Science

September was the world's 'hottest on record'

September was the world's 'hottest on record'”

"The last five years have themselves been the five warmest on record", Freja Vamborg, a scientist for Copernicus, said, according to NBC News.

Many scientists have claimed that it's a direct product of emissions from human beings.

It was 0.05C hotter than September a year ago, which in turn set the previous record high for the month.

Averaging over 12-month periods smooths out shorter-term variations in regional and global-average temperatures. Such a thing is very close to the 1.5C threshold for extreme impacts explained in a major 2016 report by the IPCC.

The Paris Agreement, of which many UN nations are signatories, has nations aim to cap global warming "well below" 2 degrees Celsius and at 1.5 degrees if possible. 19 of the 20 last years are reported to be the warmest since precise readings emerged in the late 19th century.

So far, the planet has warmed on average by 1C, enough to raise the intensity of deadly heatwaves, tropical storms, and droughts made more unfavorable by rising seas. This year is also projected to break a temperature record, despite an initial drop in emissions due to the pandemic. Australia, not a novice when it comes to heat, did comparatively well: last month was only the second highest on record. And it helped fuel the torrential downpours that flooded the south of France with more than half a meter of rain in a day. May 2020 was also the hottest May on record, with temperatures in Siberia a full 10°C above average.

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Monitors of the Paris Climate Agreement will view the figures with particular alarm: for the 12-month period through to September 2020, the planet was almost 1.3 degrees Celsius (2.4 degrees Fahrenheit) warmer than pre-industrial levels.

The European Union's Earth observation programme, Copernicus highlighted the unprecedented warming that has taken place in the Siberian Arctic, which is way above average.

Monitoring by C3S also confirms that the average Arctic sea ice extent for September - the month when it is at its lowest after the summer melt before refreezing in winter - was the second lowest recorded for the month, after 2012.

September, 2020 was the hottest month ever!

Carlo Buontempo, Director of Copernicus Climate Change Service at ECMWF, said in a statement: "In 2020, there was an unusually rapid decline in Arctic sea ice extent during June and July, in the same region where above-average temperatures were recorded, preconditioning the sea ice minimum to be particularly low this year".



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