Quote Originally Posted by doc_bean
That's a completely different issue. CO2 isn't even traditionally thought of as pollution afaik.
That's why I said pollution as a general concept, and not CO2 only. We have CH4, CO, CO2, N2O, NO2, SO2, SF6 (really dangerous thing), for instance.

N2O is probably the most interesting thing. It's also known as laughing gas, which is why some people just lean back and laugh while the other polluted chemicals are destroying earth.