Books by William H. Calvin

Every decade since 1950 has seen more floods and more wildfires on every continent. Deserts are expanding, coral reefs are dying, fisheries are declining, and hurricanes are strengthening. Global warming has made the Earth sick. This book delivers a diagnosis and a prescription.

The earth's climate changes abruptly every few thousand years, with breathtaking speed, cooling the climate worldwide. For most mammals this has a devastating effect on population. This volume argues that the cycle has instigated the increase in brain size and complexity of human beings.