Those who measure the atmospheric carbon dioxide at Mauna Loa have recorded in March 2013 a monthly average concentration of 397.34 parts per million compared with 394.45 ppm which was recorded in March 2012. The April figures are not yet our but in May the average concentration exceeded 400 ppm, which level of concentration the earth has not experienced for more than 5 million years. It is, in my view, certain that the atmospheric carbon dioxide concentration will average more than 400 ppm by the end of this year.
We are, as humans, moving into a new place.
Filed under: carbon emissions, climate change, global warming Tagged: | atmospheric carbon dioxide, carbon dioxide, carbon dioxide concentration, climate, environment, gmd, levele of atmospheric carbon dioxide, mauna loa, Mauna loa measurements, science