The fact is that there appears to be an ocean driven cycle from MWP to LIA to the Modern Warm Period and we need to bridge the gap from your ENSO work to that longer term cyclical phenomenon. (wattsupwiththat.com)
Even subtle shifts in the Gulf Stream, linked to cyclical phenomena such as changes in winds around the North Atlantic, may condemn many to death in the Arctic, for example. (sciencemag.org)
For that reason, he's not overly concerned with what he sees as a cyclical phenomenon. (canadianbusiness.com)