ABC National - WOND
Courtesy Angela M. Chalk(NEW ORLEANS) -- As extreme heat takes over the U.S., millions of Americans will be faced with the “urban heat island” effect. The lack of vegetation and shade, as well as an increase in paved surfaces and buildings, is causing temperatures to rise as much as 20 degrees in an urban area compared to surrounding regions. With July poised to be the hottest month in recorded history, the impacts of climate change for the 85% of the U.S. population living in metropolitan areas are already being felt. Residents across the country are taking the dangers of extreme heat int...