re: #28 avanti

On that subject, a ice island four times the size of Manhattan just broke off Greenland:

New ice island.

It won’t be the last. There’s a good case that we’ve already reached and passed a tipping point with respect to Greenland. That ice cap is going to lose the better part of its mass over the next three centuries. How can it hold out, when it’s already losing mass, and when the future holds a month or so of passably ice-free Arctic ocean? The Arctic sea will always be cold, but it won’t be as cold as it now is, much less as cold as it was a century ago. Warmer seas mean quicker loss of ice off the cap.