Because, with absolute certainty, THE BOMB was gonna destroys us
  all when I was growing up. I had nightmares of atom bombs; it
  was the last gasp of the Cold War and in middle school, I got to
  see Gorbechev and Reagan shaking hands and the wall come down.

  But as that was going on, the focus was already shifting. late
  elementary/early middle school began talks of global warming.
  There was _one_ - and only one - teacher who showed us competing
  theories of climate change, but the change in all the textbooks
  had already begun.

  In the 90s, scientists couldn't get published in a peer review
  journal and ESPECIALLY could not get funding UNLESS they added
  something to do with Global Warming on it. It's where the money
  was at. It would be like doing Theoretical Physics or
  Mathematics in the mid-late 90s WITHOUT making it have something
  to do with String Theory.

  Go where the money is.

  It's not conspiracy; just the nature of things.

  That's not to say that Global Catastrophe isn't possible. Of
  course it is. And somebody will be worried about it. And
  somebody will take care of it.

  But me? I'm a 43 year old man sitting behind a computer in
  Naples, Florida USA. I'm not in any position of power to
  influence *any* of these potential catastrophes. I'm not of war
  age, so I don't have to worry about wars going on.

  I recycle because I believe it's a good idea. I don't throw
  trash out the window because it looks gross on the roads.

  I'm a nice guy because I believe in the power of friendship.

  But global stuff?

  It would just be words coming out of my mouth and emotions in my
  biochemical system that felt a fear and distress over tigers
  that aren't coming after ME.

  Biologically 100,000 years old and our limbic system doesn't
  know the difference between a dream where a tiger is repeatedly
  coming after us, or watching a news story showing the same
  horrible clip over and over again.

  Same emotional responses and, like with a dream, equally nothing
  one can do about it except wake up and look around where you
  REALLY ARE RIGHT NOW.