"We're brainwashing our children," said Dr Gray, 78, a long-time professor at Colorado State University. "They're going to the Gore movie [An Inconvenient Truth] and being fed all this. It's ridiculous."
Dr Gray, whose annual forecasts of the number of tropical storms and hurricanes are widely publicised, said a natural cycle of ocean water temperatures - related to the amount of salt in ocean water - was responsible for the global warming that he acknowledges has taken place.
However, he said, that same cycle meant a period of cooling would begin soon and last for several years.
"We'll look back on all of this in 10 or 15 years and realise how foolish it was," Dr Gray said.
HT to Powerline.