The author proposes that the democratic institution of laws promoting one-child families for 100 years is the only non-violent and fair solution to the economic and ecological problems now squarely facing us. As such the book presents a palatable alternative to the now-suspect "sustainable development" paradigm, and examines why such a proposal has not been made before. The book ends by assessing the justification for instituting and changing current "population law", both nationally and internationally.