http://www.amazon.com/Earth-Under-Siege-Pollution-Global/dp/0195142748/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1210616596&sr=1-1
This book covers all the chemistry involved in the grand discussion of global climate change including smog, COx, NOx reactions, carbon sinks, indoor air quality, mercury deposits in the polar ice caps, and beyond. If you can get through it all, you're a bigger man than me.
This is science, ie chem1+chem2->reaction producing chem3. Its not as fun as bashing and trashing the messengers, but its worth knowing if your interested in scientific method.