The sucking out of groundwater to feed the Central Valley is literally sinking the land:
If there were ever a break between the Pacific Ocean and the Central Valley, most all of Los Angeles would flood, the Central Valley would be inundated, and Death Valley will fill to an inland sea. Of saltwater. A large enough earthquake could shift the plates and make this happen. There is evidence that Death Valley was once ocean.
so HOW does this help your argument?
the east has plenty of free water falling from the sky as well as abundant surface waters and great aquifers to tap with wells
this is my point; of course cali has some very fertile soil...so does most of north africa and the arabian peninsula. i mean its amazing what a little water can do to places in saudi where it is piped in. but that is the flaw--great soil because it has not been able to grow wild plants for so many yrs that would have tapped the nutrients out of it
the only reason why mass ag in the east is not being done now is because-for now- cali and fla and texas are cheaper places to grow stuff. not because of water; labor is a big part of it
also, over last 100 yrs, many farms in the east were abandoned, returned to a wild state, paved over or had golf course and housing developments on them
the land was more valuable for that then
Cali was designated a bread basket and there were not that many ppl living there then. then that changed mid century. the demand for water has become more and more elevated ; man vs ag vs natural needs (rivers salmon runs ,etc)
there are huge swathes of land in the east that could be put back to ag at an intense level if it would get the backing of BIG FOOD inc and its distribution systems
PA alone produces tons and tons of fresh fruit and veg every yr, it does not get "counted" though as so much of it is independently produced and sold locally through farmers markets or to local groceries and regional food supply systems as "local purchases" and not through the official system
the same conditions exist throughout the north east and the whole east coast. one of the leading yr round producers of fresh, vine ripened tomatoes is in Ontario CA
that -incidentally, is one of the main reasons the eastern dairy industry-once fed mainly by family farms, has collapsed
not because the cows couldn't make milk or the farmers stopped milking but because the companies that made the truck runs to pick up the milk found it more profitable to get their raw milk from industrialized farms.
the east is not used because no one big enough is pushing for it to be used-yet