- GEO 207 – A Guided Tour of the Solar System
- GEO 361 -- Earth’s Atmosphere
- GEO 362 -- Earth History
- GEO 363 -- Environmental Chemistry: Chemistry of the Natural Systems
- GEO 364 – Earth Chemistry: The Major Realms of the Planet
- GEO 367 -- Modeling the Earth System: Assembling Strategies for Mitigating Climate Change
- GEO 369 -- Environmental Materials Chemistry: Researching in Field and Laboratory
- GEO 371 / PHY 371 -- Global Geophysics
- GEO 372 -- Rocks
- GEO 376 -- The Physics of Glaciers
- GEO 417 / CEE 417 / EEB 419 -- Environmental Microbiology
- GEO 425 / MAE 425 -- Introduction to Ocean Physics for Climate
- GEO 427 – Fundamentals of the Earth’s Climate System
- GEO 428 – Biological Oceanography
- GEO 442/ PHY 442 – Geodynamics
- GEO 523 – Geomicrobiology