It's easy to forget, given this morning's fine weather, but last week at this time we were sweltering in a thick heat. The miserable weather was in part caused by high dew points. That means there was a high amount of water vapor in the air. Some climatologists have noticed dew points in Minnesota may be on the rise... and if that true, one reason could be our corn fields. Dr. Jeff Basara (ba SAIR --rhymes with bear -- ah) is a scientist at Oklahoma's State Climate Office. He's studied the connection between crops and dew point that's Dr. Jeff Basara (ba SAIR --rhymes with bear -- ah), a scientist at Oklahoma's State Climate Office.