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Melting icebergs boost sea-level rise


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#1    behaviour???

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Posted 01 May 2010 - 09:49 AM

www.newscientist.com said:

When an ice cube melts in a glass, the overall water level does not change from when the ice is frozen to when it joins the liquid. Doesn't that mean that melting icebergs shouldn't contribute to sea-level rise? Not quite.

Although most of the contributions to sea-level rise come from water and ice moving from land into the ocean, it turns out that the melting of floating ice causes a small amount of sea-level rise, too.

Globally, it doesn't sound like much just 0.049 millimetres per year but if all the sea ice currently bobbing on the oceans were to melt, it could raise sea level by 4 to 6 centimetres.

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#2    Watchers

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Posted 01 May 2010 - 10:04 AM

View Postbehaviour???, on 01 May 2010 - 09:49 AM, said:

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Interesting, but as the article states, the difference is based on the mere fraction of a difference in salinity. If it all were to melt at once, it would only contribute 4-6 centimeters.





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