This course examines how the components of Earth (biosphere, hydrosphere, lithosphere, atmosphere) combine to affect how nutrients cycle through and between these components.  This understanding forms the basis of the field of biogeochemistry.  We also examine related environmental issues such as climate change, aquatic nutrient pollution (eutrophication) and mitigation, and acid rain.  We also examine how the major nutrients move through different ecosystems (lakes, oceans, wetlands, forests, etc.).