An introductory survey of the atmospheres of Earth and other planets, spanning diverse phenomena such as hurricanes, drought, Martian dust storms, and the exotic winds on planets orbiting other stars. This course introduces the basics of planetary weather and climate, showing through exploration of a diverse set of atmospheres and paleoclimates that the world around us need not always be the way we currently observe it. Topics include atmospheric composition and structure, planetary orbits and radiation, habitability, global patterns of wind, clouds and precipitation, prediction of weather, chaos theory, and vortices such as tropical cyclones, tornadoes, and Jupiter�s great red spot.