A crash course in changing the world.
I am from Texas, which most people probably associate with huge, inefficient cattle ranches. Luckily, the state has a relatively low population density in both in rural and urban areas, which bodes well for localized food production whenever the mentality swing sets in.
In the urban scenario, Austin is a great model to follow in terms of initiating community gardens and supporting local agriculture:
These example could spread to Dallas/Forth Worth, Houston, and San Antonio, all of which have enough open area to spark local urban food production. While the amount of food produced might be miniscule, the psychological benefits would be invaluable. By allowing individuals greater contact with the food life cycle it would undoubtedly help the centers of political power buy into the idea of reducing food imports and increasing local and regional productivity.