Glacier retreating: Ted Scambos, lead scientist at the U.S. National Snow and Ice Data Center, noted that this calving event marks a retreat of the Petermann Glacier ???farther back than historical calving fronts.

More Ice Breaks off of Petermann Glacier, Greennland
via earthobservatory.nasa.gov Glacier retreating: Ted Scambos, lead scientist at the U.S. National Snow and Ice Data Center, noted that this calving event marks a retreat of the Petermann Glacier ???farther back than historical calving fronts.