Are the glaciers responding primarily to climate changes of the last 30 years, or to the post Little Ice Age conditions? (nichols.edu)
The flipping to and from Ice Age conditions is an example. (www-das.uwyo.edu)
And of course when that big meltwater lake broke and dumped down on the Gulf Stream it brought it to a halt for ten centuries sending us back into near ice age conditions for 1000 years. (jennifermarohasy.com)