Climatology, the study of climate, is no longer regarded as a single discipline that treats climate as something that fluctuates only within the unchanging boundaries described by historical statistics. The field has recognized that climate is something that changes continually under the influence of physical and biological forces. The book begins has an overview of climatology basics and discusses climatology and meteorology in depth. It is a comprehensive guide to the nature of the earth's climate and presents a synthesis of scientific ideas about atmospheric circulation. The book ensures that students with little background are able to grasp complex subject matter without losing the depth and rigor required of upper-level courses. With its fresh style and present-day approach, this book is a comprehensive and accessible text for all advanced climatology courses.