How 'corn sweat' is making a Midwest heat wave even worse

GREEN BAY, Wis. (WFRV) – Excessive heat warnings are in place across the Midwest Tuesday amid high temperatures and humidity, a combination made even worse by a phenomenon known as "corn sweat."Corn sweat makes the already humid Midwest summer feel even worse when the plant releases groundwater back into the atmosphere, University of Wisconsin Extension crops and soils outreach specialist Chris Clark told Nexstar's WFRV."Corn sweat is called evapotranspiration or just transpiration," expla