My biggest beef with the global warming debacle is the hastiness to correlate it to emissions produced by humans. Even if there is global warming it is a LONG stretch to say it is because of people. I think I would agree with Rattler in that we are entering a part of a cycle that has happened before and inevitably will continue to happen.
Humans contribute at most 5% of the CO2 many are blaming for the heating trend. Even if global warming is true, it's not because of what we are doing... we can't stop a natural cycle by simply banning SUVs and planting more trees. What is happening will continue to happen until we work our way out of the current trend. THAT being said, I also believe we are to be responsible and respectful of nature. Any person who uses the rationale I posed as a means to act irresponsibly is an idiot.
My 2 cents. If you are interested there is MUCH data on both sides of the subject. Just don't get your lesson from a politician posing as a climate expert