Horrific Hurricanes

Horrific Hurricanes

How do hurricanes form? How do we predict their paths? How can we improve predictions? More »

Tsunami: The killer wave

Tsunami: The killer wave

Could an offshore earthquake start a deadly tsunami, as in Sumatra and Japan? Where do tsunamis get their power? How do warning systems work? More »

A climate of extremes?

A climate of extremes?

Are extreme heat, wicked cyclones and record rainfalls signs of climate change, or just more changes in the weather? Will warming eliminate record cold days? Will hurricanes get bigger? More »

Shock and aftershock in Haiti

Shock and aftershock in Haiti
Aftershocks and triggered earthquakes both follow a large earthquake, and they don’t happen at random. Can lessons about the sequence and timing of quakes improve safety? More »

Earthquake safety: It begins at home

Earthquake safety: It begins at home

Construction matters. Hundreds of millions live and work in houses and schools that will collapse in the next earthquake. Chile and California prove that smart engineering saves lives. More »

Shark Dangers: How Overblown?

New shark repellent tested. How common are shark attacks? Meet the social shark. Learn why some people are fascinated by this cold-blooded killer, and why you should not be too scared. More »

Tornadoes: Power & Fury

Darlene Young reacts to the devastation around her house in Pierce City, Mo., Monday, May 5, 2003, the day after the town was hit by a tornado. Young says her house was spared destruction by a church next to it that took the brunt of the winds. (AP Photo/John S. Stewart)

Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy? More »

Ice in Antarctica

West Antarctic Ice Sheet may be thickening, which could reduce the rise in sea level caused by global warming. More »

Potato Peril? Irish Blight Returns

Fungus that caused Irish potato famine is back, threatening potato crops around the world. How did the blight change world history, and what is being done to prevent another blight? More »

Shipwreck Mystery on Lake Superior

The Edmund Fitzgerald went down in 1975 with barely a trace, and no warning call whatsoever. New evidence pins the blame on terrible weather. More »

Floods: The Human Role

Flooding. We call it a natural disaster. But humans have a role. How do people promote flooding by cutting trees, draining wetlands, paving parking lots and otherwise interfering with nature? More »

Asteroid Threat

How bad is the asteroid threat to Earth, and what are they doing to find any killer asteroids out there? Read the delightful debate between the no-problem and the killer-asteroid schools of thought. More »