prices and summer is just beginning. if you think your air conditioning bill is high now, imagine if this solar flare does what the last one did a few years back and messes with our utility grid. just say, not cool. which is why we are hot on this story and all over this. with mike from chicago. and over in phoenix and sandra in new york at a balmy 95 degrees today. and sandra? >>reporter: it is a hot one, and, in fact, because of the air conditioning demand, natural gas prices hitting a 10-month high today as the heat wave spreads across the country and much is turning up the air conditioning, so, all this driving up prices. natural gas prices since may 20th, laid may, prices have skyrocketed 14 percent. power plants are reporting