Part I Environmental problems and scientific principles: environmental problems, their causes, and sustainability; critical thinking - science, models, and system; matter and energy principles. Part II Ecological principles: ecology, ecosystems, and food webs; nutrient cycles and soils; evolution and biodiversity - origins, niches, and adaptation; geographical ecology - climate and biomes; aquatic ecology; community processes - species interactions and succession; population dynamics, carrying capacity, and conservation biology. PART III Human population, resources, and sustainability: human popluation - growth, demography, and carrying capacity; food resources; water resources; mineral and soil resources; nonrenewable energy resources; energy efficiency and renewable energy sources. Part IV Environmental quality and pollution: risk, toxicology, and human health; air pollution; global warming and ozone depletion; water pollution; pesticides and pest control; solid and hazardous waste. Part V Land use, biodiversity, and conservation: sustaining ecosystems - land use, conservation, and management; sustaining ecosystems - deforestation, biodiversity, and forest management; sustaining wild species; sustainable cities - urban land use and management. Part VI Environment and society: economics and environment; politics and environment; environmental worldviews, ethics, and sustainability.