This document provides an introduction to green eating, including defining key terms like sustainability, food systems, carbon footprint, and biodiversity. It explains that food choices have environmental, social, and economic impacts. There are differences between industrial and alternative food systems, with industrial systems focusing more on profit and mass production using fossil fuels, while alternative systems emphasize shorter distances from producers to consumers using smaller farms. The principles of green eating that will be covered in subsequent modules include eating locally, emphasizing a plant-based diet, and choosing foods that are fair-trade, cruelty-free, and organic.