Atmospheric physics is a fascinating application of physics that has been part of our daily life since the last century. An accurate daily weather forecast in the modern era relies not only on our intellectual understanding of the atmosphere, but also on the real-time monitoring and numerical modelling of atmospheric motions. Both of them are fruitful applications of atmospheric physics. In recent decades, there has been growing concern over human impacts on global climate. The wide-ranging claims of human-induced climate change have to be supported by scientific theories and evidence. Atmosphere physics plays a central role in such debates as the atmosphere is a core component of the climate system. This course offers both conceptual and quantitative discussions of the fundamental physical processes that shape our weather and climate.