Upon viewing a very disturbing report on NOVA (public TV) on how the planet's ice is melting at an increasingly alarming rate, I became afflicted with one of my periodic guilt trips about how much CO2 my E30 is putting into the atmosphere relative to current models. Then I wondered, well, how much more CO2, particulates, and NOx do our cars actually produce? If someone knows this information, do tell, or perhaps point me in the direction where I can suss it out myself. I know I don't have to pass emissions tests in Massachusetts because of the age of the car. I have to admit I have thought more than once about selling my black beauty and buying the new Honda CR-Z hybrid sports car when it comes out for MY2011 because of a concern about my potentially excess contribution to global warming. Help!