NASA: 10,000-year-old ice shelf to disappear by 2020 [2015/06/04 15:23]

A massive 10,000-year-old *Antarctic *ice shelf will most likely *disintegrate completely by 2020 due to global warming, a NASA study predicted.

According to CNN and other foreign news services, a team led by Ala Khazendar of NASA’s Jet *Propulsion Laboratory found evidence of the ice shelf known as Larsen B becoming more *fragmented.

In the winter of 2002, Larsen B *collapsed *catastrophically. Over six weeks, about 3,170 square kilometers of the shelf *broke off and slid into the ocean.

NASA said it had “never witnessed such a large area disintegrate so rapidly.”

Scientists believe *abnormally hot summers caused the ice shelf’s breakdown.

Larsen B kept decreasing rapidly from 11,512 square kilometers in January 1995 to 6,634 square kilometers in February in 2002 to 3,464 square kilometers in March, 2002.

The shelf measures 1,600 square kilometers, about one-seventh of its size 20 years ago. By the end of the *decade, it’s likely to be history.
Ice shelves act like *buttresses for *glaciers, *slowing their slide into the ocean. Without ice shelves, more and more glacial ice will enter the water and *speed the rise of sea levels.

“This ice shelf has existed for at least 10,000 years, and soon it will be gone. It’s bad news for our planet.”
출처: 주니어 영자신문 주니어헤럴드(junior.heraldm.com)