In Gore's case, carbon offsets they make money and deliver profits to him through Generation Investment Management, whose chairman is . . . Al Gore.
http://www.google.com/search?q=gore+GIM&sourceid=navclient-ff&ie=UTF-8&rls=GGGL,GGGL:2006-31,GGGL:en
Buzz words that should immediately raise the B.S. flag.
Pay more, get less; but do it for the children.