ripdog: please list all the "greenhouse gases" *NM*

CO2, CH4, N2O, SF6, CFC’s, HFC’s, PFC’s, and water vapor all act as greenhouse gases. Did I miss any? What’s your point?

You missed CCl4, MeCCl3, a couple of fluoro-carbons and ozone. Not sure what the point was, but it's sure great to be able to use my Chemistry education and environmental industry experience once in a while.