Environment

agricultural air pollution amount animals aquatic areas atmosphere bacteria biological diversity cancer carbon dioxide cause Chapter chemicals climate coal conservation consumers consumption contains cost crops currently cyanobacteria damage decline developing countries dioxins Earth ecological economic ecosystem ecosystem services effects electricity emissions endangered energy environment environmental problems ergy erosion example federal fertility Figure fish fossil fuels genetic global warming groundwater habitat heat highly developed countries increase industrial insects Lake Lake Washington land landfills live marginal cost million minerals National Park natural gas nitrogen nitrogen oxides nuclear power nutrients occur ocean organisms oxides ozone pesticides pests photosynthesis population growth potential power plants produce protect radiation radioactive rain forests recycling reduce risk River Science scientific scientists sewage soil solar solid waste sources species sulfur sulfur dioxide surface temperature tion toxic trees tropical United wetlands wildlife