Agricultural Revolutions

Agricultural Revolutions…

were a geographically uneven process

First Ag. Revolution Innovation

Control of the seed

first ag revolution social importance

sedentary lives, urbanization, emergence of human civilization

second ag revolution innovation

knowledge of fertilizers, plow more fields

second ag revolution social importance

creates a commercial market for food

third ag revolution innovation

simple mechanization

third ag revolution social importance

less farming labor needed, introduced global food market

Green revolution

modern, industrial ag we have today

monocropping

efficiency of scale, mass producing one crop

outcomes of green revolution

everything mechanized, chemicals fertilizers and pesticides, hybrid seeds, massive irrigation projects, GMOs

crops that feed the world

wheat, corn, rice

GMOs

any organism that has its DNA modified in a laboratory rather than other forms of evolution

Synthetic pestides…

are known carcinogenics and are harmful to human health