In the 1970's he warned that global warming could be a problem but was ignored because the scaremongering tactic at the time was focused on global cooling.
He also points out other examples where "everybody knew" something which later turned out to be false.
Here's an excerpt:
Impact of global warming looms on the horizon
By Glenn Shaw
Fairbanks Daily News-Miner
April 22, 2007
...Global warming is now being noted, and I in the meantime have become a little skeptical about some of the claims being put forth. I’m skeptical despite the fact that “everybody knows that the science is in.” The science isn’t even close to being in.
A significantly large fraction of the science being done on global climate change is perhaps not wrong, but not enough, a little naive, repetitive and incorporating only a fraction of the complexity required to base policy on. Though we scientists don’t advertise it much, science is often muddled when it is working on difficult new problems and most especially when the problems start to become political. And the issue of global warming has become massively political. Special interests abound. Try getting funding while being a skeptic.
There is much more in climate science that we simply do not understand. Believe it or not, nobody has any sustainable theory, other than a few clues, about the causes of the ice ages. They are resonant with some of the orbital movements of the planets, but only roughly so and other things are going on that cause and end these spectacular events. We do not know.
Yet the socialist scaremongers behind the Global Warming movement would have us radically alter every aspect of our lives to meet their demands for an 80% reduction in greenhouse gases.
And there is no hard science to suggest that such a drastic step would benefit the planet in any way.Shaw ends his article with a few cautionary words of warning about climate change, no doubt to keep him being stoned to death by the Global Warming Taliban.
But he's another in a growing list of CREDIBLE scientists who dispute the left's scaremongering.