Inhale. Exhale. Repeat. Our #climate is oblivious, but LIKES more CO2. @alexepstein #p2 #AGW http://t.co/CrYqZXYJwY pic.twitter.com/q9qwst7RSV
— Heartland Institute (@HeartlandInst) December 19, 2014
In any case, I recall reading somewhere that humans exhale only 0.9 kg/day of CO2 -- just a couple percent of what we Americans emit (an per capita average of 47 kg/day (= 104 lbs/day)) by burning fossil fuels.
Sad thing is, I doubt @HeartlandInst care one iota that they got this wrong.
Figure: Carbon Dioxide Levels in the Holocene. Taken from the IPCC's AR4 Synthesis Report (Figure 2-3). Via PeakWatch.