Remotely operated aircraft successfully tested as tool for measuring changes in polar ice sheets

Scientists studying the behavior of the world's ice sheets--and the future implications of ice sheet behavior for global sea-level rise--may soon have a new airborne tool that will allow radar measurements that previously would have been prohibitively expensive or difficult to carry out with manned aircraft.

Polar ice sheets shrinking ever faster

The planet's two largest ice sheets are melting faster then ever before - three times as fast as they were just 20 years ago.