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 UNEP/GRID-Arendal)
Sources: Centre for Climatic Research, Institute for Environmental Studies, University of Wisconsin at Madison (USA); Okanagan University College (Canada), Geography Department; World Watch, November-December 1998; Nature; Intergovernmental Panel on Climate Change, 2001 and 2007.
Uploaded on Thursday 16 Feb 2012
The Carbon cycle
The figures indicate carbon storage and flows, expressed in Gigatonnes (1 000 million tonnes) of carbon.
The arrows are proportionate to the volume of carbon.
The figures for the flows express amounts exchanged annually.