Antarctic waters changing due to climate

mlurp · #1 (**permalink**) 05-04-2012, 01:53 PM

Not that our residents anti-climate changes will belive this. Yet there are plenty of links a picture and a 3-D grapic at the site with the rest of this bit of news.

Quote:

.Antarctic waters changing due to climate: study

AFP – 8 hrs ago. 4 may 2012..............................

The densest waters of Antarctica have reduced dramatically over recent decades, in part due to man-made impacts on the climate, Australian scientists said Friday.

Research suggests that up to 60 percent of "Antarctic Bottom Water", the dense water formed around the edges of Antarctica that seeps into the deep sea and spreads out through the world's oceans, has disappeared since 1970.

"This is a response to changes that are happening to climate in the polar regions, both natural and human causes," lead researcher Steve Rintoul, from the Australian government's science body the Commonwealth Scientific and Industrial Research Organisation, told AFP.

"It's not driving changes in climate, it's responding to changes in climate. So it's a signal to us that things are changing around Antarctica."

Scientists are not sure what is causing the phenomenon but Rintoul said the leading hypothesis is that as more of the ice on Antarctica melts around the edges of that continent, it adds fresh water to the ocean.

He said this could be causing the "sinking" of the dense water at high latitudes, a process that has been linked to major changes in climate in the past.

............................................. CONTINUED ................................................

Antarctic waters changing due to climate: study - Yahoo! News

faithful_servant · #2 (**permalink**) 05-04-2012, 02:32 PM

Quote:

.Antarctic waters changing due to climate: study

AFP – 8 hrs ago. 4 may 2012..............................

The densest waters of Antarctica have reduced dramatically over recent decades, in part due to man-made impacts on the climate, Australian scientists said Friday.

Research suggests that up to 60 percent of "Antarctic Bottom Water", the dense water formed around the edges of Antarctica that seeps into the deep sea and spreads out through the world's oceans, has disappeared since 1970.

"This is a response to changes that are happening to climate in the polar regions, both natural and human causes," lead researcher Steve Rintoul, from the Australian government's science body the Commonwealth Scientific and Industrial Research Organisation, told AFP.

"It's not driving changes in climate, it's responding to changes in climate. So it's a signal to us that things are changing around Antarctica."

Scientists are not sure what is causing the phenomenon but Rintoul said the leading hypothesis is that as more of the ice on Antarctica melts around the edges of that continent, it adds fresh water to the ocean.

He said this could be causing the "sinking" of the dense water at high latitudes, a process that has been linked to major changes in climate in the past.

............................................. CONTINUED ................................................

So they have evidence that "suggests" something might be happening and if it is really happening they don't know what causes it except that they know that it's because of man. GOT IT!!!

Mikeyy · #3 (**permalink**) 05-04-2012, 02:57 PM

Quote:

Originally Posted by faithful_servant

So they have evidence that "suggests" something might be happening and if it is really happening they don't know what causes it except that they know that it's because of man. GOT IT!!!

And because it has to do with the environment that we all depend on you will see a giant plot and not buy that man can cause any change in climate

mlurp · #4 (**permalink**) 05-04-2012, 02:58 PM

Quote:

Originally Posted by faithful_servant

So they have evidence that "suggests" something might be happening and if it is really happening they don't know what causes it except that they know that it's because of man. GOT IT!!!

This is from the same piece

Quote:

The densest waters of Antarctica have reduced dramatically over recent decades, in part due to man-made impacts on the climate, Australian scientists said Friday

"This is a response to changes that are happening to climate in the polar regions, both natural and human causes," lead researcher Steve Rintoul, from the Australian government's science body the Commonwealth Scientific and Industrial Research Organisation, told AFP

You picked one word and ran with it. Got it.

saltwn · #5 (**permalink**) 05-04-2012, 03:54 PM

Quote:

Originally Posted by mlurp

This is from the same piece

You picked one word and ran with it. Got it.

All I know is I'm glad I moved away from the coast.

Infidel Dog · #6 (**permalink**) 05-04-2012, 04:00 PM

Quote:

Scientists are not sure what is causing the phenomenon but Rintoul said the leading hypothesis is that as more of the ice on Antarctica melts around the edges of that continent, it adds fresh water to the ocean.

There is one problem with this hypothesis which based only on common sense would appear to be rather glaring.

If there's all this melting ice in Antarctica why is the sea ice setting records year after year for growth?

Currently the anomaly is .774 of a million square kilometres above the average.

http://arctic.atmos.uiuc.edu/cryosph....antarctic.png

There is a peninsula in the Northwest of the continent that juts up towards the tropics. Usually these hysterical press releases are based on extrapolations from that comparatively small area.

saltwn · #7 (**permalink**) 05-04-2012, 04:05 PM

Quote:

Originally Posted by Infidel Dog

There is one problem with this hypothesis which based only on common sense would appear to be rather glaring.

If there's all this melting ice in Antarctica why is the sea ice setting records year after year for growth?

Currently the anomaly is .774 of a million square kilometres above the average.

http://arctic.atmos.uiuc.edu/cryosph....antarctic.png

There is a peninsula in the Northwest of the continent that juts up towards the tropics. Usually these hysterical press releases are based on extrapolations from that comparatively small area.

Because it's breaking off is my first thought.

Infidel Dog · #8 (**permalink**) 05-04-2012, 04:39 PM

I see. So you're seeing it as kind like a yolk of the egg at the center where all the heat is emanating from melting the interior of the continent and cracking the ice at the edges while the colder white around the continent grows.

First of all that sounds immediately silly, but I'll help you make the argument then destroy it.

Pro-ridiculous theory: There are ice shelves that crack and break around Antarctica.

Anti-ridiculous theory: Cracking ice shelves are nothing new. It's always happened, and again isn't that more in the small area to the North and West?

Pro-ridiculous theory: Eric Steig showed interior Antarctic warming.

Anti-ridiculous theory: Again, that was science by press release. When it was looked into he was talking about old warming from I forget how many years ago, and even then what he did was he took warming from that peninsula I was talking about, and used magic math to smear it all over the continent. I think even Steig is backing away from that one. I know he's at least said oops on part of it, but it doesn't matter - a quick Google will turn up that old press release, so if want to look you can find it, and say, "Aha. See. See."

Mikeyy · #9 (**permalink**) 05-04-2012, 04:57 PM

Quote:

Originally Posted by Infidel Dog

I see. So you're seeing it as kind like a yolk of the egg at the center where all the heat is emanating from melting the interior of the continent and cracking the ice at the edges while the colder white around the continent grows.

First of all that sounds immediately silly, but I'll help you make the argument then destroy it.

Pro-ridiculous theory: There are ice shelves that crack and break around Antarctica.

Anti-ridiculous theory: Cracking ice shelves are nothing new. It's always happened, and again isn't that more in the small area to the North and West?

Pro-ridiculous theory: Eric Steig showed interior Antarctic warming.

Anti-ridiculous theory: Again, that was science by press release. When it was looked into he was talking about old warming from I forget how many years ago, and even then what he did was he took warming from that peninsula I was talking about, and used magic math to smear it all over the continent. I think even Steig is backing away from that one. I know he's at least said oops on part of it, but it doesn't matter - a quick Google will turn up that old press release, so if want to look you can find it, and say, "Aha. See. See."

I don't think I will look to the right for advice on the environment.

Infidel Dog · #10 (**permalink**) 05-04-2012, 05:03 PM

Quote:

Originally Posted by Mikeyy

I don't think I will look to the right for advice on the environment.

Of course not. Why would you start listening to common sense? Now tell me why what you would, or wouldn't do matters.

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