greenland glaciers may melt slower than thought
Last Updated : GMT 06:49:16
Arab Today, arab today
Arab Today, arab today
Last Updated : GMT 06:49:16
Arab Today, arab today

Greenland glaciers may melt slower than thought

Arab Today, arab today

Arab Today, arab today Greenland glaciers may melt slower than thought

Washington - AFP

A decade-long study of Greenland's glaciers suggests they may not be melting as quickly as thought, leading to a slower sea-level rise than worst-case predictions, said a study on Thursday. How fast glaciers melt depends in large part on how fast they move, and the research in the journal Science shows the glaciers may lead to a sea level rise of 0.8 meters (2.6 feet) by 2100, not two meters (6.5 feet) as some have estimated previously. Scientists pored over satellite data from Canada, Germany and Japan spanning from 2000 to 2011, and found that Greenland's largest glaciers, which end on land, move rather slowly, between 30 and 325 feet (nine to 100 meters) per year. Glaciers that end in ice shelves move more quickly, from 1,000 feet (305 meters) to a mile (1.6 kilometers) per year. "So far, on average we're seeing about a 30 percent speedup in 10 years," said lead author Twila Moon, a University of Washington doctoral student in earth and space sciences. Fast-moving glaciers release more ice and meltwater into the ocean than slow-moving ones. Since previous estimates of Greenland's glacier melt speed varied widely -- from adding four to 19 inches (10 to 48 centimeters) to the rising sea level by 2100 -- Moon said she embarked on the research get a better grasp on what was actually happening. "We don't have a really good handle on it and we need to have that if we're going to understand the effects of climate change," she said. However, while the study gave researchers a clearer picture of how glaciers currently move and melt at varying speeds, many questions still remain about how that may impact sea-level rise in the decades to come. "There's the caveat that this 10-year time series is too short to really understand long-term behavior," said co-author Ian Howat, an assistant professor of earth sciences at Ohio State University. "So there still may be future events -- tipping points -- that could cause large increases in glacier speed to continue," he added. "Or perhaps some of the big glaciers in the north of Greenland that haven't yet exhibited any changes may begin to speed up, which would greatly increase the rate of sea level rise." The research was funded by the US space agency NASA and the National Science Foundation.

arabstoday
arabstoday

Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

greenland glaciers may melt slower than thought greenland glaciers may melt slower than thought

 



Name *

E-mail *

Comment Title*

Comment *

: Characters Left

Mandatory *

Terms of use

Publishing Terms: Not to offend the author, or to persons or sanctities or attacking religions or divine self. And stay away from sectarian and racial incitement and insults.

I agree with the Terms of Use

Security Code*

greenland glaciers may melt slower than thought greenland glaciers may melt slower than thought

 



GMT 10:52 2017 Wednesday ,18 January

Clocks 'failed' onboard Europe's navigation satellites

GMT 23:15 2017 Sunday ,17 December

Mohamed bin Zayed receives President of Montenegro

GMT 11:54 2017 Sunday ,12 November

Nawaz Sharif holds meeting at Jati Umra

GMT 04:54 2017 Saturday ,14 October

Syrians should decide Assad's fate: UN envoy

GMT 00:13 2017 Thursday ,23 November

President expresses grief over martyrdom of Maj. Ishaq

GMT 10:11 2017 Wednesday ,18 October

Venezuela poll results a 'strong message' to US, allies

GMT 13:20 2017 Sunday ,19 February

Actor Bassam Ali rejects works violating ethics

GMT 13:06 2017 Wednesday ,22 February

Super Rugby has plenty to tackle in 2017

GMT 15:03 2017 Saturday ,11 March

Iraqi forces storm Old Mosul from 3 axis

GMT 15:55 2017 Tuesday ,25 July

Morocco’s coach underlines difficulty

GMT 10:49 2016 Saturday ,03 December

Australia's Maxwell fined for 'disrespectful' teammate

GMT 12:58 2017 Sunday ,27 August

Consumers warned against random abattoirs
Arab Today, arab today
 
 Arab Today Facebook,arab today facebook  Arab Today Twitter,arab today twitter Arab Today Rss,arab today rss  Arab Today Youtube,arab today youtube  Arab Today Youtube,arab today youtube

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

Maintained and developed by Arabs Today Group SAL.
All rights reserved to Arab Today Media Group 2021 ©

arabstoday arabstoday arabstoday arabstoday
arabstoday arabstoday arabstoday
arabstoday
بناية النخيل - رأس النبع _ خلف السفارة الفرنسية _بيروت - لبنان
arabstoday, Arabstoday, Arabstoday