Global Warming vs Global Cooling Hysteria Of The Past

Here's a tale of two global climate theories and hysteria. This story blames the present freeze on GLOBAL WARMING!!! 

http://news.yahoo.com/global-warming-freezing-104500272--politics.html 

But contrast THAT to this story: http://www.populartechnology.net/2013/02/the-1970s-global-cooling-alarmism.html