This subject takes the earth system as the subject, imparts relevant scientific and mathematical knowledge, and establishes a solid academic foundation for students. The course focuses on the study of the atmosphere, biosphere, lithosphere and hydrosphere, the relationship between the spheres, and the impact of human activities on each sphere. This course specially sets up the "Atmospheric Science Group" and "Geophysics Group" to expose students to relevant topics and cutting-edge research, and provide them with opportunities to acquire quantitative and analytical skills. Students can use laboratory work, numerical simulation and programming experience, seminars and research projects to improve their research ability and acquire career-related skills.