July 4th marked the hottest day ever recorded, as intense heat continues across U.S.
Earth reaches hottest day ever recorded 4 days in a row | GMA
How zoos in the hottest parts of the country keep animals healthy during extreme heat
55 million Americans under heat alerts as hottest weather of the season spreads east
'The Asteroid Hunter' unpacks the details of a rare asteroid heading towards Earth
'The Asteroid Hunter' unpacks the details of a rare asteroid heading towards Earth
Last 16 days on planet have been hottest on record
Extreme heat threatens Florida's reef, continental US's only coral reef system | Nightline
Robot mimics human reactions to extreme heat | GMA
Pennsylvania flooding turns deadly, while extreme heat grips West and south l GMA
