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BenignBodger BenignBodger is offline
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Default Will sea levels really rise if the glaciers melt?

On 4/2/2015 5:40 PM, Rebel1 wrote:
I posting this here because there a good analytical minds here.

An experiment: Fill a tall clear glass half-way with ice cubes. Then add
enough water so the bottom cubes no longer touch the bottom (i.e., they
are all floating). Now put a mark at the water level and wait until the
cubes all melt. Did the water rise above your mark?

In my case, it didn't.

R1


Icebergs are not glaciers -- they are pieces of glaciers which fell off.
When they melt they will not raise the level of the ocean but when they
fell into the ocean in the first place they _did_ raise the level. If you
don't believe that, fill your hypothetical glass to the brim and then, very
gently, place an ice cube into it and see what happens.

Unless you've actually been there you would not believe the amount of ice
covering the land in Greenland. When it melts, whether in the form of
icebergs or not, you better believe that the level of the ocean will rise.
And Greenland has a fraction of the amount of ice that Antarctica does.