While debates about the state of the global environment rage on many fronts, it is often hard to get a perspective on the dimensions of the challenges we face. Just how serious are our environmental problems? And are we doing enough to deal with them? How many people can the planet sustain? What are the long-term effects of continued environmental damage? How fast is the process of global warming? What are the implications of our continued dependence on fossil fuels? How much fresh water is available and how long will it last? The Little Green Handbook is a unique reference work that draws together scientific evidence across a range of inter-related fields to present a clear, and often alarming, picture of the state of the planet. Dr Ron Nielsen persuasively argues that radical action is needed to avoid catastrophic consequences.