Malthus' life's work on human population and its dependency on food production and the environment was highly controversial on publication in 1798. He predicted

This book is a compilation of population-based research on the relationships of religion to family life and health.

By 2100, the human population may exceed 11 billion. Having recently surpassed 7.5 billion, it has trebled since 1950. Are such numbers sustainable, given a dee

Finalist for the Hugo Award • “Ofelia—tough, kind, wise and unwise, fond of food, tired of foolish people—is one of the most probable heroines science f