Researchers have found that the East Antarctic ice sheet melted in at least one region about three million years ago, when climate conditions were similar to where global warming seems to be taking us.
Fluctuations in ice melting over time in Greenland may mean that the trajectory towards a complete melt is less direct than previously thought. New research suggests that future sea level rise predictions should be made cautiously.
Lake Vostok has been capped with Antarctic ice for at least 15 million years. Now scientists have drilled 13,000 feet to reach its surface. They'll soon learn what life forms have adapted to that cold, dark locale.