Global Warming, Pascal's Gambit and the Senior Senator from Arizona

Sen. John McCain:

Suppose that climate change is not real and all we do is adopt green technologies which our economy and technology is perfectly capable of, then all we've done is given our kids a cleaner world.

But suppose they're wrong and climate change is real and we've done nothing? What kind of a planet are we going to pass on to the next generation of Americans?

Reminds me of a time, oh so long ago, when I used to respect Sen. McCain.