How much longer, for instance, can we continue to crowd more and more people into this world? How much longer can we afford to wage senseless, destructive wars? How long can we permit the uncontrolled use of the earth's resources when there is no possibility of replacing them? Indeed, how long will it be before we have completely used up everything our lives depend on? These issues are the politics of the future. Neither Republicans nor Democrats have begun to spell out in substantive fashion the means by which we can control population growth, environmental problmes, and the conservation of our natural resources.