I'm no kook, but I have to say I've been re-motivated to take some more personal responsibility for the environment. Mariana and I saw An Inconvenient Truth and boy was it compelling. I'm always wary of spin, so I saw this movie with a fairly critical eye. I felt like Al Gore presented facts that added up to a very inconvenient truth indeed.
I've always had a fascination with alternative energy. My motivation came primarily from my wallet (free power!) and secondarily by feeling I would be sticking it to the man by finally making him pay ME to be connected to the grid. Both of these are still motivating factors, I now feel much more comfortable making the initial investment in a solar installation or similar sort of thing.
It also seems to me that there ought to be a way to get filthy, filthy rich from the changing paradigm. If the folks maintaining the status quot of the oil-driven economy are so keen on protecting it, there is sure to be tons of money behind toppling it. Enough for now. Recycle something, or better yet, reuse it.