The waning is happening on the Larsen B ice shelf, one of three shelves that make up the Larsen Ice Shelf.

CNN: Satellite documents thinning ice shelf

The agency's Envisat satellite shows part of the Larsen Ice Shelf, which lies on a peninsula south of Chile, has decreased from 3, 463 square kilometers (1, 337 square miles) in March 2002 to 1, 670 square kilometers (645 square miles) today, a change the European Space Agency blames on warmer temperatures.

CNN: Satellite documents thinning ice shelf

Larsen B, a 1, 254-square-mile ice shelf, comparable in size to the U.S. state of Rhode Island, collapsed in 2002, the group said.

CNN: Massive ice shelf on verge of breakup