CO2 information

References for the graphs below are:

Global CO2 emissions

http://cdiac.ornl.gov/GCP/images/global_co2_emissions.jpg

CO2 concentration (long term)

http://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_data_mlo.pdf

CO2 concentration (short term)

http://www.esrl.noaa.gov/gmd/webdata/ccgg/trends/co2_trend_mlo.png