Quote Originally Posted by DuncanONeil View Post

But Global warming 40 years? What about the threat of an ice age, that was touted inside that 40 years??
My point exactly. There was a theory that predicted an ice age, and within a few years it became clear that the things it predicted were not happening, so it was forgotten like a million other theories that didn't work out. And there was a theory that predicted global warming, and year after year the things it predicted happened just like the figures said, so more and more scientists came round to it, until it changed from a crank theory to the accepted fact and the Bush administration had to start firing people for saying it. That's how science works: by the evidence.

Which is why scientists don't speak the language of politics, where evidence is less important than who owns the media.