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Under the sea: How shrinking ice will change Hong Kong's shorelines

PUBLISHED : Monday, 23 December, 2013, 12:55pm
UPDATED : Friday, 27 December, 2013, 3:50pm

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The earth contains almost 21 million cubic kilometres of ice, or about 2 per cent of the planet´s water. As the earth warms, the ice is shrinking. Scientists have warned the Arctic could be free of ice by 2040. If all of the world´s ice were to melt, sea levels would rise by more than 65 metres, radically altering shorelines. This is how Hong Kong looks under that scenario.

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iamkityan
I suppose the estimate of sea level rise is about 1m, which varies from places (tropics) to places (arctic). 65m is nevertheless way too much.
See page 24 of the fifth IPCC report's summary for policymakers: ****www.climatechange2013.org/images/uploads/WGI_AR5_SPM_brochure.pdf
hongkiejj@malaysiaboleh
the very same person dat has warned the world about global warming and is stuck in antarctic. I wonder if I should be worry enough or not. or maybe it should be rename global icing...
joyalsofi
Why is there no source given for this information and the scientists named who have predicted this level of sea rise?
Some of those commenting below question the accuracy of the 65 m rise. One way to overcome objections is to provide accurately sourced data, such as:
"The volumes of the Greenland and Antarctic Ice Sheets are equivalent to approximately 7 m and 57 m of sea level rise, respectively." - ****www.ipcc.ch/publications_and_data/ar4/wg1/en/ch4s4-1.html#table-4
Which admittedly is less than 65 meters.
It is important to consider just how much damage would be done at lesser amounts. What about a 6 meter rise? Who would assert that an insignificant amount of damage could result from this more likely figure? There should be a way to have a sliding scale chart to see what happens in a lesser but more probably amount. That would be illuminating. Either way, governments seem willing to accept whatever devastating outcomes are in store rather than take steps to reconfigure the current way society does business.
michael.vennel.5
I'm confused how you arrived at the 65 meter estimate... The oceans cover 361 million square kilometers. 361/21=17 meters, and that is pretending the shorelines don't expand, and that all the ice is on land, so that 100% of the ice melt would increase ocean volume, neither of which is the case.
village2206
Theoretically maybe, but in practice this is just the sort of challenge our so capable planning department will find a piece of cake. Under the guidance of our beloved self appointed government they will simply build dutch dams. Ugly! for shore!!
(I am restricted in using the actual word for dutch dams, absolutely no offence or malice intended but there you go.)
BoSee
I think you mean ****, just testing SCMP's powers of censorship
ttsangwk
Scientific evidence points at Antarctic Ice being at it's highest level in the last 20-30 years, during supposed Anthropormorthic Climate warming period.
Even the IPCC Fifth Assessment report acknowledges this fact.
The same IPCC report which is the primary proponent of anthropormorphic global warming and predicted by now that Sea ice would be at a record low and will continue to fall over the years (trend lines were predicted to show a continual drop in Ice surface area)
seppolehto@mac.com
I was totally confused about the headline "How shrinking ice will change Hong Kong's shorelines", I read from somewhere that the Antarctic ice has been growing about 18cm every year, so the base camps need to be moved and rebuilt every ten years or so. Is the new ice age really coming as it was scientifically predicted in the 1970's?
dynamco
yes ask the poor bxstards trapped in Antartic sea ice the ice breakers cannot reach about how 'thin' the ice is that is about to crush their ship
probably the only way out is to use explosives or drop bombs
and that is global 'warming?'
mercedes2233
This is alarmist. If the earth cools, and we enter the glacier age, again, then the sea levels would not bother us. We would be engaged trying to survive the cold. Even dinosaurs didn't survive the last time.
However, neither scenario is about to occur.
The IPCC has stopped talking about global warming for some time, and even Australia has scrapped its Climate Commission.

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