World’s Monthly CO2 Levels Reached Highest in Human History
The monthly average of carbon dioxide in the atmosphere has reached the highest levels on record this past April, reaching up to 420 parts per million (ppm) for the first time since observations started, according to new data released by the National Oceanic and Atmospheric Administration (NOAA).
The numbers from Hawaii’s Mauna Loa Observatory, which is home to the longest continuous record of atmospheric carbon dioxide in the world, showed last month’s CO2 levels have surpassed the highest record of 419.13 ppm from May, 2021.
Twenty years ago, the highest recorded level was at 375.93 ppm and in 1958 when scientists first started collecting CO2 data at Mauna Loa, the maximum level was just at 317.51 ppm.
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