There are quite a few very large western states that have been draining the Ogallala Aquifer dry over the past century with wheat farming. Before mass-mono-crop agriculture took over the west Native Americans relied on this aquifer for thousands of years without putting it at any risk of drying up. Hemp crops don't burden the farmer with the same irrigation (or pesticide/herbacide) needs as wheat fields. Hemp can be grown practically anywhere without irrigation or chemical help. While wheat bread is an important staple food on practically everyone's kitchen table, hemp bread is even better. Hempseed contains all the essential amino acids to form a complete protein. Grains such as wheat and rice need to be combined with legumes in order to provide a complete protein. While hempseed is feeding the nation and the world, the whole plant could be used for superior quality paper, clothing, rope, and most importantly, fuel. Methanol and bio-deisel can both be made from hemp.
Industrial, non-psychoactive hemp can be grown in all 50 states and, if every farmer and every citizen could be allowed to grow it, it could mean the start of magnificent opportunities ranging from very poor people supplementing their protein intake from their own back yards to reducing our nation's dependence on foreign oil. Generators could be made to fit the new breed of electric cars that would re-charge the batteries quickly on racing fuel (methanol).