Good point. In the US, per capita carbon emmissions also vary wildly by state. http://www.eia.gov/environment/emissions/state/analysis/ http://www.eia.gov/envir

Good point. In the US, per capita carbon emmissions also vary wildly by state. http://www.eia.gov/environment/emissions/state/analysis/ http://www.eia.gov/environment/emissions/state/analysis/