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June 6, 2022

Atmospheric CO2 Hits 420 Parts Per Million, 50% Higher Than Pre-Industrial Levels
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In climate news, the amount of carbon dioxide in the atmosphere has
reached its highest level in human history. The National Oceanic and
Atmospheric Administration says concentrations of CO2 topped 420 parts
per million in May - that's 50% higher than levels at the start of the
Industrial Revolution. Last year, humanity added more than 36 gigatons
of carbon dioxide pollution to the atmosphere - a record one-year total.


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