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November 30th, 2010 Over the last two decades, small- and medium-scale livestock farms have given way to factory farms that confine thousands of cows, hogs and chickens in tightly packed facilities. Farmers have adopted factory-farming practices largely at the behest of the largest meatpackers, pork processors, poultry companies and dairy processors.
Factory Farm Nation: How America Turned Its Livestock Farms into Factories
Over the last 10,000 years, human populations have grown rapidly. This has resulted in increased pressure to produce more food with the same amount of land.
Patterns of Subsistence: Comparisons
Intensive agriculture is the primary subsistence pattern of large-scale, populous societies. It results in much more food being produced per acre compared to other subsistence patterns. Beginning about 5,000 years ago, the development of intensive farming methods became necessary as the human population grew in some major river valleys to levels beyond the carrying capacity of the environment using horticulture and pastoralism.
Patterns of Subsistence: Intensive Agriculture
Pastoralism is a subsistence pattern in which people make their living by tending herds of large animals.
Patterns of Subsistence: Pastoralism
