Sybarite
regular
Reged: 07/12/2002
Posts: 3379
Loc: France
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and the water level rises two metres how many new harbours will be formed?
And will marina prices come down?
John
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BrendanS
regular
Reged: 11/06/2002
Posts: 41795
Loc: Me: Wilts. Boat: Lymington
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Which ice cap? The effects are skewed to the opposite hemisphere
and why do you think the water level will rise by 2m. Which part of the world do you base this on?
Me transmitte sursum, caledoni
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hlb
regular
Reged: 16/05/2001
Posts: 19445
Loc: Any Pub Lancashire or Wales
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Well all the old harbours in Lancashire have disapeared over the last 100 years. Some are 20miles inland now. So I suppose if the water level reappears back to normal. All the new marinas will be under water and the old ones will be feasable again. Although maybe not at the 100 years ago prices!!
No one can force me to come here. I'm a volunteer!!.
Haydn
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AlexL
regular
Reged: 24/01/2003
Posts: 832
Loc: East Coast
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depends where you are! As I live on one of the few hills in Essex I will inherit an ocean frontage in the new East Anglian arpigeligo <sp?> and therefore will have my own mooring!
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Evadne
regular
Reged: 27/02/2003
Posts: 4779
Loc: Hampshire, UK
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Well the North pole will be ice free in about 70 years, but that won't affect sea level. There could be a rash of new marinas in Siberia and North West territiories though.
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Celandine
regular
Reged: 12/03/2002
Posts: 518
Loc: Medway
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As Dave-White has hinted, the melting of the North Polar ice cap will theoretically NOT raise sea levels at all. It's basic physics: since the ice cap is floating, it is already diplacing its own weight in water; when it melts the resulting melt water will have the same effect as the original ice on sea levels. Different for the South Pole of course.
Mick
. . . . . . .boatyard
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DJE
regular
Reged: 21/06/2004
Posts: 2457
Loc: Fareham
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As you say for the sea ice; but I can't see that melting without some of the Greenland ice sheet going as well.
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SteveB_Sigma33
regular
Reged: 25/11/2003
Posts: 285
Loc: Port Solent, UK
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Constant freeflow at Port Solent, no more waiting!!! Yahoo bring it on
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Evadne
regular
Reged: 27/02/2003
Posts: 4779
Loc: Hampshire, UK
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Loss of sea ice may mean that the glaciers carve more rapidly, which will (according to the Merchants of Doom) both raise sea level a little and fill the North Atlantic and English channel with icebergs. On the other hand the sea will still freeze in the winter, so there's not going to be a significant change. I think the jury's still out on the precise outcome, but it could start to be a problem by the start of the next century. General consensus on Antarctica seems to be that "Western" Antarctica (Graham Land and Palmer Land, mostly,) may lose its ice sheet periodically (every 10,000 years) but Eastern Antarctica, which contains something approaching 90% of the world's fresh water, will remain intact barring a major catastrophe.
Many of the sea level rise predictions to date were based on salinity measurements, and the assumption that the dilution was due to arctic and antarctic ice melting. It is now apparent that it was almost all due to the arctic sea ice, which means we aren't as doomed as they thought we were, and the Maldives and other low-lying islands are safe for a while yet. Mind you, living on a sand bank in the middle of the Indian Ocean doesn't come into my definition of "safe".
Hope that makes it clearer?
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snowleopard
regular
Reged: 16/05/2001
Posts: 12980
Loc: Cornwall
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nice article about it by libby purves in YM a year or two back. delightful ideas like chiltern marinas, foul ground in birmingham bay etc.
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