Questions tagged [ice-sheets]

[ice-sheets] concerns questions on the large present and past continental scale ice sheets, such as Antarctica, Greenland, the Laurentide, Fennoscandian and Alpine ice sheets.

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28
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6answers
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How much will sea level rise if all the polar ice melts?

There are many movies about global warming, which say that melting of all polar ice would cause the whole world to suffer a huge flood. According my research (teachers, TV, Internet) people hold one ...
26
votes
4answers
6k views

Why is relative sea-level falling in Hudson Bay?

Why is the sea level in Hudson Bay decreasing so much? Hudson Bay is pretty far up north, much closer to glaciers. Would it make sense for it to recede at this level with sources of fresh water ...
11
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3answers
4k views

How long to melt all the polar ice?

The answers to this question say that the sea level will rise 66m if all the polar ice, etc, melts. How long will this take? Transporting incredible amounts of heat energy to the poles and injecting ...
7
votes
2answers
516 views

How does ice-penetrating radar “see” through kilometers of ice without being absorbed?

The BBC News article Isolated lakes found beneath Canadian ice sheet links to the open access Science Advances article Discovery of a hypersaline subglacial lake complex beneath Devon Ice Cap, ...
9
votes
4answers
318 views

Considering how old the Antarctic ice cover is, why isn't it much thicker?

The Wikipedia article on the subject of the "Antarctic ice sheet" says that: The icing of Antarctica began in the middle Eocene about 45.5 million years ago and escalated during the Eocene–...
1
vote
1answer
71 views

Help understanding radar data in subglacial lake complex beneath Devon Ice Cap

The BBC News article Isolated lakes found beneath Canadian ice sheet links to the open access Science Advances article Discovery of a hypersaline subglacial lake complex beneath Devon Ice Cap, ...