http://library.curtin.edu.au/infotrekk/trek6.html
Or go to a university/public library and use lexis nexis to search for peer reviewed journal articles.
I can give you lots of articles on it (outside of links I already gave you. Over lunch I will review some recent journal articles that should be relevant.
http://www.environmentaldefense.org/...contentid=2971
ED is an environmental advocacy and lobbying group, they have very good resources if you want the environmental side of it.
It includes reports of the current science as well.
http://www.undoit.org/undoit_article.cfm#sec5