NYT: 'Cold Season Loses Its Chill, Giving a New View of Winter'
By MATTHEW L. WALD
Published: June 30, 1991
Excerpt: 'Not only the cold war is over; so, apparently, are cold winters. The official heating season of 1990-91 ends today, and in many places, the weather was the mildest it had been in 30 years....Meteorologists say that although a series of many warm winters is consistent with global warming, it is far from being conclusive evidence. Mr. Knight, the meteorologist, said it was possible that North America goes through cycles of 100 or 150 years, with warm temperatures now approaching a peak, and then a shift back to colder temperatures. If that happens, he said, "in 15 years we could think that in the 1990's we were stupid, thinking it would be hot all the time." But accurate records do not extend far enough to tell if we are in such a cycle, he said.