while they are debunking it, you should have them read some actual science, unless, of course, you want them to end up as scientifically illiterate as some randian dogmatists

http://www.newscientist.com/article/...pollution.html

http://www.sciencedaily.com/releases...0925130649.htm

http://kie.berkeley.edu/ned/data/E01...71029-002.html

http://cfpub.epa.gov/ncer_abstracts/...t/443/report/0

http://www.nsf.gov/news/news_summ.jsp?cntn_id=110105

http://www.ehponline.org/qa/105-10news/

I know, you are going to pull out some crap written by Michael Fumento [[" the most interesting way to read it is as a negative example—of a kind of journalism that lowers the tone of the societal conversation about these issues. " - American Scientist review of one of his books) or another bought-and-paid for Monsanto mouthpiece