Earth Science is the study of the structure, composition, and evolution of the Earth and terrestrial planets, including all aspects of the solid Earth, hydrosphere, atmosphere, and biosphere. It involves the application of basic physical and biological sciences to phenomena as diverse as the formation of mountain chains and the evolution of life. Our program emphasizes quantitative understanding of the processes that have governed Earth's evolution, including its internal structure, surface sculpture, life’s complexity, climate variation, and ocean dynamics. Advanced courses provide the foundation for professional careers in geology, hydrology, paleontology, oceanography, climate and environmental sciences, and many other fields. An earth sciences background also offers a rich complement to courses of study leading to careers in policy, law, education, and the media. We encourage students interested in any aspect of our planet’s physical, chemical, or biological makeup to take a class in our department and see where it takes you!