Are you honestly asserting that a warming climate was the cause of the Bronze Age collapse without addressing 1177 BC and the migration of the Sea Peoples at all while insinuating that Egypt collapsed (it did not -- it went through hard times, but came through, and its the closest thing to a contemporary historical record we have)?

The sudden influx of nations on the march threw a spanner in a complex network of trade and intermarriage for regional stability. We have *zero* real idea why the Sumerian civilization was supplanted, or even where it originated from for that matter. Was it a language isolate because semitic groups became demographically dominant through natural causes? Were the Sumerians transplants from somewhere else? Did the Akkadians, Assyrians, and Neo-Assyrians rigorously stamp out ethnic groups? Zero idea.

It doesn't bode well for your position that you appear to be ill-informed also, and that you're asserting that a blip (because agriculture had no problems coming back to Mesopotamia after we have a reliable historical record again) in the climate also caused every other civilization in the Levant to collapse rather than 'we have a fragmentary historical record of the death throes of those civilizations against unknown invaders who pushed out (in the Levant) from a geographical position which happened to also serve as the transit corridor for trade, diplomatic communication, etc?", along with evidence for civil unrest, natural disasters, and a large number of factors which are merely contributory factors to a complex situation.

Honestly, please go read 1177 BC.