Graham Hill discusses becoming a weekday vegetarian as a compromise between being an omnivore and full vegetarian. He was concerned about the environmental impact and treatment of animals in factory farming. Going vegetarian Monday through Friday allows one to reduce their environmental footprint and feel better about consuming less animal products while still enjoying meat on weekends. If many people adopted this approach of reducing their meat intake by half each week, it would have a significant positive impact on reducing pollution and resources used for meat production.