On occasion I have the painful opportunity to talk to individuals about “Global Warming”. Those that are zealous believers, in my experience, tend to be young and liberal. The reason age is important is that I remember my teachers telling me as a child that we were destroying the planet because of pollution. Problem is that back in the 70’s we were being told that it was a coming Ice Age that would overtake the planet. If you are a Global Cooling Denier then here are some excerpts from a Time article on the subject from 1974 titled Another Ice Age?.

As they review the bizarre and unpredictable weather pattern of the past several years, a growing number of scientists are beginning to suspect that many seemingly contradictory meteorological fluctuations are actually part of a global climatic upheaval. However widely the weather varies from place to place and time to time, when meteorologists take an average of temperatures around the globe they find that the atmosphere has been growing gradually cooler for the past three decades. The trend shows no indication of reversing. Climatological Cassandras are becoming increasingly apprehensive, for the weather aberrations they are studying may be the harbinger of another ice age…

…When Climatologist George J. Kukla of Columbia University’s Lamont-Doherty Geological Observatory and his wife Helena analyzed satellite weather data for the Northern Hemisphere, they found that the area of the ice and snow cover had suddenly increased by 12% in 1971 and the increase has persisted ever since...

…Man, too, may be somewhat responsible for the cooling trend. The University of Wisconsin’s Reid A. Bryson and other climatologists suggest that dust and other particles released into the atmosphere as a result of farming and fuel burning may be blocking more and more sunlight from reaching and heating the surface of the earth…

The reason, I suspect, many scientists are off the mark is that they are not applying the basic principles of scientific discovery to subjects that are often political, such as pollution. Back in the 60’s and 70’s everyone looked around and said “This pollution must be bad for the planet so what is the result of this? Hey temperatures have dropped!”. Problem is that scientist then and now can not repeat the results of tests that prove the assumption. I believe the same is true today with global warming. When the temperatures starting rising suddenly the template did not work. So the same academia that brought you The New Ice Age now said man was causing Global Warming.