What seems evident is that that these events appear to be global, and at the very least hemispheric, in that it appears that trees around the world all respond poorly at the same time. Bristlecone pine for example grows at high altitude in California, and it shows frost rings and poor growth during the 1159 BC event. The 1628 BC event is very prominent in the bristlecone pine data, so much so that it was this data that first spawned the idea that 1628 (+/-) BC corresponded to the Thera erruption (despite no other evidence).


Jonny


The path to good scholarship is paved with imagined patterns. - David M Raup