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Methane Emissions Spiked in 2020 Scientists Fear Feedback Loops
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Scientists warn CO2 levels in 2020 were higher than anytime in the last 3 6m years
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ثاني أكسيد الكربون في الغلاف الجوي يبلغ مستوى قياسيا لم يسجل منذ 3 6 مليون سنة -
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Carbon dioxide levels saw a surge in 2020 to the highest since the mid-Pliocene era 3.6 million years ago.
During this prehistoric time period, sea level was about 78 feet higher and the Earth s temperature was about 7 degrees Fahrenheit warmer than our modern-day world.
The year-over-year rise in CO2, 2.6 parts per million, is one of the highest recorded since NOAA started tracking more than 60 years ago.
The agency didn t offer an explanation for the increase, but its possible the effect was cumulative.
In addition, electricity usage in the residential sector actually increased during lockdown.
Since 2000, atmospheric CO2 has risen about 12 percent and atmospheric methane has increased six percent.
8 April 2021
Scientists have recorded a surprising rise in atmospheric carbon dioxide and methane levels over 2020, seeming to contradict predictions that the pandemic would see a temporary slowdown in the build up of greenhouse gases in the atmosphere.
Research by United States government agency the National Oceanic and Atmospheric Administration (NOAA) found average surface level atmospheric CO
2 levels hit an all-time high of 412.5 parts per million (ppm), up 2.6 ppm on 2019 levels.
That was the fifth highest increase on record, after 1987, 1998, 2015 and 2016. Atmospheric CO2 levels are now the highest they have been for 3.6 million years. Back then sea levels were 24 metres higher than they are today, and the world was about 4 degrees hotter.