Earth System Science examines the interrelations of the lithosphere (solid Earth), hydrosphere (water, including oceans), biosphere (life), and atmosphere (air), recognizing the influence of human beings as agents of change. Students will obtain a scientific understanding of Earth systems through courses in geology, geography, biology and chemistry as well as an understanding of humans' relationship to the Earth through courses in the social sciences, including conservation, economics, and urban planning. With an understanding of the interrelations of the physical realms of the Earth, graduates will be prepared to develop solutions to help human beings use the Earth and its resources more wisely.