What are the major agricultural hearths of the world? What is the relationship between plant and animal domestication, food production, and cities? What happened during the Columbian exchange? What are the positive and negative results of this exchange? How would the history of humanity be different if the eastern and western hemispheres had never interacted? What are the benefits and consequences of the Green Revolution? And of the changes to agriculture that occurred in the United States during the 1950s/1960s? How can we learn from the past to feed the extra 2 billion people who will join the planet in the coming decades? The USDA defines food deserts based on a combination of low-income populations and distance to a grocery store within a census tract. Do you think this is a good way to define a food desert? What other variables or characteristics would you include in the definition? How might what constitutes a food desert vary between urban and rural areas? What is a CAFO? What are the healthy consequences, both direct and indirect, associated with the increase in meat production taking place in CAFOs? How does the nutrition transition interact with the demographic, mobility, and epidemiological transitions? Record your food consumption over the course of a week, then categorize your food intake into categories such as grains, meat, dairy, and processed food. What phase of the nutrition are you in? How do you interact with the industrial food chain? How does the price of food differ from its cost? How can you internalize the externalities?.