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11 votes
3 answers
5k 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 ...
ravenspoint's user avatar
10 votes
4 answers
450 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–...
neo's user avatar
  • 211
7 votes
2 answers
1k 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, ...
uhoh's user avatar
  • 6,904
1 vote
1 answer
94 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, ...
uhoh's user avatar
  • 6,904