Originally Posted by Flightfreak
GreenLAND ice is above land! And for your information from 1km (0.63 miles) up to 3 km (1.87 miles) thick. Estimated: 2,85 million km³ (1.78 million miles³) ice covering 80% of LAND.
You're right. I was wrong. There is enough ice in Greenland to make the seas rise 6.5 meters. (assuming that the ice in Antarctica and in the Arctic area doesn't melt which would make the sea level fall.) I have a hard time visualizing an ice sheet that is 3 km thick. That's a little more than a third as high as Mt. Everest.
I find it interesting that there are only seven mountains in Greenland that are over 3km tall and more than twenty mountains listed as being worth climbing. That indicates to me that most of the ice depth that you are talking about is below sea level and when it melts will merely be a lake, and will not raise the sea level at all.
I got the impression that these mountains are out in the middle of the ice cap. But I could be wrong here also. I do have a problem with the image of all these famous mountain climbers scrambling down into thousand meter deep holes to get to the top of all these never before climbed mountains.
Have I ever told you about the problems that Physicists have with "reality" getting in the way of their numbers?
May 17 Gunnbjørn Fjeld 3694m N6
55.170, W029:53.912 3694m Highest on Greenland
In this frigid Arctic environment, approximately 85 percent of the island's surface is covered by a permanent ice cap. Averaging 5,000 feet in thickness, the ice cap in some places is as much as 14,000 feet thick and includes about 10 percent of all the ice in the world.
Lutgens, Frederick K., & Edward J. Tarbuck. The Atmosphere. 6th ed. 1995: 397. "Elsmitte, at the center of the Greenland ice cap is rests an elevation of almost 3,000 meters."