Have fun with doom & gloom

[BigV]

as to your second question, sediment causing sea levels to rise versus melting landbound ice causing sea levels to rise...

Given the subject of the thread, the sediment contribution is much less dramatically affected by an increase in temperature compared to glaciers' vulnerability to rising temperatures. Of course, the sediment is moved into the sea by erosion, excepting wind borne sand and dust (like in the Sahara).

[Hippikos]

But for ice that is not floating, like the vast amounts of ice in Antartica that are thousands of feet thick and rest on the land. When that ice enters the water, the level of the water will rise. Just ask Archimedes.

Archimedes probably wouldn´t know what would happen with the climate 2300 years later, but with the Southern Hemisphere cooling down this question is highly hypothetical and therefore irrelevent. In fact Antarctica is gaining, which is contributing negative to loss of Arctic ice, a fact rarely mentioned. BTW 90% of Earth ice mass is on Antarctica.

[BigV]

Originally Posted by Hippikos

Archimedes probably wouldn´t know what would happen with the climate 2300 years later, but with the Southern Hemisphere cooling down this question is highly hypothetical and therefore irrelevent. In fact Antarctica is gaining, which is contributing negative to loss of Arctic ice, a fact rarely mentioned. BTW 90% of Earth ice mass is on Antarctica.

Southern Hemisphere cooling down this question is highly hypothetical and therefore irrelevent*

cite please?

Antarctica is gaining**, which is contributing negative to loss of Arctic ice, a fact rarely mentioned.

cite please?

90% of Earth ice mass is on Antarctica.

True.

* ahhh, bullshit. how can you exempt a part of the planet as "irrelevant" when it comes to global climate change? Unless you're saying it's irrelevant because it's false. BTW, it is false.

** more bullshit. "Antarctica is losing about 36 cubic miles of ice per year."

[xoxoxoBruce]

Originally Posted by BigV

density is mass per volume. it only appears to apply here because of the extremely rare property of water, that it expands when cooled. not that cool water is rarer (though it's becoming rarer), but that very few other materials behave likewise. people see ice (water) "floating" in water and they're observing the relative difference in density of the same material (water).

Water increases density (shrinks) until it gets to 39.2 deg F, where it reaches maximum density. from 39.2 down to 32 deg F, water decreases density (expands). It expands again during phase change from water to ice, then as the ice gets colder, for a couple of degrees,it continues to expand. From that point the ice shrinks as it gets colder, but will never reach the density of water. That's why ice(bergs) float.

[xoxoxoBruce]

** more bullshit. "Antarctica is losing about 36 cubic miles of ice per year."

They are making this new (and of course disputed) claim, because the 2 GRACE satellites measure variations in Earth's mass and gravitational pull: Increases or decreases in the Antarctic ice sheet's mass change the distance between the satellites as they fly over the region.

Wow, how in hell do the calibrate something like that? The fluctuations have to be minute.

[Hippikos]

cite

Such a pity nobody believes my blue eyes...

Davis, C. H., et al., 2005. Snowfall-driven growth in East Antarctic ice sheet mitigates recent sea-level rise. Science, 308, 1898-1901.

Rignot, E., and P. Kanagaratnam, 2006. Changes in the velocity structure of the Greenland ice sheet. Science, 31, 986-990.

Vaughn, D.G., 2005. How does the Antarctic ice sheet affect sea level rise? Science, 308, 1877-1878.

Church, J.A. and J.M. Gregory. 2001: Changes in sea level, Intergovernmental Panel on Climate Change, pp. 641–693.,UK and New York, NY: Cambridge University Press.

Wingham, D.J., A. Shepherd, A. Muir, and G.J. Marshall. 2006: Mass balance of the
Antarctic ice sheet. Philosophical Transactions of the Royal Society A, 364, 1627-1635.


Plus amongst others publicized in Nature and a simple math even you can do: Arctic looses ice (positive contribution), Antarctic gaines ice (negative contribution).


From Davis et al the below graph:


As usual nature has it ups and downs as shown in above graph. Sharp declines in 95 and 01 are "gefundenes fressen" for alarmists like Al Bore with his dramatic breaking ice shelves images. The long term trend since 92 however is upwards.

more bullshit. "Antarctica is losing about 36 cubic miles of ice per year."

More drama. I raise your one Wash Post article with 6:

“As climate shifts, Antarctic ice sheet is growing” –Los Angeles Times, May 20, 2005

“Scientists link global warming to Antarctic’s ice cap’s growth” –Chicago Tribune, May 20, 2005

“Antarctica ice cap thickens” –Pittsburgh Post Gazette, May 20, 2005

“Warming is blamed for Antarctic’s weight gain” –New York Times, May 20, 2005

“Ice sheet confounds climate theory” – The Telegraph, May 20, 2005

“Antarctica ice cap thickens, slowing rise in sea levels” – Pioneer Press, May 20, 2005


Most of the decrease in ice on Antarctica is on the Western Pensinsula. The, much bigger, Eastern part has an increase of ice mass, which of course is conveniently forgotten by the AGW Taliban.

[Griff]

I won't dispute global warming itself but I do dispute the various scarey scenarios which are run out. The global climate system is still too complex to predict. Global Warming Theory is flawed because it fails at the most basic level, it isn't predictive. The spinners keep spinning their new catastrophe of the week because they think selling fear is the only way to go. They are defeating their own cause if they over-do the sky is falling routine.

[Cyclefrance]

Has anyone heard any more about the cold water 'chimneys' that fed the Labrador current (I think) from the Arctic ice cap. They were supposed to be disappearing with the expected effect to be a weakening of the Gulf Stream that gives the British Isles its tenmperate climate - BTW, looking back to the old school days of A level exams for a moment, and one geography question in my paper was: 'Britain doesn't have a climate, only weather - discuss' You don't have to stay here long to know how true that is - but if the Gulf Stream weakens then we will see less of the 'four-seasons-in-one-day' we enjoy (enjoy?) and more distinct divides between winter and summer - hasn't happened yet though...

[Cyclefrance]

Apparently not