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nightshade
02-16-2006, 03:12 PM
Greenland's ice is melting much faster than previously thought. If it all melts, sea levels will rise by 7 meters (23 feet).

http://news.bbc.co.uk/2/hi/science/nature/4720536.stm

Doe anyone know how far above sea level Manhattan is?
Riverboat
02-16-2006, 06:57 PM
Doe anyone know how far above sea level Manhattan is?Not high enough, if you ask me.
DoctorDoom
02-16-2006, 07:55 PM
Too high. Some of it might escape.

In 1996, Greenland was losing about 100 cubic km per year in mass from its ice sheet. In 2005, this had increased to about 220 cubic km. The volume of the oceans is about 1.37 billion cubic kilometers. 220 km³ is about 0.0000161% of that.

The surface area of the oceans is about 510 million square kilometers. Therefore 220 km³ spead out over 150,000,000 km² would increase the depth by 1.47 mm/year. At that rate it would require 4762 years to rise 7 meters. And this of course assumes that natural climate cycles don't reverse the process before 6768 AD. Actually, it would take a bit longer, given that the surface area would increase as the waters spread inland.

It smacks of the infamous box-office bomb, Waterworld. Scaremongering is not the hallmark of good science.
ThomasMore
02-16-2006, 08:00 PM
Greenland's ice is melting much faster than previously thought. If it all melts, sea levels will rise by 7 meters (23 feet).

http://news.bbc.co.uk/2/hi/science/nature/4720536.stm

Doe anyone know how far above sea level Manhattan is?

I am in Queens as I write this, about a mile from LaGuardia. LaGuardia is 13 feet above sea level.
DoctorDoom
02-16-2006, 08:27 PM
Well, we'll still be able to land seaplanes there. :D
ThomasMore
02-16-2006, 09:51 PM
Well, we'll still be able to land seaplanes there. :D

Good one! :thumb: As it was in the beginning, so shall it be in the end.

P.S. An excellent mathematical exposition of the EWs' nonsense, Doctor.

http://www.airchive.com/airline%20pics/NY%20Laguardia%20Compressed/Flying%20boats%20plaque.jpg
Riverboat
02-16-2006, 11:27 PM
Too high. Some of it might escape. The inhabitants, or the water?
DoctorDoom
02-17-2006, 12:49 AM
The city. I'd like to visit it one day in a glass-bottom boat, and dry land would limit the accessibility.