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Originally posted by masqua
To me, there are two questions that require answers first:
*Is there a discernable rise in sea level?
*Is there a distinct rise in mean temperatures worldwide?
What will be the results of continued elevations to the conditions mentioned above?
Originally posted by Elliot
During winter the ice sheets of Antartica are bigger than they have been for a long time.
Originally posted by atlasastro
the debate has evolved into one where one side believes it is anthropogenic and the other side disagrees.
Originally posted by atlasastro
It is interesting that you mention the discussion of the Facts etc.
As Tim Flannery seems to feel the Facts are clearly there and that they represent real AGW and Climate Change.
www.abc.net.au...
You can find the 14 minute interview here. There is also another segment dedicated to the Hadley hack.
Originally posted by masqua
Originally posted by atlasastro
the debate has evolved into one where one side believes it is anthropogenic and the other side disagrees.
True.
The questions surrounding rising sea levels and global mean temperatures are still debated, though, and it would be helpful if the answers to those two questions were put to rest prior to discussion on the effects human activity may have held in that regard.
We should first establish the veracity of the claims and then look at the data in relation to the Industrial Revolution and world population numbers as an overlay of the established effects.
Originally posted by thoughtsfull
Originally posted by Conclusion
reply to post by thoughtsfull
I definatly think some people will end up with some nice beach front property.. I'm hoping it's a little over 16ft so I can park the boat at the end of the garden
tho some of the rich snobs in this part of the world won't be happy with all that existing waterfront property being underwater
Look at you, assuming the wealthy won't use the law to just steal your land.
Article from: The Australian
ICE is expanding in much of Antarctica, contrary to the widespread public belief that global warming is melting the continental ice cap.
The results of ice-core drilling and sea ice monitoring indicate there is no large-scale melting of ice over most of Antarctica, although experts are concerned at ice losses on the continent’s western coast.
Antarctica has 90 per cent of the Earth’s ice and 80 per cent of its fresh water. Extensive melting of Antarctic ice sheets would be required to raise sea levels substantially, and ice is melting in parts of west Antarctica. The destabilisation of the Wilkins ice shelf generated international headlines this month.
However, the picture is very different in east Antarctica, which includes the territory claimed by Australia.
East Antarctica is four times the size of west Antarctica and parts of it are cooling. The Scientific Committee on Antarctic Research report prepared for last week’s meeting of Antarctic Treaty nations in Washington noted the South Pole had shown “significant cooling in recent decades”.
Originally posted by jane_within
Originally posted by thoughtsfull
Originally posted by Conclusion
reply to post by thoughtsfull
I definatly think some people will end up with some nice beach front property.. I'm hoping it's a little over 16ft so I can park the boat at the end of the garden
tho some of the rich snobs in this part of the world won't be happy with all that existing waterfront property being underwater
Look at you, assuming the wealthy won't use the law to just steal your land.
*smacks head* your right there...
thanks for the reminder, I nearly forgot my place
Originally posted by Elliot
It is summer in the southern hemisphere at present.
Ice will melt when it gets warmer but then it freezes again come winter.
Originally posted by Britguy
So, by focusing on ice loss in the western antarctic, they just "forget" to mention ice thickening in the Eastern antarctic, which is much bigger.
Cherry picking details again?
Letter
--------------------------------------------------------------------------------
Nature Geoscience
Published online: 22 November 2009 | doi:10.1038/ngeo694
Accelerated Antarctic ice loss from satellite gravity measurements
J. L. Chen1, C. R. Wilson1,2, D. Blankenship3 & B. D. Tapley1
Abstract
Accurate quantification of Antarctic ice-sheet mass balance and its contribution to global sea-level rise remains challenging, because in situ measurements over both space and time are sparse. Satellite remote-sensing data of ice elevations and ice motion show significant ice loss in the range of -31 to -196 Gt yr-1 in West Antarctica in recent years1, 2, 3, 4, whereas East Antarctica seems to remain in balance or slightly gain mass1, 2, 4, with estimated rates of mass change in the range of -4 to 22 Gt yr-1. The Gravity Recovery and Climate Experiment5 (GRACE) offers the opportunity of quantifying polar ice-sheet mass balance from a different perspective6, 7. Here we use an extended record of GRACE data spanning the period April 2002 to January 2009 to quantify the rates of Antarctic ice loss. In agreement with an independent earlier assessment4, we estimate a total loss of 19077 Gt yr-1, with 13226 Gt yr-1 coming from West Antarctica. However, in contrast with previous GRACE estimates, our data suggest that East Antarctica is losing mass, mostly in coastal regions, at a rate of -5752 Gt yr-1, apparently caused by increased ice loss since the year 2006.
Originally posted by masqua
Originally posted by Elliot
During winter the ice sheets of Antartica are bigger than they have been for a long time.
A perfect example of an unsubstantiated statement.
Please, could you provide any proof that this is exactly the case, not in the short term (re: the recent La Nina event), but in the long term?
There is no doubt about the shrinking Arctic ice cap, for instance.
(visit the link for the full news article)
Originally posted by atlasastro
Antarctica Melting FASTER!
Scientists worry that rising global temperatures could trigger a rapid disintegration of West Antarctica, which holds enough frozen water to push up the global ocean watermark by about five metres (16 feet).