The gas emission annual balance performed by scientists associated with Global Carbon Project shows that the atmospheric concentration of carbon dioxide (CO2) is the biggest one already estimated in two million years. The study released by the outstanding scientific magazine Nature Geoscience, has among its authors Jean P. Ometto, of Earth System Science Center from National Institute for Space Research (CST/INPE).
With serious impacts on climate, the CO2 variations on Earth atmosphere are most of them determined by men, due to industrial activities, burn of fossil fuels, deforestation and some other changes in the land use.
According to this study, the rising on atmospheric CO2 concentration was 1.8 ppm in 2008, a little lower than the average for 2000-2008 period that was 1.9 ppm per year (ppm=parts per million). This rise turned the CO2 atmospheric concentration to 385 ppm in 2008, 38% over the one recorded in the Industrial Revolution beginning (about 280ppm in 1750). This was considered the most elevated concentration that has ever been registered in the last two million years.
Source: INPE