Tag Archives: present co2 levels in atmosphere

What is the present level of atmospheric carbon dioxide ?

What is the present level of atmospheric carbon dioxide? On May 9th, 2013, the global atmospheric daily concentration of CO2 crossed 400 ppm level mark.  On that day the recorded CO2 Concentration was 400.03 ppm as per the NASA’s Mauna Loa observatory in Hawaii. The observatory has been monitoring the atmospheric concentration since last 57… Read More »