im sorry i should have sourced it:
http://www.newscientist.com/article.ns?id=dn1806
http://news.bbc.co.uk/1/hi/sci/tech/4565935.stm
too lazy to find more.
but there is one thing i noticed that hasnt been thrown out there. deforrestation and industrialization. deforrestation (according to grolier, i cant directly source it unfortunately because you need an account to view its content) causes more of a change on climate and temperature than emissions for one main reason: surface albedo. im sure most of you are familiar with the term but those who arent its the reflectivity of a surface. by removing forrests, you drastically increase the surface albedo, and same with cities, except this increases the albedo even more. with more heat getting reflected from the ground, thats more heat to be suspended in the troposphere due to opaque emissions and THERE is a much better, and more believable (in my books), explanation of global warming.