According to several analyzes published by scientists around the world last week, 2020 was officially one of the warmest years on record, a sign of continued global warming.
The heat record comes after a year of regulars by climate disasters: historic hurricanes, hurricanes and wildfires.
“This is a clear indication that global signals from man-induced climate change are now as strong as the forces of nature,” Petrie Talas, secretary-general of the World Meteorological Organization, said in a statement.
Analysts disagree on whether 2020 is the warmest year on record. A NASA report released on Thursday found that 2020 was the most recent loss in 2010. Effectively binds records. Another analysis, Published Thursday Through the National Oceans and Atmospheric Administration, the second is nearing completion by 2020. Bound to 2016 As the warmest year
The conclusions differed somewhat because research teams applied different techniques to sort out the global picture of temperature together based on temperature observations from thousands of weather stations
The 2020 heat record is the latest with more heat over the years.
“The last seven years have been the warmest seven on record,” said Leslie Ott, a NASA researcher. So no matter where the individual years fall, “the continuation of being the warmest on record 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,” independent research team Berkeley Earth climate scientist Jake Housefader told BuzzFeed News via email. “So it’s effectively the warmest one tie.”
Most of the year 2020 was marked by swollen heat, with only natural cooling events jumping towards the end by La Nina.
“The exceptional heat of 2020 is despite the La Nina event, which has had a temporary cooling effect,” Talas said.
Climate change has set another big heat record in 2020.
Siberia has experienced a month-long heatwave, with the Arctic city of Verkhoyans holding its warmest day on record, reaching 100 degrees Fahrenheit on June 20th. In conclusion.
According to Copernicus’ analysis, 2020 was the warmest year in Europe, with an average temperature of 1 from 1981 to 2010. 1. degrees Celsius higher. This was the record before 2019, where the observed temperature was 0.4 degrees Celsius higher than the same period.
Last year also marked The busiest hurricane season in the Atlantic OceanAs well as historically Harmful series of wildfires in the western United States. The result was his experience in the US The biggest billion dollar disaster In 2020. The year also kicked in with something The worst bushfire in Australian history. Moreover, carbon dioxide levels continued to rise in the atmosphere, hitting a new high of 413 parts per million last May.
Meanwhile, the epidemic caused an economic shock that caused U.S. emissions decreased by an estimated 10.3% In 2020, according to a preliminary analysis by the research firm Rhodium Group, a part of it There was a big trend of global emissions decline last year. But a brief reduction in emissions will not be enough to stem global warming – it will require a reduction in emissions in the long run.
“Most of the warming we’re seeing is due to human emissions of greenhouse gases,” Ott said.