Repost from Yahoo Green
Myth: Global warming is just part of a natural cycle. The Arctic has warmed up in the past.
Fact: The global warming we are experiencing is not natural. People are causing it
Myth: Even if global warming is a problem, addressing it will hurt American industry and workers.
Fact: A well designed trading program will harness American ingenuity to decrease heat-trapping pollution cost-effectively, jumpstarting a new carbon economy.
Follow this link for analysis and additional myths & facts http://green.yahoo.com/global-warming/ed-14/global-warming-myths-and-facts.html;_ylt=An3vxqCcXzNzFz6qpeFxr7CDV8cX