  Climatologists have calculated that a complete melting of the Greenland Ice
Sheet would cause global sea levels to rise by some 7.2 meters (23.6 feet).
This article investigates the possibility of physically removing this excess
water from the surface of the Earth by lifting the water into space. The
theoretical minimum amount of work for this task is calculated, and is found to
be equal to the amount of solar energy intercepted by the Earth in just 32
years.
