When did the cedars of Lebanon disappear due to the change in climate?
Apparently did not disappear due to climate change, but to over-harvesting with the British Railway virtually finishing them off in the head-long rush to lay track as fast as possible on wooden railroad ties. Today, only a few stands of these trees-of-kings are left, with the most impressive groves being near Bcharré in the northern Lebanon mountains and the Chouf Reserve in the south. Extensive reforestation of cedar is carried out in the Mediterranean region, particularly Turkey, where over 50 million young cedars are being planted annually. Sources: http://www.phoenician.org/cedars_of_lebanon.