A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the ...
The claim: Antarctica hasn't warmed for over 70 years because humans have only contributed 40 ppm of CO2 to the atmosphere A Dec. 1 Instagram video (direct link, archive link) shows a headline that ...
For the first time, measurements of atmospheric carbon dioxide (CO 2) taken at Mauna Loa Observatory in Hawaii exceeded 400 parts-per-million on an hourly basis. It's a symbolic benchmark, but an ...
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