Well whatever the number is China will surpass it on their own and with no serious controls on coal use for power production and heating, the environmental morons can push us all to live in caves in America and it won’t make a dent in the problem. I do not care how much or how little Humans are adding to the CO2 levels that can push climate changes. Bankrupting the one nation that is working to reduce it’s emissions more than any other is Beyond moronic.. it will destroy this nation. Then what do you think the rest of the world will do…. They will increase CO2 output and Americans will be used to shovel the coal into the furnaces.