Our Understanding of Ice Streams
A new study of the ancient Laurentide Ice Sheet suggests that Greenland and Antarctic ice sheets may not accelerate as quickly as previously thought.
Ice Sheet
Global Warming: the Archaeological Frontier
Melting glaciers yield evidence on new theories of Asian migration to the Americas. Underwater robots search the sea bottom, looking for more.
Long Nights and Thin Ice: A Penguin's Tale
A conversation with penguin expert Grant Ballard on the short-term wins and long-term losses facing one of the world's most charismatic animals.
Ice Capades At the Ends of the Earth
A mile-and-a-half-long ice cube tells a story about Earth's climate.
Measuring the Melting Arctic Sea Ice
A new satellite will measure to the centimeter just how far gone, or going, the Arctic ice cap really is.
There's No Negotiating With Nature
Two new studies show that the effects of changing climate are with us regardless of where governments or public opinion stand.
Opening Northern Sea Lanes May Melt Arctic Ice Faster
Sailing from the Atlantic to the Orient across the roof of the world has been the dream of Arctic explorers and world traders for centuries. It saves fuel, too, so what's not to like? Well ...
Space Probe to Measure How Sloshed Mother Earth Is
A European satellite scheduled to launch today will provide hard data on rising seas.
Core of the Problem
The National Ice Core Laboratory tries to answer one question: As the Earth warms, will sea levels rise three feet? Or 30? Or even more?