Cold & Snowy: Is it Global Warming’s Fault?

December 21st, 2008 by Roy W. Spencer, Ph. D.

No matter what weather event happens these days, someone is bound to blame it on manmade global warming. Snow in Las Vegas and Los Angeles, early cold across the U.S….anything and everything is now evidence that humans have screwed up the weather. Thom Hartmann on Air America recently used some convoluted logic to explain how global warming causes more cold and snow.

The truth is that unusual weather has always been…well…normal. It is perfectly normal for records to be set for cold, heat, rain, drought, etc. Since most locations have records extending back less than 100 years, it can be expected that they will, on occasion, experience some weather event that they had not experienced before.

So, how do climate experts know that unusual weather now is a sign of global warming? They don’t. And when someone blames unusual COLD on global warming, you can bet that they have always had a little trouble in the critical thinking department.

And the news keeps getting even crazier. Now researchers have concluded that manmade global warming actually started 5,000 to 8,000 years ago. How can we trust them? Because they used “powerful supercomputers and advanced climate models”. Well, gee, that’s good enough for me.

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