Written by a transdisciplinary group of researchers, this book explores the future effects of greenhouse gases and atmospheric emissions on our climate. While these emissions are projected to be slow, their effect on the climate and our society could be abrupt and erratic. Entries cover the implied effects on ecosystems, ice sheets, and metropolitan New York; stabilizing the climate in a “moral and profitable way” also is discussed. MacCraken is chief scientist for Climate Change Programs with the Climate Institute in Washington, D.C.