Saturday, May 25, 2013

Is climate change making tornadoes more frequent?

The recent horrific deaths due to an F5 tornado was followed by the usual comments by commentators linking the tornado to climate change.  The assumption is that climate change will make tornadoes more common and this one was viewed as evidence.

In this case, however, the climate change believers have it wrong.  The data below shows the data for tornadoes according to the National Weather Service.  There does not appear to have been any significant uptick.


The data for F3+ storms is even less corroborative.


There is a lot of evidence that the world is heating up.  You can go to the interactive map feature at climate.gov here and see the details.  It'll show that the earth has been heating up; that carbon dioxide levels have been rising; that sea levels have been rising; that glaciers are shrinking and ocean heat has been going up.  Really, the evidence is pretty overwhelming.  So, we really don't have to make up stuff.  The fact is that there is no evidence that tornadoes are getting any more frequent in the US or any stronger.

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