A cogent, urgent forecast of a future in which the human race will be outrunning its resources argues for the abandonment of political, racial and nationalistic concepts which limit the ""philosophy of plenty"" and for a consideration of the three elements which will make survival possible conservation, importation and substitution. Perhaps half of this book is an inventory of our current resources and the potential which remains- in energy, water, metals, food, forests, fish, land and wildlife. In the second half, he tours the world from continent to continent and surveys the problems of population as against subsistence always underlining the fact that there can be no longterm subsistence in a world divided. With the number of books which have already appeared on this problem, this may find a somewhat depleted market- but the need for a widening awareness is there and this is a hortatory survey of the situation. But who will read it?