NASA / GSFC-SVS / SCIENCE PHOTO LIBRARY NASA / GSFC-SVS / SCIENCE PHOTO LIBRARY
Global carbon dioxide variations, 2005. Map showing the global variation in average atmospheric carbon dioxide levels in the troposphere on 14 July 2005. This is part of a sequence showing the average carbon dioxide levels increasing from 2003 to 2008, changing colour from green to yellow and orange. A scale is at lower left. Superimposed on this is a graph of the annual change at one spot (the Manua Loa Observatory in Hawaii). This shows the cyclic change with the seasons, but also an increase over the six years. The global data is from the AIRS (Atmospheric Infrared Sounder) on NASA's Aqua satellite.
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