Sunday, May 2, 2010

Melting sea ice would cause sea levels to rise by 'hair's breadth'

Melting icebergs are causing sea levels to rise, scientists have discovered, but only by a hair's breadth every year.
By Louise Gray, Environment Correspondent - The Telegraph
Researchers at the University of Leeds calculate that around 1.5 million Titanic-sized icebergs each year are melting into the sea every year in the Arctic and Antarctic. This is causing sea level to rise by just 49 micrometers per year - around a hair's breadth.
At that rate it would take 200 years for the oceans to rise by 1cm as a result of melting sea ice. If all the floating ice in the world melted it would cause sea levels to rise by just 4cm. In comparison if all the ice on land melted it would cause a rise of 70m. Sea levels will also rise as the oceans get warmer because of thermal expansion. Read more.

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