A well researched and cleanly written survey of the current state of knowledge and action concerning global warming and climate change. The book explores the topic from many different perspectives including political, economic, personal, with a focus throughout on the growing scientific body of knowledge. A key concept throughout the book is the dual roles of adaptation (reducing our vulnerability to climate change) and mitigation (reducing our emissions). The book addresses the potential gloom and doom if the world doesn't address the issue but also presents change communities are already making and a Green Apollo proposal of how to make a great leap forward. The author's repetitive use of sound-byte phrases like "avoid the unmanageable, manage the unavoidable" throughout the book is one of my biggest gripes in an otherwise wonderful book.