About as fast as the earth turns, we are increasing the number of people who live on it. For the first time in history we may be guilty of preempting the future by our egoistic need to multiply ourselves. Destroying ourselves in wars, through air pollution, and by advertising cigarettes is one thing (at least in that endeavor we leave space to be occupied, air to breathe, and food to eat). Now, by rampant reproduction we may actually consume the earth and leave nothing for future generations.
This book with its lucid presentation of the evidence of a growing crisis, a people-growing crisis, makes one wonder whether the fourth great shock to man's narcissism is upon him. The first was the Copernican demonstration that the earth is not the center of the universe nor even of its own little system; the second shock was Darwin's finding that man is a