I wholeheartedly agree with climate change (but not global warming). My concern is for the derivation of the result. What is a drought? No water? Less water than normal? I take the latter. No water for 200 years is unprovable nonsense, imo. And don’t pull out the geological strata samples stuff, which would have to be obtained over a wide region to claim a drought that wiped out (deeply impacted) a people. I just can’t buy it.
To the South there are two other rivers, one of them was observable in ancient times and was discovered only in modern times through the use of powerful space radar systems.
I know a guy who was present when that happened ~ yes, the other guys did that peculiar Jewish dance at the unveiling..... it is named in Genesis.
The Sumerians were herdsmen ~ and, if that tablet is correct, they raised grain as well ~ so they were doing some irrigation from the Euphrates. It could stop raining further North with no effort at all ~ in fact, during the LAST interglacial before this one (circa 120,000 years ago) that area was also desert. We are fortunate that this time the desert is smaller.