An introduction to the looming world food crisis and the scientific basis governing our ability to sustainably meet it. The course explores the biological and environmental constraints on food production, the ways that agricultural science has dealt with these in the past and possible ways for the future, as well as societal and cultural issues, such as population growth, human health, education, and food definitions, that also impact food security. Intended for any student interested in these topics. Students may not receive credit for both this course and PLS 103.