Now Playing
Are Nuts,Fruits,Dairy Exacerbating Allergies? 00:41 Next Up
84% of World's Coral Reefs In Crisis 00:48
These Cities Ranked Best For Air Quality 00:43
Vacation Spots To Minimize Seasonal Allergies 00:45
See The Stunning Discovery On A Sunken WWII Ship 01:00
Lake Michigan Homes On Edge As Erosion Creeps 00:42
‘Good News’ As New Jersey Wildfire Rages On 00:50
10 Worst US Cities For Air Pollution 01:04
New Jersey Wildfire Explodes,Shuts Down Highway 00:40
When Was The Last Quiet Hurricane Season? 00:37
Species Returns From Brink Of Extinction 00:27
These Outdoor Venues Are Most Tornado-Prone 00:46
Water Swamps Dozens Of New Orleans Streets 00:25
Watch:Huge Dust Devil Spins Across Arizona Desert 00:24
No Known Cause For Delta Flight Fire Yet 00:23
Happy Earth Day! Here's Why We Celebrate 00:46
Watch:Snowboarder Rescued After Falling Into Water Cavern 00:30
Home Shredded After Missouri Storms 00:25
Deadly Storms Slam Oklahoma,Texas,Missouri 00:42
Rescue Training Gone Wrong In Peru 00:34
Dangerous Night Of Storms,Tornadoes In North Texas 00:27
New Lego Factory To Run On Clean Energy 00:51
Spinning Inferno ‘Firenado’ Erupts In Iowa 00:29
The Great Ladybug Invasion And Its Impact 00:38
Baseball-Sized Hail Blasts Hotel 00:33
