November 2020 was the hottest November on record, according to the European service Copernicus, which streamlines environmental data around six themes: soil, oceans, emergency treatment, atmosphere , security and climate change.
Globally, the November temperature significantly exceeded (by 0.13 ° C) the previous record held tied by November 2016 and November 2019, to stand at + 0.77 ° C above the average temperature from the period 1981-2010.
Temperatures were particularly high in Siberia, the Arctic Ocean, parts of northern Europe and the United States, Latin America and western Antarctica. And the Arctic sea ice was at its second lowest level. A situation “Worrying and which underlines the importance of a global surveillance of the Arctic, which is warming faster than the rest of the world”, underlined Carlo Buontempo, director of the European Copernicus service.
While the southern summer is just beginning, Australia has already experienced a first heat wave, with 48 ° C recorded in Andamooka in South Australia, and new fires ravaging the forests of Fraser Island, an island on the coast. is classified as World Heritage. And Europe had its mildest autumn on record, averaging 1.9 ° C above the base period, and 0.4 ° C above the previous autumn 2006 record.
Five years of the Paris Agreement
The twelve-month period from December 2019 to November 2020 is also 1.28 ° C above the temperatures of the pre-industrial era, explains Copernicus in its monthly climate report published on Monday, December 7. While the years 2015 to 2020 are the six hottest on record, that figure puts the planet dangerously close to the first ceiling of the Paris Agreement, which turns 5 this week.
The pact, concluded in 2015 by nearly 200 states which have committed to reducing their greenhouse gas emissions, aims to contain global warming to well below + 2 ° C, if possible to + 1.5 ° C. , to limit the devastating impacts of storms, droughts and other heat waves already at work. But the planet has gained an average of 0.2 ° C per decade since the end of the 1970s, insists Copernicus. Warming is already around 1.2 ° C and 2020 is unlikely to reverse the trend.
The World Weather Organization (WMO) announced on Wednesday that 2020 would be on the podium of the hottest years. Provisional data places it second behind 2016 for the moment, but the gap is small, the ranking could change. Adding the new data for November, “2020 is now even closer to the 2016 record”, said Copernicus on Monday, believing that it could finish on the first step, tied or even alone, unless a change of trend is always possible.
“These records align with the long term trend of global warming”, commented Carlo Buontempo, director of the European Copernicus service, calling on leaders to “To see these records as alarm bells and to seek the best ways to respect the commitments of the Paris agreement”. On Saturday, the summit organized by the United Nations (UN) and the United Kingdom on the occasion of the 5e anniversary of the Paris Agreement will be an opportunity to relaunch the ambitions of the fight against global warming.
Copernicus’s satellite database for observing temperatures dates back to 1979, but conventional data from Earth and other agencies do not show a warmer year until 1979, since the pre-industrial era.