The ice core ash in Greenland doesn’t match Thera, it’s probably from Arctic North America.
Thanks for the heads-up. I had heard about the ash from Thera being found on Greenland from some Aegean Bronze Age specialists and wasn’t aware of the more recent work rejecting that—I found something from 2003 by Douglas J. Keenan (published by the American Geophysical Union). He sounds like he knows what he’s talking about (I need to find an English translation—it’s in Geologese)...but I’m suspicious of anything put out by a union.