james_davis_nicoll: (Default)
james_davis_nicoll ([personal profile] james_davis_nicoll) wrote2016-02-29 05:52 pm
  • Previous Entry
  • Add Memory
  • Share This Entry
  • Next Entry
  • Crossposts: http://james-nicoll.livejournal.com/5577836.html

Ice doom of DOOM!


The previous ice age lasted some 110,000 years and ended about 11,000 years ago. In other words, some 4,000 generations of humans knew of nothing but harsh winds and eternal snows. The apparently "normal'' periods between ice ages, like the present one, have averaged between 8,000 and 12,000 years. In short, the next ice age is overdue. The key question is when it will come. Can space be colonised by a sufficiently large population so that, when the next ice age strikes, it will not threaten the survival of the race?




  • 73 comments
  • Post a new comment
Flat | Top-Level Comments Only

no subject

[identity profile] calcinations.livejournal.com 2016-03-01 06:29 pm (UTC)(link)
If you read old textbooks, such as those by Arthur Holmes, they knew the problem, and had an idea of the solution, but Wegener's mechanism was horribly wrong, verging on the stupid, and they had nothing to replace it with, so being scientists, they had to wait until someone came up with a decent mechanism.
  • Thread
  • Reply to this
  • Thread from start
  • Parent

  • 73 comments
  • Post a new comment
Flat | Top-Level Comments Only

[ Home | Post Entry | Log in | Search | Browse Options | Site Map ]