 So that is the sound of my AC unit clicking on, which it does like a million times each summer where I live here in Phoenix. And for the record, I am not as brave as Chris George. This city has been breaking all kinds of heat records of late, 31 straight days over 110 degrees, more than 640 people dead from heat exposure last year. Now, George is thoughtful about this. He knows it is a privilege to choose to go without cool air.