University of Iowa professors Peter Thorne and Jerry Schnoor tell the world that Iowa will get a lot more 90 degree days in the future as a result of Iowa residents emitting CO2.

(67) Rob Hogg on Twitter: “Univ. of Iowa professors Peter Thorne and Jerry Schnoor 

All evidence shows the exact opposite.  Average daily maximum temperatures in Iowa have plummeted over the past century.

The frequency of 90 degree days has plummeted in Iowa over the past century.

As CO2 levels have increased, the frequency of 90 degree days has plummeted.

Peak temperatures in Iowa have plummeted.

The number of 100 degree temperature readings in Iowa has plummeted.

 Iowa’s worst heatwave occurred in 1936, when Logan had 41 days over 100 degrees from June 16 to September 6.

14 Jul 1936, Page 1 – The Des Moines Register at Newspapers.com

08 Jul 1936, 10 – The Daily Times at Newspapers.com

13 Jul 1936, 9 – The Gazette at Newspapers.com

Professors  Peter Thorne and Jerry Schnoor are simply making numbers up.  There is no evidence to back up their claims, and it is absurd to suggest that Iowan’s can control atmospheric CO2 levels – as China and India build hundreds of new coal fired power plants.

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