Bookmark Kaumudi Online  Bookmark this site  Editor@Kaumudi  |  Marketing  Print Advt rates  |  Calendar 2018        Go!    
March 22, Thursday 2018 2:02 AM       

       HEADLINES: Anju Bobby George, P T Usha, Malleswari told to resign as national observers                                              Hyderabad Uty among 62 universities, colleges to get autonomy boost                                              Jayalalithaa refused to visit hospital, says Sasikala                                              Former diplomat says China's presence increasing in neighbouring countries                                              Kabul blast: Death toll rises to 29                                              T20 Tri-Nation: Rajeshwari Gayakwad to replace injured Ekta Bisht                                              Now, cricket to promote road safety campaign                                              Rain helps Windies qualify for 2019 World Cup                                              Kaumudi Facebook
       SCI&TECH Next Article: 'Flying taxis' could be a thing by 2020  
       Greenland Ice sheet could be losing mass, says study
         Posted on :18:26:48 Nov 10, 2017
       Last edited on:18:26:48 Nov 10, 2017
         Tags: Greenland Ice sheet could be losing mass, say

WASHINGTON DC: A new study shows that global warming has reduced the mass of the Cordilleran Ice Sheet by half in as little as 500 years, indicating the Greenland Ice Sheet could face a similar fate.

A previous research had estimated that the Cordilleran Ice sheet covered much of western Canada as late as 12,500 years ago, but new data shows that large areas in the region were ice-free as early as 1,500 years earlier. This confirms that once ice sheets start to melt, they can do so very quickly.

Since, the Cordilleran Ice Sheet was similar in mass to the Greenland Ice Sheet, the researchers predict that the latter might have a fate similar to that of the former.

The melting of the Cordilleran Ice Sheet likely caused about 20 feet of sea level rise disrupting the "global conveyor belt" of ocean circulation and changing climate.

To conduct this study, researchers mapped and dated moraines (ridges along a glacier) throughout western Canada using beryllium-10.

A professor of physics in Purdue's College of Science, Marc Caffee said, "We have one group of beryllium-10 measurements, which is 14,000 years old, and another group, which is 11,500 years old, and the difference in these ages is statistically significant. The only way this would happen is if the ice in that area had completely gone away."

Around 14,000 years ago the Earth started warming, which led to melting of ice caps and thinning of ice sheets. About a thousand years later, the climate cooled again, and the glaciers that were melting started to advance. If the Cordilleran Ice Sheet had still been there when the climate started cooling then it would have been around now as well. This indicates a rapid disappearance rather than a gradual melting of the ice sheet.

"Continental ice sheets don't disappear in a simple, monolithic way - it's an extremely complicated process. The more we know about the retreat of the Cordilleran Ice Sheet, the better we'll be able to predict what's to come for the Greenland Ice Sheet," Caffee added.

This research was conducted in Purdue University's PRIME Lab.

Next Article: 'Flying taxis' could be a thing by 2020
Here is how you can travel smart using these apps!  
5 most important aspects of our lives driven by technology  
This telehealth program offers hope for diabetics  
New habitable planet found near our solar system  
Going light with the new Light Phone 2  
What will happen to this beautiful blue planet?  
Liver cancer: New method identifies splicing biomarkers  
Astronomers reveal secrets of most distant supernova ever detected  
Ensuring sexual, reproductive health for overall well-being  
WeChat gets popular in Bhutan: report  
Celebrate love this Valentine's Day with Google Pixel 2  
This drug could reverse alcohol's damaging effects on brain  
Scientists discover enormous reserves of mercury in permafrost  
Google Assistant helps you set music alarms  
What is epilepsy?  
Here're some ways to keep dementia at bay  
What are memories made of?  
Second-hand plastic toys could harm your kid  
Working before and after stroke is good for brain health  
ixigo introduces India's first augmented reality feature for Train Passengers  
Super blue moon on Jan. 31 will mark last of trilogy  
Now, a blood test that can screen eight cancer types  
Secret of longevity protein revealed!  
Absence of this gene can give men deadly cancer  
Soon, you can demote group admins on WhatsApp  
Can there be conspiracy behind the move to shift India-West Indies one-day cricket match from Thiruvananthapuram to Kochi?
No opinion
Home Kerala India World Business Sports Sci&Tech Education Automobile CityNews Movies Environment Letters 
© Copyright keralakaumudi Online 2011  |  Reproduction in whole or in part without written permission is prohibited.
Head Office Address: Kaumudi Buildings, Pettah P.O, Trivandrum - 695024, India.
Online queries talk to Deepu Sasidharan, + 91 98472 38959 or Email deepu[at]
Customer Service -Advertisement Disclaimer Statement   |  Copyright Policy