Analyzing the interdependency of food, energy, water, land, and biological resources, this third edition includes material on livestock production and energy use, the impacts of pesticides on the environment, and the conservation of biodiversity in agricultural, forestry, and marine systems. It compares the energy inputs of crop production in developing and developed countries, covers the agricultural and environmental issues related to water resources, details the threat of soil erosion to food and the environment, and explores solar energy, biomass systems, and ethanol production.