Why this extreme cold is just weather but all heat waves are climate change

There is a deep asymmetry in science. Don’t take it from me, take it from the former President of American Meteorological Society (AMS) and a current Director of the University of Georgia’s (UGA) Atmospheric Sciences Program. Marshall Sheppard would know, he has written over “80 peer reviewed papers” which gives him secret weather knowledge. It’s a kind of smarts that people who analyze MRI scans, design aerofoils or find minerals 3,000m underground can only aspire to.

He’s worried that people are mocking climate change, just because snap-frozen sharks are washing up on the beach, and it’s hitting minus 50C in Canada.  Mankind has put out more than a third of all the CO2 homo sapiens has ever made,  but the last time it was this cold was, like 1917.

So to help train believers Marshall Sheppard has written a handy retort to skeptical cynics:

Step One: It’s only cold where you are:

So global weather is hills and valleys. You are in a valley, but the crest of the wave is coming (or something like that).

Near surface temperatures on December 28th as generated by the Climate Reanalyzer online software tool

The neat-o graph covers a whole 24 hour […]

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January 1, 2018 at 12:45PM

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