The topics of global warming and climate change are currently being discussed widely in all modes of media. Not a day passes when there is no coverage of these topics. Associated with them are the topics of increasing concentration of greenhouse gases, carbon dioxide emissions caused by fossil fuels, reduction of emissions, renewable energy generation, sustainability of the earths limited resources, and so on. The issues involved are complex. Even though a very large majority of the climate science community agrees on the causes of climate change, differing views do exist on ways to mitigate its adverse effects. Climate change is expected to influence the work done by actuaries. The purpose of this Book is to provide some background on the science of climate change, its impacts, key ways to minimize the damage and the roles that the actuarial profession can play in dealing with the risks. It is hoped that the book will prompt discussions on the topics of climate change, resource sustainability and risk management and will encourage members of the CIA to present more books on these issues.