Antarctic Ice Shelf Is A Few Years From Disintegration: NASA

LARSEN B ICE SHELF

By Alex Dobuzinskis

LOS ANGELES (Reuters) – The last intact section of one of Antarctica’s mammoth ice shelves is weakening fast and will likely disintegrate completely in the next few years, contributing further to rising sea levels, according to a NASA study released on Thursday.

The research focused on a remnant of the so-called Larsen B Ice Shelf, which has existed for at least 10,000 years but partially collapsed in 2002. What is left covers about 625 square miles (1,600 square km), about half the size of Rhode Island.

Antarctica has dozens of ice shelves – massive, glacier-fed floating platforms of ice that hang over the sea at the edge of the continent’s coast line. The largest is roughly the size of France.

Larsen B is located in the Antarctic Peninsula, which extends toward the southern tip of South America and is one of two principal areas of the continent where scientists have documented the thinning of such ice formations.

“This study of the Antarctic Peninsula glaciers provides insights about how ice shelves farther south, which hold much more land ice, will react to a warming climate,” said Eric Rignot, co-author of the study and a glaciologist at NASA’s Jet Propulsion Laboratory in Pasadena, California.

Almost 200 countries have agreed to negotiate a United Nations pact by the end of 2015 to combat global climate change, which most scientists expect will bring about more flooding, droughts, heat waves and higher seas.

The U.N. Intergovernmental Panel on Climate Change has cited a probability of at least 95 percent that accelerated warming of the planet has been triggered by human activities, led by atmospheric emissions of greenhouse gases from the burning of fossil fuels.

The study, published online in the journal Earth and Planetary Science Letters, was based on airborne surveys and radar data.

The study’s lead scientist, Ala Khazendar, said analysis of the data reveals that a widening rift in Larsen B will eventually break it apart completely, probably around the year 2020.

Once that happens, glaciers held in place by the ice shelf will slip into the ocean at a faster rate and contribute to rising sea levels, scientists say.

The study also found Leppard and Flask, two main tributary glaciers of the ice shelf, have thinned by between 65 and 72 feet (20 to 22 meters) in recent years, and the pace of their shrinking has accelerated since the immediate aftermath of the 2002 partial collapse of the ice shelf.

(Reporting by Alex Dobuzinskis; Editing by Steve Gorman and Lisa Shumaker)

About steve@bayintegratedmarketing.com

Steve Ulrich is a principal at Bay Integrated Marketing: www.bayintegratedmarketing.com. I have been working with people to maximize their use of social media and internet publishing, optimize their websites to turn prospects into customers, and establish their personal brand on the internet. We are also working with Eco Distribution, Inc. to find and implement practical solutions to help clean up our air and the environment. Eco Distribution, Inc. is a California based Distributor and Representative Firm dealing in environmentally friendly and Green solutions. We have leveraged 30 years experience in responsible construction management to provide solutions for some of the most impactful challenges facing our air, water, and land. We have an oil/hydrocarbon remediation system that is effective on everything from simple oil stains on a driveway, to complex oil disasters in the ocean. My approach to social media and internet marketing is simple. Instead of spending a fortune “buying” keywords and ads that don’t return anything we concentrate on three areas: I CAN GET YOU FOUND ON LINKEDIN - NUMBER ONE, PAGE ONE.
This entry was posted in Air Quality, Carbon footprint, Clean Air, Clean Coal, Earth Day, Environment, Green, Honesty, Marketing, Uncategorized and tagged , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s