When I had mechanical problems, I produced 100% Carbon Monoxide, and 0% Carbon Dioxide. It killed the 4 people inside me, but at least global temps didn't rise.
>>46 bought the stuff needed to repair me, leading to 99% CO2 and 1% CO. CO2 is the pollution now, damnit, CO was just blamed waay back then when people didn't understand enviromentalism.