"The twentieth century witnessed the globalization of the world energy economy as the entire world came to depend heavily on a handful of countries for oil, many of them in one region of the world. This century will witness the localization of the world energy economy as countries begin to tap their indigenous resources of renewable energy.
"The localization of the energy economy will lead to the localization of the food economy. For example, as the cost of shipping fresh produce from distant markets rises with the price of oil, there will be more local farmers’ markets. Diets will be more locally based and seasonally sensitive than they are today.
The combination of moving down the food chain and reducing the food miles in our diets will dramatically reduce energy use in the food economy.
"As agriculture localizes, livestock production will likely start to shift from mega-sized cattle, hog, and poultry feeding operations. There will be fewer specialized farms and more mixed crop-livestock operations. Feeding operations will become smaller as the pressure to recycle nutrients mounts with the depletion of the world’s finite phosphate reserves and as fertilizer prices rise. The recent growth in the number of small farms in the United States will likely continue. As world food insecurity mounts, more and more people will be looking to produce some of their own food in backyards, in front yards, on rooftops, in community gardens, and elsewhere, further contributing to the localization of agriculture."
Lester Brown, Plan B 4.0, p. 140