The changes we are seeing are probably a good indicator of the changing climatic conditions there.

As it turns out if you can measure changes in distance between the two satellites, you can get information about what's underneath and what's causing those changes. And you can get information when you fly over the ice sheet about the mass change of the ice sheet.

The ice sheet is losing mass at a significant rate. It's a good indicator of how the climate is changing. It tells us we have to pay attention.

It is the first time we can say that if you look at the entire ice sheet, it is losing mass.

Because ice sheets are a large source of uncertainties in projections of sea level change, this represents a very important step toward more accurate prediction.

Antarctica is Earth's largest reservoir of fresh water.