Jonathan Kemper on Unsplash
'We Have to Act': Atmospheric CO2 Passes 420 PPM for First Time Ever
Kenny Stancil, Common Dreams
When the National Oceanic and Atmospheric Administration (NOAA) research station "began collecting CO2 measurements in the late 1950s, atmospheric CO2 concentration sat at around 315 PPM," the Washington Post reported. "On Saturday, the daily average was pegged at 421.21 PPM—the first time in human history that number has been so high."
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