Science
Carbon-Dioxide In Earth’s Atmosphere Spikes To Record Level – Forbes
Atmospheric carbon-dioxide level passes 420 PPM for first time in human history, as high as 15 million years ago.
Monthly average of carbon-dioxide concentration at Mauna Loa Observatory.
NOAA
The concentration of atmospheric carbon-dioxide surged past 420 parts per million (PPM) for the first time in recorded history this past weekend, according to a measurement taken by the National Oceanic and Atmospheric Administration (NOAA) at the Mauna Loa Observatory on the Big Island of Hawaii.
When NOAA began collecting carbon-dioxide measurements in the late 1950s, atmospheric CO2 concentration sat at around 315…
