'Heat days' become more common for sweaty schools

Monday, September 2, 2013 | 2:51 p.m. CDT; updated 9:05 p.m. CDT, Monday, September 2, 2013

CHICAGO — When city students arrived for the first day of school under the blazing temperatures of a Midwest heat wave, staff greeted them with some unusual school supplies: water bottles, fans and wet towels to drape around their necks.