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Xinhua News Agency


  Home > Xinhua News Agency


Global Efforts Needed To Save World's Largest Ice Sheet From Climate Change: Report


 


 August 11th, 2022  |  11:25 AM  |   241 views

CANBERRA

 

 "Clock is ticking" to protect the East Antarctic Ice Sheet (EAIS) from global warming, a research has warned.

 

In a study published on Thursday, a team of international climate scientists including researchers from the Australian National University (ANU) in Canberra examined how much global sea levels could rise if the EAIS melts.

 

They said that if global warming is limited below two degrees Celsius above pre-industrial levels, the EAIS, the world's largest ice sheet, is predicted to cause sea levels to rise by less than half a meter by the year 2500.

 

However, if the targets aren't met and temperatures continue to rise, the study warned sea levels could rise by five meters from the EAIS alone in the same time period.

 

"The EAIS is 10 times larger than West Antarctica and contains the equivalent of 52 meters of sea level," Nerilie Abram, co-author of the study from the ANU Research School of Earth Sciences, said in a media release.

 

"If temperatures rise above two degrees Celsius beyond 2100, sustained by high greenhouse gas emissions, then East Antarctica alone could contribute around one to three meters to rising sea levels by 2300 and around two to five meters by 2500."

 

Abram said the window of opportunity to shield the world's largest ice sheet from the impacts of climate change "is quickly closing", and a key lesson from the past is that the EAIS is highly sensitive to even relatively modest warming scenarios.

 

According to the researchers, they examined how the EAIS responded to warm periods in Earth's past and analysed projections made by existing studies in order to determine the impact of varying levels of future greenhouse gas emissions on the ice sheet by the years 2100, 2300 and 2500.

 

"The worst effects of global warming on the world's largest ice sheet could be avoided if nations around the world succeed in meeting climate targets outlined in the Paris Agreement," researchers said in the media release.

 

Study co-author Matt King from the University of Tasmania said the study highlights "how much work is needed" to find out more about East Antarctica.

 

"We understand the Moon better than East Antarctica. So, we don't yet fully understand the climate risks that will emerge from this area," King said.

 


 

Source:
courtesy of XINHUA NEWS AGENCY

by XINHUA NEWS AGENCY

 

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