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Home Featured

Antarctica’s giant ‘Doomsday glacier’ at risk of collapse posing grave risk to world – World News

by FameLIV
December 14, 2021
in Featured
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Antarctica’s giant ‘Doomsday glacier’ at risk of collapse posing grave risk to world – World News
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The Thwaites Glacier is the dimensions of Britain and is already dumping 50 billion tonnes of ice into the ocean annually – it may final ‘only a few extra years’ with its untimely collapse resulting from world warming threatening to lift the peak of the oceans by 65cm

Thwaites Glacier's outer edge
Thwaites Glacier’s periphery (

Picture: NASA / SWNS)

Antarctica’s huge Thwaites Glacier, referred to as the ‘Doomsday glacier’ as a result of grave threat its melting poses, is “retreating quickly” as a result of worsening local weather disaster, scientists have warned.

The glacier, which flows into the Amundsen sea off western Antarctica, is across the measurement of Britain, or Florida, and its melting already contributes 4 per cent to annual world sea degree rises.

Scientists have mentioned it’s now at severe threat of collapse, suggesting it may final “only a few extra years” because the warming ocean waters are slowly erasing the glacier’s ice from beneath.

They are saying a floating part on the entrance of Thwaites Glacier that till now has been comparatively steady may “shatter like a automotive windscreen”.







Ice soften on the grounding line contributes to seawater and sea ranges, however the bigger impact is to ship extra ice above it out into the water, the place it additionally drives up sea degree
(

Picture:

NASA / SWNS)

US and UK researchers say it’s already dumping 50 billion tonnes of ice into the ocean annually.

That is having restricted affect on world sea-levels right now, however there may be ample ice held upstream within the glacier’s drainage basin to lift the peak of the oceans by 65cm – had been all of it to soften.

Such a “doomsday” state of affairs was regarded as unlikely to come back about for a lot of centuries, however the research staff says Thwaites is now responding to a warming world in actually fairly speedy methods.







The glacier in West Antarctica covers 182,000 sq. kilometres
(

Picture:

PA)

“There’s going to be dramatic change within the entrance of the glacier, in all probability in lower than a decade. Each revealed and unpublished research level in that route,” mentioned glaciologist Prof Ted Scambos, US lead coordinator for the Worldwide Thwaites Glacier Collaboration (ITGC).

“This may speed up the tempo (of Thwaites) and widen, successfully, the damaging a part of the glacier.”

On the different finish of the globe, a temperature of 38C in Siberia throughout a heatwave in the summertime of 2020 has been recognised as a report for the Arctic, specialists mentioned.


Crew of 300 scientists spend 12 months in Arctic to search out solutions to local weather disaster


Hidden plastic peril in UK rivers uncovered as micro contaminants washed in with uncooked sewage

The temperature was recorded at a meteorological commentary station within the Russian city of Verkhoyansk on June 20 2020, and has been recognised as a report by the World Meteorological Organisation (WMO).

The WMO mentioned the temperature, extra befitting the Mediterranean than the poles, got here throughout circumstances which averaged as a lot as 10C above regular for a lot of the summer time over Arctic Siberia.

The heatwave fuelled devastating fires, drove huge sea loss and performed a significant position in 2020 being one of many three hottest years on report, the UN climate and local weather physique mentioned.

The Arctic is seeing excessive temperatures and is warming at a price greater than twice the worldwide common, prompting the WMO to create a brand new class in its “archive of climate and local weather extremes” for highest recorded temperature at or north of 66.5 levels latitude – the Arctic Circle.

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Tags: AntarcticascollapsedoomsdayGiantglaciergraveNewsposingriskWorld

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