Subscribe free to our newsletters via your
. Earth Science News .

Largest ice mass in California's Yosemite park melting, disappearing
by Staff Writers
Yosemite National Park, Calif. (UPI) Oct 2, 2013

disclaimer: image is for illustration purposes only

The largest ice mass in Yosemite, a glacier that is the California park's key source of water, is melting fast and could be gone in 20 years, scientists say.

Lyell Glacier has shrunk by more than half in the past century and hasn't moved in years, researchers in the park said.

"We give it 20 years or so of existence -- then it'll vanish, leaving behind rocky debris," Greg Stock, the park's first full-time geologist, told the Los Angeles Times.

Climate change has caused the glacier to drop 62 percent of its mass and lose 120 vertical feet of ice in the last 100 years, he said.

Yosemite's other glacier, Maclure, is shrinking but is still moving at a rate of about an inch a day.

Lyell, the second-largest glacier in the Sierra Nevada and the headwater of the Tuolumne River watershed, no longer fits the definition of a glacier because it has ceased moving, Stock said.

"Lyell Glacier is stagnant -- a clear sign it's dying," he said. "Our research indicates it stopped moving about a decade ago.

"Glaciers tend to flow like honey down a plate, or slide over meltwater beneath them," Stock said. "We suspect Lyell just isn't thick enough anymore to drive a downhill motion."

The rate of its retreat has accelerated in the last decade, he said.

"Eventually, there'll be nothing left."


Related Links
Beyond the Ice Age

Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks DiggDigg RedditReddit GoogleGoogle

Memory Foam Mattress Review
Newsletters :: SpaceDaily :: SpaceWar :: TerraDaily :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News

Traces of immense prehistoric ice sheets: the climate history of the Arctic Ocean needs to be rewritten
Bremerhaven, Germany (SPX) Oct 03, 2013
Geologists and geophysicists of the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), discovered traces of large ice sheets from the Pleistocene on a seamount off the north-eastern coast of Russia. These marks confirm for the first time that within the past 800,000 years in the course of ice ages, ice sheets more than a kilometre thick also formed in the Arctic Ocea ... read more

Satellite flood maps reach crisis teams via Internet

US banks $584 mln in Egypt aid for safe-keeping

China launches satellite to monitor natural disaster

Australia and Indonesia hold conciliatory discussions

Bright, laser-based lighting devices

S. Korean steel plant in India could displace 22,000, says UN

New sensor could prolong the lifespan of high-temperature engines

Paradigm shift: Need something in space? Print it, don't ship it

Scientists warn of 'deadly trio' risk to ailing oceans

Dams provide resilience to Columbia from climate change impacts

South Atlantic fish resources at risk from warmer climate

Pacific's Palau mulls drone patrols to monitor waters

Largest ice mass in California's Yosemite park melting, disappearing

Europe's top court rejects Inuit appeal against seal fur ban

Traces of immense prehistoric ice sheets: the climate history of the Arctic Ocean needs to be rewritten

Warming hits Greenland's caribou

Understanding soil nitrogen management using synchrotron technology

Protecting the weedy and wild kin of globally important crops

Hotpots and snake blood: Asia's libido-boosting foods

Farmers need help to plow through new food safety regulations

Pakistan quake death toll rises to 376

Disaster officials warn New Orleans, Gulf coast over storm Karen

Five dead as Typhoon Wutip batters Vietnam

Tropical Storm Jerry forms in Atlantic

Nigeria bombs Boko Haram 'camp' near site of massacre

Canada reinforces African Union forces in Somalia

Disgruntled Malian troops fire weapons, kidnap officer

Ugandan officers court-martialed over alleged coup plot

Einstein's genius put down to 'well-connected' brain halves

Roma families face wholesale expulsion from France

Genetic study pushes back timeline for first significant human population expansion

Your brain digitally remastered for clarity of thought

The content herein, unless otherwise known to be public domain, are Copyright 1995-2014 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement