While Illinois is accustomed to temperatures well below freezing for extended periods of time, the area of the country that supplies natural gas for many central Illinois towns is not and it’s leading to massive price increases on utility bills. Some schools in central Illinois have been closed all week — first for heavy snow and cold, then because the schools couldn’t afford to properly heat buildings. North Greene school district in White Hall has been closed since Wednesday. In an email published on the school’s website, city officials warned the school its utility bill could be...