I have a heuristic/rule of thumb: If someone predicts the future
  and says, "In 10-15 years..." or "within 20-25 years", I look at
  their age. Ok, they'll live to see it. Hence the reason why the
  data manages to fit their lifespan.

  Most predictions of the future don't happen. That much is
  statistically true. No matter who makes the prediction. [that's
  if you believe statistics; for me, it depends on the data
  sources and the reasoning behind the study]

  So, I'm skeptical about "near future" predictions. I'm also
  skeptical of predictions where "doom and gloom" just *happen* to
  take place at a point in the future where WE STILL HAVE TIME TO
  FIX IT.

  It's a form of plausible hyperbole. Nothing wrong with it in the
  grand scheme of things I suppose; it accomplishes a lot - gets
  people moving. But... still founded on untruth and hyperbole.