Lecture, three hours. Overview of processes that determine dynamics of Earth system and contribute to its change including global and meridional energy balance; radiative-convective equilibrium; surface processes; planetary boundary layers; global atmospheric circulation; hydrological cycle; global ocean circulation; El Niño--Southern Oscillation and other climate variability modes; paleoclimate; climate sensitivity; climate variability and change; Earth's carbon cycle (atmosphere, ocean, land), and space physics. S/U or letter grading.