Global CO2 emissions tracked by EPA (Environmental Protection Agency). Image edited to show economic factors and event point of influence. Source: http://www.epa.gov/climatechange/emissions/globalghg.html
This visualization is a time-series of the global distribution and variation of the concentration of mid-tropospheric carbon dioxide observed by the Atmospheric Infrared Sounder (AIRS) on the NASA Aqua spacecraft. For comparison, it is overlain by a graph of the seasonal variation and interannual increase of carbon dioxide observed at the Mauna Loa, Hawaii observatory. The AIRS data show the average concentration (parts per million) over an altitude range of 3 km to 13 km, whereas the Mauna Loa data show the concentration at an altitude of 3.4 km and its annual increase at a rate of approximately 2 parts per million (ppmv) per year.
2009 - Carbon Dioxide by Country Source: http://www.epa.gov/climatechange/emissions/globalghg.html
Carbon Dioxide by Percentage of emissions. Source: http://www.epa.gov/climatechange/emissions/globalghg.html
Ice core analysis reveals that CO2 levels for the past 650,000 years have never been as high as they are now. Source: http://climate.nasa.gov/evidence/
Methane, temperature (from hydrogen isotope ratios and carbon dioxide from the Dome C Ice core. (EPICA) Project members, 2006). Steig, Univ. Washington. Source: http://www.ess.washington.edu/~steig/images/epicagore.gif