Food miles refer to the distance that food travels before it reaches the consumer. Depending on the production process and sustainability policies applied, some are seeking alternatives to reduce the distance. "Mileage of Food Production" can replace food miles. "Carbon footprint" also represents the amount of greenhouse gas emissions generated by the food production process, which is an important aspect of sustainability. "Locavore" is a person who prefers to eat local food and could be used to describe the movement as a whole. Finally, "proximity-based food choices" represents the concept of choosing food that was grown or produced closer to where it will be consumed.