Featured Research

from universities, journals, and other organizations

Retreating glaciers threaten water supplies

Date:
January 12, 2012
Source:
McGill University
Summary:
Glaciers are retreating at an unexpectedly fast rate according to research done in Peru's Cordillera Blanca. This may threaten water supplies.

Glaciers are retreating at an unexpectedly fast rate according to research done in Peru's Cordillera Blanca by McGill doctoral student Michel Baraer. They are currently shrinking by about one per cent a year, and that percentage is increasing steadily, according to his calculations.

But despite this accelerated glacial shrinking, for the first time, the volume of water draining from the glacier into the Rio Santa in Northern Peru has started to decrease significantly. Baraer, and collaborators Prof. Bryan Mark, at the Ohio State University, and Prof. Jeffrey McKenzie, at McGill, calculate that water levels during the dry season could decrease by as much as 30 percent lower than they are currently. "When a glacier starts to retreat, at some point you reach a plateau and from this point onwards, you have a decrease in the discharge of meltwater from the glacier," explained Baraer.

"Where scientists once believed that they had 10 to 20 years to adapt to reduced runoff, that time is now up," said Baraer. "For almost all the watersheds we have studied, we have good evidence that we have passed peak water." This means that the millions of people in the region who depend on the water for electricity, agriculture and drinking water could soon face serious problems because of reduced water supplies.


Story Source:

The above story is based on materials provided by McGill University. Note: Materials may be edited for content and length.


Cite This Page:

McGill University. "Retreating glaciers threaten water supplies." ScienceDaily. ScienceDaily, 12 January 2012. <www.sciencedaily.com/releases/2011/12/111220102528.htm>.
McGill University. (2012, January 12). Retreating glaciers threaten water supplies. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2011/12/111220102528.htm
McGill University. "Retreating glaciers threaten water supplies." ScienceDaily. www.sciencedaily.com/releases/2011/12/111220102528.htm (accessed April 20, 2014).

Share This



More Earth & Climate News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drought Concerns May Hurt Lake Tourism

Drought Concerns May Hurt Lake Tourism

AP (Apr. 18, 2014) Operators of recreational businesses on western reservoirs worry that ongoing drought concerns will keep boaters and other visitors from flocking to the popular summer attractions. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Ark. Man Finds 6-Carat Diamond At State Park

Ark. Man Finds 6-Carat Diamond At State Park

Newsy (Apr. 18, 2014) An Arkansas man has found a nearly 6.2-carat diamond, which he dubbed "The Limitless Diamond," at the Crater of Diamonds State Park. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins