Quad-City Times: A report released today by Environment Iowa showed that Iowa corn growers lose $259 million a year because of global warming. The annual loss to Iowa farmers tops all 50 states. Illinois is a close second, with a $243 million annual loss to its corn crop, according to the report. The loss is based on lower yields caused by a two degree increase in average temperature, Julian Boggs, Environment Iowa field associate, said at a news conference in Davenport. His group would …