Geoscience focuses on the study of subjects related to the earth. Your duties as a geoscientist may include studying geology, oceanography, volcanology, seismology, soil science, geophysics, or geochemistry. The responsibilities of some geoscientists include working to understand the atmosphere, climate, or natural resources, such as petroleum or precious metals. Any job that focuses on understanding, analyzing, or interpreting the physical characteristics of the earth is a geoscience career. You can also focus on studying past planetary conditions or making forecasts about the future.