Beware of Scientific Warnings

I'm a big fan of John Stossel's non-partisan, no-nonsense approach to reporting. He brings up a very good point about science in general:

If you're a scientist working for private industry, it helps to invent something useful. But if you're a scientist trying to get funding from the government, you're better off telling the world how horrible things are.

Examples of past exaggeration is crack babies. Could global warming be an example of present day over-exaggeration? Be forewarned. Many scientists do have an agenda.