I seem to remember a small body of water less than 100 miles west called the Pacific Ocean.
>>>>>>>>>>>>>>>>>>
Exactly. Irrigation hardly puts out enough climactic moisture tio compete with the sweat on an India Elephants Arse.The Ocean is the major driver along with general wind direction, and the sun.
These envirinmentalists are like a male mouse floating down the river laying on a shingle with a hard on, yelling , “ RAISE THE DRAWBRIDGE!”
Its beyond ludicrous.
The way most of the farmers in that area irrigate is with impact sprinklers. There is a great deal of loss on a windy day, which is usual. Between that and the evaporation off the leaves the farmer loses 15% of what is ejected from the nozzle. Considering the acreage, that's a lot of water.
The greenies will blame the farmers for the persistence of Bromus madritensis in that Mojave region as displacing native wildflowers, seeing as they haven't a either the clue or the inclination to do anything effective about it.