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Antarctica 2017

Re: Antarctica 2017

Unread postby jedrider » Thu 18 May 2017, 18:01:45

dohboi wrote:And now there's a story in the Guardian, for the trifecta!

https://www.theguardian.com/science/201 ... eseatchers

Climate change is turning Antarctica green, say researchers

In the past 50 years the quantity and rate of plant growth has shot up, says study, suggesting further warming could lead to rapid ecosystem changes


Ah, future home of mankind. It's starting to look habitable.
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Re: Antarctica 2017

Unread postby dohboi » Fri 19 May 2017, 21:51:56

Yup

future real estate prospects loom...

and now rolling stone is picking up the antarctic story...but the topic still doesn't rate a sticky on our humble site, for some reason...

http://www.rollingstone.com/politics/fe ... er-w481260
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Re: Antarctica 2017

Unread postby Plantagenet » Fri 19 May 2017, 22:12:59

dohboi wrote:and now rolling stone is picking up the antarctic story...

http://www.rollingstone.com/politics/fe ... er-w481260


Lots of different scenarios have been proposed for "DOOM" over the years

Now, according to Rolling Stone, we've got a "DoomsDay Glacier".

The newly funded NSF study of Thwaites Glacier should get us some more data in a couple more years to better evaluate just how dangerous this threat will turn out to be and how quickly it will eventuate..

IMHO Its going to turn out to be very very dangerous.

Cheers!

"Its a brave new world"
---President Obama, 4/25/16
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Re: Antarctica 2017

Unread postby dohboi » Sat 20 May 2017, 01:56:28

Thanks, P.

And the hits just keep comin'

“Decoding Antarctica's response to a warming world”

http://www.bbc.com/news/science-environment-39975709

In the iceberg-infested waters of the Amundsen Sea Embayment (ASE), it obtained the very first cores to be drilled from just in front of some of the mightiest glaciers on Earth.

Chief among these are Pine Island Glacier and Thwaites Glacier, colossal streams of ice that drain the White Continent and which are now spilling mass into the ocean at an alarming rate.

There's concern that deep, warm water is undercutting the glaciers, possibly tipping them into an unstoppable retreat. And that has global implications for significant sea-level rise.
...
The goal was to retrieve seafloor sediments that would reveal the behaviour of the West Antarctic Ice Sheet (WAIS) in previous warm phases. To read the future in the past.

"If you find ice-rafted debris (stones dropped by icebergs), for example, you can be sure there was ice on land and that the ice had advanced to the coast," explained Claus-Dieter Hillenbrand from the British Antarctic Survey (BAS).

"But also new developments - especially what's known as geochemical provenance - have emerged in the last 10 years that mean it's even possible now to compare this material with rocks on land to pin down the actual sources in the hinterland
.

thnx to aslr at neven's forum for this
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Re: Antarctica 2017

Unread postby dohboi » Sun 21 May 2017, 09:20:53

CNN has picked up on Antarctic greening, too

http://edition.cnn.com/2017/05/19/europ ... index.html
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Re: Antarctica 2017

Unread postby Revi » Fri 26 May 2017, 06:59:31

The Rolling Stone article is really interesting. The short story is that there is a continental shelf that's holding back the warm water, and it's getting in now and melting underneath the glacier. It is 6000 feet deep and goes down to bedrock, under sea level. Once it melts it will start to fall into the ocean. The tallest cliffs of ice are 300 feet tall, so that 6000 will have to crumble down to 300, and it's going to take a while and continuous crashing of the ice mass will continue until we have raised sea levels by hundreds of feet. Maybe by the end of the century. Great...

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Deep in the mud and slime of things, even there, something sings.
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