Summer days where temperatures routinely reach 105 to 112 degrees. Dried up lakes and rivers. Cracked infrastructure. Heat waves lasting two weeks or more.

That's the scenario offered up by Purdue University researchers. They say it could happen by the end of the century if man-caused global warming continues, according to the Associated Press.

The predicted changes are large enough to disrupt the U.S. economy. The study targets the 2071 to 2085 time period and assumes the temperatures and rainfall would change gradually before then.

It's a comprehensive study but it's not the last word on the regional effects of global warming. Researchers relied on global and regional computer models to forecast the climate changes.

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