Have a tall cool glass of Global Warming
From This review of The Revenge of Gaia
Most of us love our lifestyle far too much to think seriously about doing anything to protect the world for future generations.
The problem with tackling a topic like Global Warming is that no one knows for sure what the earth would be like without people crapping it up all the time. And since Scientists don't have an untouched earth to compare the current earth too, they can never be certain the earth isn't just going through some normal earthly cycle.
Cum Hoc Ergo Propter Hoc
"with this, therefore because of this" or "after this, therefore because of this"
Any first year Statistics student is taught that "correlation does not imply causation." While correlation may be indicative of a relationship, it is not definitive. Only through experimentation can a causation be confirmed. Basically, that means in order for you to prove--beyond doubt--humans are responsible for global warming you would need other planets, similar to earth, untouched by any human. Easy, right?
Just because Global Warming can't be proved beyond doubt doesn't mean we shouldn't take steps to protect the environment, it just means our understanding isn't complete and you should be skeptical of any person or organization that uses global warming to advance an agenda (I'm looking at you Al Gore).
At the end of the day though, I agree with the quote above. Even though most people recognize we are causing problems with the world, nobody wants to take the necessary steps and actually sacrifice the luxuries of modern living to prevent something like Global Warming in the face of less than definitive scientific proof. Except for maybe that Ed guy. He seems pretty committed to the environment, though the gas, electricity, and products the cameramen consume might be another ball of wax entirely.