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!!
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Haydn
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No one can force me to come here. I'm a volunteer!!.
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!
Now if you've got any government buildings half way down the hill around you, you could attach a nice piece of chain to it in readiness. That would give them a sense of worth.
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.
If Greenland icecap goes (and it's due to be 50 to 100% gone within 100 years) then rise will be in order of 3-6 metres. However, the rise will occur in southern hemishphere, not northern, and the rise in UK will be zero in south of England and about 0.2 metres in Scotland
If I sit my great arse in a bath the water rises equally all the way round -- surely every ocean will rise by about the same amount? OK it might take the Med and Black Sea a litlle longer because of teh restricted entrances, but given the slow rate of melting that should allow time for more those areas to fill.,
Of course with all the weight gone there could be some uplifting but can't see that affecting UK in the manner described -- course know nowt about that kind of thing and reckon those that suggest the Gulf stream will pack in are probably right cos that's most likely to bugger up the sailing opportunities for us.
Have a look at the chart here (it's the bottom of the two) You can see that top northern hemisphere will not be affected (dark blue, including scotland) while southern england will hardly be affected http://www.newsandevents.utoronto.ca/bin1/010221a.asp
Hmmm... I can't say I'm fully convinced. Rebound from removing the ice sheet is a very slow effect, thousands rather than hundreds of years, so the initial effect of a rapid melting would be the Milton Keynes Marina effect. Then the tide would slowly go back out again, as it were.
Hmm!
So if the studies are correct, one suggestion calculates that even in 20 years I am likely to be sailing, average sea levels are only likely to increase by 36mm
Another likelyhood is that sea levels in the British Isles would actually fall.
I was contemplating buying myself a berth and parking spot.
I think I had better wait for further studies. The berth will not be worth much
if the boat is neaped most weekends!
On the other hand, if I press ahead with my ideas to pump seawater from tha Arctic Regions into depressions in the ice fields (therefore allowing it to freeze)
I might yet become a mirrionaire Rodney.
Regards Briani
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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.
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".
Location: The People\'s Republic Of South Yorkshire
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Re: When the ice caps melt...
I thought that if the ice caps melt, the sea level will rise but not because the ice has become water, but because the rise in temperature, decrease in salinity causes the water to expand slightly.
Fresh water is most dense at 4 deg C.
<hr width=100% size=1>It could have been worse - it could have been me.
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It could have been worse - it could have been me.
The water level will rise because of the enormous amount of water that will be released by the icecaps melting. All these calculations take into account whether icecaps are floating or grounded. Only a miniscule amount of rise would be due to decreased salinity
Two metres would be just about right! I would have a "deep water" mooring, the houses opposite would have their downstairs flooded more often, may be abandoned and fall down removing the obstruction to my view of the Harbour. My place would be worth another half a million!
we'll all be in our boxes by the time this happens .
maybe our greatgrandchildren will benifit fro a coastline cottage in.............. say heathrow
maybe a comeback for the flying boat..................
Given that the Greenland/Polar icecap has now been shown to be melting at a phenomanal rate, with 50% to 100% gone within 50 to 100 years, I expect we'll start seeing the results in the short to medium term, probably before many of us are in our boxes
A couple of years back some naval types in Whitehall did a study on effects of sea level rise. They concluded that all RN dockyards would be useless as even a mnetre or so rise would flood them at HW so the Admiral's Rover or wotever could not be parked safely, nor is it much use if a frigate is alongside and no-one can get at it without a RIB to cross the quay.
Govt took no notice until the officer in charge observed that they'd better start planning an alternative to Westminster because the Thames Barrier would not cope (14 dead in last pre-barrier Westminster flood, 1928).
Response from the Minister: "we can't let that happen, it would collapse London property prices!"
When the ice caps melt...
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