Climate change is widely taught in schools and colleges, and its causes and potential impacts are discussed in numerous publications. However, few school books ever speak of a climate 'crisis'. Yet a crisis it truly is. Geography and geographers play a key role in developing an understanding of the climate crisis, from its causes to the risks it poses and the current and possible future impacts. This book offers a view of the crisis: its origins, the main drivers, its impacts, and some proposed solutions. Among other things, it explores the meaning of a climate 'crisis'; discusses how the concept has arisen as scientists gain increasing confidence in the data signalling dramatic changes in global climate systems; examines the causes of the crisis and assesses the impacts, both now and in the future; and considers why the nature of the crisis is complex, and how any solutions may need to be radical, e.g. in energy production and use.