2015-05-14. NASA Study Shows Antarctica’s Larsen B Ice Shelf Nearing Its Final Act.

posted May 16, 2015, 12:10 PM by Alan Gould
NASA Release 15-092. For GSS Climate Change chapter 8. Excerpt: A new NASA study finds the last remaining section of Antarctica's Larsen B Ice Shelf, which partially collapsed in 2002, is quickly weakening and likely to disintegrate completely before the end of the decade. A team led by Ala Khazendar of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, found the remnant of the Larsen B Ice Shelf is flowing faster, becoming increasingly fragmented and developing large cracks. ..."These are warning signs that the remnant is disintegrating," Khazendar said. "...This ice shelf has existed for at least 10,000 years, and soon it will be gone." ...Ice shelves are the gatekeepers for glaciers flowing from Antarctica toward the ocean. Without them, glacial ice enters the ocean faster and accelerates the pace of global sea level rise. This study, the first to look comprehensively at the health of the Larsen B remnant and the glaciers that flow into it, has been published online in the journal Earth and Planetary Science Letters. ...NASA research has found that the last section of Antarctica's Larsen B Ice Shelf is likely to disintegrate before the end of the decade.... http://www.nasa.gov/press-release/nasa-study-shows-antarctica-s-larsen-b-ice-shelf-nearing-its-final-act