http://www.greenhousenet.org/20_steps.htm
http://www।time.com/time/specials/2007/environment/
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/11/14/MNFHTBKMA.DTL
http://blog.washingtonpost.com/thedebate/2005/10/can_global_warm.html
http://canadaonline.about.com/od/environment/i/kyotoprotocol.htm?p=1
No comments:
Post a Comment