This post is Reblogged from JUDITH CURRY
Explaining? abrupt climate change
Tallbloke has a lively forum going on this as well
The focus is mainly discussion on
Dansgaard-Oeschger events that occurred every 1–2kyr.
(cycles around the 1400-2000 yr) but there is also discussion of other cycle lengths
by Judith Curry
. . . suggesting that Dansgaard-Oeschger events resulted from a combination of the effects of sea ice and ice shelves—structures that help define the margins of ice sheets—to account for both the rapid and the slower parts of the cycle.
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