I am an environmental anthropologist who studies food and agriculture systems in South Asia, Eastern Europe, and North America. Food and farming are starting places to ask fundamental questions concerning how we learn about the world around us, how we come to shape the landscapes where we live, and even what impact our culture has on the microscopic worlds within us. To study these issues and examine the changing social and ecological worlds where we live, I use a social science toolkit that includes ethnography, spatial analysis, interviews, surveys, ethnobotany, and photography. Environmental knowledge, and the relationships and affects that continually shape it, grow within a larger political context that includes everything from biotechnology to microbial legislation to ethical supply chains. I think of seeds and microbes as heuristics to explore how we shape and are shaped by the social, political, economic, and ecological worlds around us.