The management of food resources, and the global pattern of food production and consumption to ensure the eradication of hunger, is one of the most pressing resource problems in the world. This text analyzes the impact of human induced physical factors upon the supply and adequacy of food produced, and moves on to discuss their implications for future agricultural output on a global basis. The book concludes with a discussion of the prospects and strategies for subtainable food production - the most important of these being the willingness and capacity of humans to modify their approaches to the use of the environment.