Keeling Curve: http://en.wikipedia.org/wiki/File:Mauna_Loa_Carbon_Dioxide-en.svg

Impact of Kaya Factors on CO2: http://www.eia.doe.gov/oiaf/ieo/highlights.html

World CO2 Emissions: http://upload.wikimedia.org/wikipedia/commons/d/d1/Countries_by_carbon_dioxide_emissions_world_map_deobfuscated.png

Global CO2 per Capita: http://upload.wikimedia.org/wikipedia/commons/4/4b/CO2_per_capita_per_country.png