Sizzling sidewalks, unshaded playgrounds pose risk of burns

PHOENIX, Arizona - Ron Falk lost his right leg, had extensive skin grafting on the left one and is still recovering a year after collapsing on the searing asphalt outside a Phoenix convenience store where he stopped for a cold soda during a heat wave.

Now using a wheelchair, the 62-year-old lost his job and his home. He's recovering at a medical respite center for patients with no other place to go; there he gets