Carbon dioxide levels now higher than at any time in past 3.6 million years

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Carbon dioxide levels now higher than at any time in past 3.6 million years

Image via UK Met Office.Levels of climate-warming carbon dioxide (CO2) and methane in the atmosphere continued to rise in 2020, with CO2 levels reaching their highest point in 3.6 million years, according to NOAA research, despite the economic slowdown caused by the coronavirus pandemic response.According to the NOAA report, released April 7, 2021, the global average for CO2 in the atmosphere in 2020 was 412.5 parts per million (ppm) in 2020, ri…