Jubilee Post News & Views
Dr. Seema Javed
This year in September theEarth’s surface was warmest than during any other year, making it the hottest September on earth.The Copernicus Climate Change Service (C3S) analysis data show that the month was 0.63ºC above the average September temperatures of the standard thirty-year climatological reference period (1981-2010). This makes September 2020 0.05°C warmer than September 2019, and 0.08°C warmer than September 2016, previously the warmest and second warmest Septembers.
The temperatures were well above average in many regions across the globe, including off the coast of northern Siberia, in the middle East, in parts of South America and Australia.
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C3S is implemented by the European Centre for Medium-Range Weather Forecasts (ECMWF) on behalf of the European Commission, and monitors global and European climate.Across Europe, average temperatures in September were about 0.2°C warmer than the previous of 2018.
C3S scientists further reveal that For the 12-month period through September, the planet was nearly 1.3 degrees Celsius above pre-industrial levels. which is alarmingly close to the 1.5C threshold for severe impacts detailed in a major 2018 report by the UN’s climate science advisory panel, the IPCC.
Even in the Siberian Arctic, temperatures continued to be warmer than average in September, continuing a warm spell that has affected different parts of the vast region since early spring. This resulted in the average Arctic sea ice extent for September as the second lowest recorded, after September 2012. The ice cover reaches its annual minimum.
Although Siberia and the Arctic have large temperature fluctuations from year to year, the relative warmth observed this year has been unusual in its magnitude and persistence.
The Arctic as a whole has been warming substantially faster than the rest of the world. This phenomenon – termed Arctic amplification – can be explained in part by feedback mechanisms associated with the snow and ice cover, whereby an initial warming causes an increase in melt rates, which in turn further increases warming.
Carlo Buontempo, Director of Copernicus Climate Change Service at ECMWF, explains: “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. The combination of record temperatures and low Arctic sea ice in 2020 highlight the importance of improved and more comprehensive monitoring in a region warming faster than anywhere else in the world.”
So far, Earth has warmed on average by one degree and is facing the intensity of deadly heatwaves, droughts and tropical storms made more destructive by rising seas. If the global warming continues, we call easily imagine what will happen…?
Climate change driven by greenhouse gas emissions from burning fossil fuels has picked up pace in recent decades.Nineteen of the 20 last years are the warmest since accurate readings began in the late 19th century.
