The Dead Sea sediment core project is beginning to throw up some interesting data – see http://phys.org/print264850489.html … or www.pasthorizonspr.com/index.php/archives/08/2012/researchers-study-dead… … pollen analysis at different levels of the core reveal some rapid changes from moist conditions to a dry environment. These occurred way back in the Neolithic, at 7500 years ago. However, something similar happened at the end of the LB age, around 3200 years ago. So far, nothing not already known has been found – it has simply confirmed big changes already catalogued elsewhere, using different data. The paper is published in Quaternary Science Reviews 49 (Aug 2012) dx.doi.org/10.1016/j.quascirev.2012.06.012
The press release, for some reason, is more concerned with the Biblical Exodus event that in the actual science laid bare – and jumps to the conclusion it has something to do with the end of the LB age. Consensus historical chronology still wags the tail of the beast.