Floods under Antarctic ice speed glaciers into sea: Study

Scientists unveiled on Sunday the first direct evidence that massive floods deep below Antarctica's ice cover are accelerating the flow of glaciers into the sea.

How quickly these huge bodies of ice slide off the Antarctic and Greenland land masses into the ocean help determine the speed at which sea levels rise.

The stakes are enormous: An increase measured in tens of centimeters could wreak havoc for hundreds of millions of people living in low-lying deltas and island nations around the world.