Radiation in the atmosphere: Photochemistry, heating and cooling. Atmospheric radiation balance: top of the atmosphere, global, surface. Structure of the atmosphere and atmospheric circulation: troposphere, stratosphere, mesosphere. Large scale oscillations and teleconnections. The climate system, climatic variations and sensitivity. Greenhouse effect: changes in energy balance (natural and anthropogenic) and radiative forcing. Natural variability and changes: volcanic and solar activity. Ozone as a climate gas. Introduction to boundary layer physics and meteorology. Introduction to atmospheric models.