The World Inside by Robert Silverberg

In his bestselling 1968 book The Population Bomb, biologist Paul Ehrlich warned of imminent social unrest and mass starvations due to the out-of-control birth rate. On the opening page of his book, Ehrlich declared: "The battle to feed all of humanity is over. In the 1970s hundreds of millions of people will starve to death in spite of any crash program…