Coshocton Tribune: Corn likes it cool. That’s the message a group of concerned officials and representatives with Environment Ohio were delivering at a press conference Thursday morning at Paul’s Farm Market on Ohio 60. “Global warming is raising temperatures in Ohio and across the nation,” said Katy Kiefer, a field organizer with Environment Ohio. “Hotter fields will mean lower yields for corn, and eventually, the rest of agriculture.” Kiefer said a new report on Ohio’s corn shows that …