I have. As an retired engineer, after 40 years, I have studied the "problem" a lot. Answer is: there is no problem. It is just nature. And we have no more control over nature now or then. If so - try to divert the course of a hurricane or disrupt a tornado. We are powerless. And your little reference is "proof"? Seriously? 
1970 - “…get a good grip on your long johns, cold weather haters – the worst may be yet to come…there’s no relief in sight” – Washington Post
1974 - “Climatological Cassandras are becoming increasingly apprehensive, for the weather aberrations they are studying may be the harbinger of another ice age” –Washington Post
1974 - “As for the present cooling trend a number of leading climatologists have concluded that it is very bad news indeed” – Fortune magazine, who won a Science Writing Award from the American Institute of Physics for its analysis of the danger.

I could give you a 100 references but this article has limits. Don't delude yourself.