the hottest seven years,” said NASA researcher Lesley Ott. So regardless of where individual years fall, “the consistency of being the hottest in recent years is very, very clear,” he said.
For all of these analyzes, “the difference between 2020 and 2016 is less than the uncertainty of the record,” climate scientist Zeke Hausfather Berkeley Earth, an independent climate research group, told BuzzFeed News in an email. “So the tie is the hottest.”
In 2020 there was a roaring heat throughout the year, with the La Niña natural cooling phenomenon only affecting towards the end.
“Despite the extraordinary heat of 2020 being the La Niña event, it has a temporary cooling effect,” Taalas said.
Climate change caused other important heat records in 2020.
Siberia experienced a month-long heat wave and the Arctic people of Verkhoyansk got the hottest day of the day, reaching 100 degrees Fahrenheit on June 20th. he concluded.
According to the Copernicus analysis, it was the hottest European record in 2020, with 1.6 degrees Celsius above the average temperature from 1981 to 2010. In 2019 there was this pre-record, where the observed temperatures were 0.4 degrees Celsius higher than at the same time.
It was also marked last year The busiest hurricane season known in the Atlantic Ocean, as well as historically Harmful range of fires in the western United States. The result was experienced by the US most of the $ 1 billion disaster 2020 also started the year The worst wildfires in Australian history. In addition, carbon dioxide levels continued to rise into the atmosphere, reaching a maximum of 413 parts per million last May.
Meanwhile, the pandemic caused an economic shock US emissions will fall by approximately 10.3% In 2020, according to a preliminary study by the Rhodium Group research organization, a a greater tendency to reduce emissions last year. But a short drop in emissions will not be enough to stop the global warming trend, which will require a reduction in long-term emissions.
“The vast majority of the warming we’re seeing is due to human emissions of greenhouse gases,” Ott said.
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