Using this graphic and referring to it is encouraged, and please use it in presentations, web pages, newspapers, blogs and reports.
For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Hugo Ahlenius, UNEP/GRID-Arendal)
NOAA Earth System Research Laboratory. 2007. Monthly mean atmospheric carbon dioxide at Mauna Loa Observatory, Hawaii. http://www.esrl.noaa.gov/gmd/ccgg/trends/co2_data_mlo.html (Accessed November 8, 2007)
Uploaded on Saturday 25 Feb 2012
Atmospheric concentrations of carbon dioxide (CO2) - Mauna Loa or Keeling curve
Hugo Ahlenius, UNEP/GRID-Arendal
Atmospheric concentration of CO2 is steadily rising, and oceans directly assimilate CO2. As ocean concentration of CO2 increases, the oceans automatically become more acidic. This, in turn, may have severe impacts on coral reefs and other biocalcifying organisms. There is little debate on the effect as this is a straight-forward chemical process, but the implications for marine life, that may be severe due to many very pH-sensitive relationships in marine ecosystems, are still unknown.