Hurricanes Hide This Threat To Your Lungs

Now Playing

Hurricanes Hide This Threat To Your Lungs

Next Up

From Tornadoes To Floods: April's Severe Weather Siege

What Bee Crisis Means For Your Grocery Bills

What To Know About Pine Tree Pollen And Allergies

This Is What Lizards Get Right About Spring

How Real Is Tsunami Threat In 'The White Lotus'?

Falling Tree Creates Pollen Storm

The Great Oklahoma Trampoline Escape

Watch: Cruise Ship Battered By Drake Passage Waves

Why This Lake Won’t Have Public Access For Years

If A Cow Lies Down, Is It Going To Rain?

Dino Prints Found On Both Sides Of Atlantic

Hurricanes Actually Help Endangered Butterfly

Drone Captures Tornado-Splintered Homes

Faces Of A Disaster: The Tornado Survivors

Tornado Rampages Through Louisville

'Somebody Is Losing Everything'

Bizarre Scene Following Powerful Tornado

New Look: Major Tornado Damage In Multiple States

Widespread Tornado Devastation In Arkansas Town

The Science Behind Tornado Formation

Why No Two Tornadoes Are Ever The Same

Storms Cause Damage Across South, Midwest

Tornado Watch Vs. A Warning: What To Know

Roads Covered As Memphis Flooding Begins