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Fri Oct 5, 2012, 08:49 PM

Aldo Leopold (186 posts)

Climate scientist warns: "Arctic melting decades ahead of schedule"

Source: Huffington Post

"Low-lying island nations threatened by rising sea levels this century could see the disastrous consequences of climate change far sooner than expected, according to one of the world's leading climate scientists.

"In the wake of last month's discovery that the extent of Arctic sea ice coverage hit a record low this year, climate scientist Michael Mann told the Guardian that "Island nations that have considered the possibility of evacuation at some point, like Tuvalu, may have to be contending those sort of decisions within the matter of a decade or so."

"Mann, who is the director of Pennsylvania State University's Earth System Science Center, said that current melting trends show sea ice is "declining faster than the models predict."

Read more: Link to source

Could not figure out how to post a link to the full article.

24 replies, 3786 views

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24 replies	Author	Time	Post
Climate scientist warns: "Arctic melting decades ahead of schedule" (Original post)	Aldo Leopold	Oct 2012	OP
Here s the link	alfredo	Oct 2012	#1
Thanks, alfredo.	Aldo Leopold	Oct 2012	#2
I've been using computers for over thirty years, and they still confuse me at times.	alfredo	Oct 2012	#5
The alternative	dipsydoodle	Oct 2012	#19
So, I guess Branson and Ellison are Learning to Swim....	triplepoint	Oct 2012	#3
Europe is going to suffer greatly.	alfredo	Oct 2012	#4
As we predicted in E&E years ago.	joshcryer	Oct 2012	#6
On the bright side, some people, landlocked today, may end up with more	24601	Oct 2012	#7
"... valuable waterfront property."	greiner3	Oct 2012	#15
Forget the 'Human Caused' argument	RobertEarl	Oct 2012	#8
.	XemaSab	Oct 2012	#9
How does arctic ice melting change sea level?	pediatricmedic	Oct 2012	#10
Glaciers, which are sitting on land, will melt and drain into the oceans. n/t	ronnie624	Oct 2012	#11
Ice floats 10% above water line.	Festivito	Oct 2012	#12
yada	heaven05	Oct 2012	#13
more heat more methane more heat more methane more heat	ThomThom	Oct 2012	#18
Ice floats;	greiner3	Oct 2012	#16
is	heaven05	Oct 2012	#20
No, it's not because "it is infused with oxygen"	muriel_volestrangler	Oct 2012	#21
Water in its solid state	okasha	Oct 2012	#22
please	heaven05	Oct 2012	#14
I also curse them with;	greiner3	Oct 2012	#17
Florida will soon be a float state instead of a swing state.	yurbud	Oct 2012	#23
Science & Ladyparts Committee	Quantess	Oct 2012	#24

Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 08:59 PM

alfredo (46,559 posts)

1. Here s the link

http://www.huffingtonpost.com/2012/10/05/arctic-ice-melt-sea-level-rise_n_1942666.html?ir=Green

Up in the URL window, highlight the URL and copy, then paste. Try highlighting and copying the link above.

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Response to alfredo (Reply #1)

Fri Oct 5, 2012, 09:09 PM

Aldo Leopold (186 posts)

2. Thanks, alfredo.

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Response to Aldo Leopold (Reply #2)

Fri Oct 5, 2012, 09:41 PM

alfredo (46,559 posts)

5. I've been using computers for over thirty years, and they still confuse me at times.

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Response to Aldo Leopold (Reply #2)

Sat Oct 6, 2012, 08:39 AM

dipsydoodle (32,617 posts)

19. The alternative

is to highlight then press Ctrl and C to copy and then got to where you need to paste it to and press Ctrl and V and it will paste it there. I learned that way from my banjo pals over your side 10 years ago for checking out stuff on ebay quickly.

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Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 09:16 PM

triplepoint (431 posts)

3. So, I guess Branson and Ellison are Learning to Swim....

Last edited Sat Oct 6, 2012, 01:37 AM USA/ET - Edit history (1)

(both own their own island), and keeping their personal submarines handy...The low lying islands are global warming's "canaries in the coal mine." When they become submerged, we'll be that much closer to a real-life version of "Waterworld." I so want to grow some gills and watch Senator Inhofe drown in his own bodily fluids.

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Response to triplepoint (Reply #3)

Fri Oct 5, 2012, 09:35 PM

alfredo (46,559 posts)

4. Europe is going to suffer greatly.

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Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 10:06 PM

joshcryer (39,749 posts)

6. As we predicted in E&E years ago.

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Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 10:10 PM

24601 (2,485 posts)

7. On the bright side, some people, landlocked today, may end up with more

valuable waterfront property.

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Response to 24601 (Reply #7)

Sat Oct 6, 2012, 07:21 AM

greiner3 (3,959 posts)

15. "... valuable waterfront property."

A corollary to AZ being referred to the same way in the event of a huge CA earthquake.

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Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 10:51 PM

RobertEarl (2,902 posts)

8. Forget the 'Human Caused' argument

Have found the following to be effective when talking with a denier....

No reason to try melting warmed over ice cubes.

Instead, feed them the raw facts; The oceans, for what ever reason, are warming.

The ice is melting for some reason and that means climates will change. Sea levels will rise... yada, yadda, yaddda.

Now, what are we as a society going to do to prepare for the coming changes?

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Response to Aldo Leopold (Original post)

Fri Oct 5, 2012, 10:55 PM

XemaSab (57,399 posts)

9. .

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Response to Aldo Leopold (Original post)

Sat Oct 6, 2012, 12:45 AM

pediatricmedic (179 posts)

10. How does arctic ice melting change sea level?

It is already floating and displacing water and will have no effect on sea level.

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Response to pediatricmedic (Reply #10)

Sat Oct 6, 2012, 12:58 AM

ronnie624 (3,692 posts)

11. Glaciers, which are sitting on land, will melt and drain into the oceans. n/t

Last edited Sat Oct 6, 2012, 12:59 AM USA/ET - Edit history (1)

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Response to pediatricmedic (Reply #10)

Sat Oct 6, 2012, 03:09 AM

Festivito (12,283 posts)

12. Ice floats 10% above water line.

That 10% is a large amount of water. Add in glaciers and a raise is certain.

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Response to Festivito (Reply #12)

Sat Oct 6, 2012, 04:50 AM

heaven05 (2,372 posts)

13. yada

the oceans are warming also because of the loss of reflectivity of ice on suns rays. more water.

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Response to heaven05 (Reply #13)

Sat Oct 6, 2012, 08:14 AM

ThomThom (1,390 posts)

18. more heat more methane more heat more methane more heat

too hot and food will be hard to grow, drought, flood, fire............ water rising will be just part of the situation

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Response to Festivito (Reply #12)

Sat Oct 6, 2012, 08:01 AM

greiner3 (3,959 posts)

16. Ice floats;

Because it is infused with oxygen. This oxygen, when the ice is melted, brings the volume of water to the amount it was prior to becoming frozen in the first place.

Hence, there is almost no imperceptible rise in a body of water when ice melts.

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Response to greiner3 (Reply #16)

Sat Oct 6, 2012, 01:32 PM

heaven05 (2,372 posts)

20. is

that good science? I'll have get back to you on that.

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Response to greiner3 (Reply #16)

Sat Oct 6, 2012, 01:44 PM

muriel_volestrangler (65,326 posts)

21. No, it's not because "it is infused with oxygen"

It's because of the behaviour of hydrogen bonds:

Water is one of the few exceptions to this behavior. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

This unusual behavior has its origin in the structure of the water molecule. There is a strong tendency to form a network of hydrogen bonds, where each hydrogen atom is in a line between two oxygen atoms. This hydrogen bonding tendency gets stronger as the temperature gets lower (because there is less thermal energy to shake the hydrogen bonds out of position). The ice structure is completely hydrogen bonded, and these bonds force the crystalline structure to be very "open", as shown in the following picture:
...
In the following two pictures, the first shows a typical structure of liquid water, while the second is an ice structure; note the extra open space in the ice.

http://www.iapws.org/faq1/freeze.htm

There is no rise in the water level because, following Archimedes' Principle, the ice, like any floating object, displaces the amount of water equal to its weight. When it melts, the weight is unchanged, but the water molecules just occupy a smaller volume, with none of it above the surface.

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Response to pediatricmedic (Reply #10)

Sat Oct 6, 2012, 04:15 PM

okasha (3,834 posts)

22. Water in its solid state

Last edited Sat Oct 6, 2012, 04:17 PM USA/ET - Edit history (1)

is of lesser volume than the same amount of water in its liquid state, just as liquid water has less volume than steam. You can check this out for yourself by looking at your ice cube tray or making tea.

Edited to add: If we so-called first and second-world humans weren't the petroleum addicts we are, there wouldn't be a "schedule."

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Response to Aldo Leopold (Original post)

Sat Oct 6, 2012, 04:57 AM

heaven05 (2,372 posts)

14. please

put all repug senators and representatives that do not admit fossil fuel generated warming is cause should, at the right time, be put on an island that will be inundated. Period. can't say they didn't know it was coming. saw a 'conservative on bill maher giving his head in sand greed argument just last evening.

knew this was coming decades ago, all the models showed it!

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Response to heaven05 (Reply #14)

Sat Oct 6, 2012, 08:03 AM

greiner3 (3,959 posts)

17. I also curse them with;

Very long life, say they live to be 200 years. That will be long enough to rue their attitude, and carrying the water of their masters.

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Response to Aldo Leopold (Original post)

Sun Oct 7, 2012, 02:00 PM

yurbud (31,406 posts)

23. Florida will soon be a float state instead of a swing state.

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Response to Aldo Leopold (Original post)

Mon Oct 8, 2012, 12:54 PM

Quantess (23,947 posts)

24. Science & Ladyparts Committee

&feature=player_embedded

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