How to prepare your home for summer heat waves

Every year, an estimated 600 people in the U.S. die in extreme heat waves. Nearly 10,000 are hospitalized and more than 67,000 visit emergency rooms. This year, record-smashing heat waves have swept across the southwestern United States, which has sweltered under temperatures above 100 degrees for weeks. In July, excessive heat warnings were announced for many western U.S. states, Texas and some of Florida.