Deciding between organic or conventional produce is one of the many choices that consumers make when buying food. Is organic produce worth the extra cost? Is it healthy and good for the environment? This case study challenges students to gather evidence defending both organic and conventional farming. The case begins with a story in which customers at a farmers market talk to an organic and a conventional farmer. After reading the story, students in small groups use online resources to investigate claims about the environmental and health benefits of each farming practice. Students then use the structured method of “intimate debate,” taking turns defending both organic farming and conventional farming. In addition to applying ecological concepts such as competition and nutrient cycling to agriculture, this case study also helps students learn how to identify bias in online resources and engage in civil, substantive conversation about environmental problems. The case was designed for college students in an introductory biology course to reinforce scientific thinking near the beginning of the semester or at the end of the ecology unit to reinforce ecological connections.