Carbon dioxide levels are higher than they've been at any point in the last 3.6 million years
CBSN
Carbon dioxide (CO2) and methane levels in the atmosphere continued to rise in 2020, with CO2 level reaching their highest point in 3.6 million years, according to calculations by the National Oceanic and Atmospheric Administration. The barrier was broken despite a reduction in expected emissions caused by the COVID-19 pandemic.
NOAA reported that the global average of atmospheric CO2 hit 412.5 parts per million (ppm) in 2020, a rise of 2.6 ppm from 2019, the fifth-largest increase since they began measuring atmospheric CO2 levels 63 years ago. The rise happened despite an estimated 7% reduction in global emissions due to the pandemic. Pieter Tans, the senior scientist at NOAA's Global Monitoring Laboratory, estimates that 2020 would have been a record-breaking year had it not been for the pandemic.
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