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Last month was the hottest September on record by an “extraordinary” margin as the world flirts dangerously with breaching a key warming limit, the EU climate monitor said on Thursday.
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Much of the world sweltered through unseasonably warm weather in September, in a year expected to be the hottest in human history and after the warmest-ever global temperatures during the Northern Hemisphere summer.
September’s average surface air temperature of 16.38 degrees Celsius (61.5 degrees Fahrenheit) was 0.93C above the 1991-2020 average for the month and 0.5C above the previous 2020 record, the Copernicus Climate Change Service (C3S) said in a report.
Temperature records are normally broken by much smaller margins closer to one-tenth of a degree.
The report said the figure was “the most anomalous warm month” in its dataset going back to 1940 and around 1.75C hotter than the September average in the 1850-1900 pre-industrial period.
“We’ve been through the most incredible September ever from a climate point of view. It’s just beyond belief,” C3S director Carlo Buontempo told AFP.
“Climate change is not something that will happen 10 years from now. Climate change is here.”
The unprecedented September temperatures “have broken records by an extraordinary amount”, added C3S deputy director Samantha Burgess.
On course for hottest year
Global average temperatures from January to September were 1.4 degrees Celsius higher than 1850-1900, almost breaching the 1.5C warming goal of the 2015 Paris Agreement, C3S reported.
That threshold was the more ambitious target of the accord and is seen as essential to avoid the most catastrophic consequences of climate change.
The January-September average global temperature was 0.05C higher than the same nine-month period in 2016, the warmest year recorded so far.
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