'An Inconvenient Truth' - washingtonpost.com
Philadelphial Pa.: We should all be stewards of the earth and take care of how we impact it. But how do you explain that his shift in climate is not naturally occurring? After all -- we had an ice age once before and the earth warmed up well before humans and cars and industry. How do we know that this just not a cycle?
Laurie David: We know its not just a natural cycle because all of the experts, all of the scientists say its not. Facts are facts.
There is now more CO2 in the atmosphere than in the last 650,000 years and just basic common sense tells us that cannot be a good thing.