I was stunned because [An Inconvenient Truth] was so 
  powerful that my wife told me we couldn’t burn incandescent 
  bulbs anymore. She didn’t become a zealot; she just 
  realized that [climate change] was serious and we have to
  do something.

Well, that's something, I guess. Not going to make much of a difference, though. As David Mackay says in Sustainable Energy - without the hot air, "If everybody only does a little, the impact will only be a little."