In recent years, the concept of "peak oil"-the moment when global oil production peaks and a train of economic, social, and political catastrophes accompany its subsequent decline-has captured the imagination of a surprisingly large number of Americans, ordinary citizens as well as scholars, and created a quiet, yet intense underground movement.

In Peak Oil, Matthew Schneider-Mayerson takes readers deep inside the world of "peakists," showing how their hopes and fears about the postcarbon future led them to prepare for the social breakdown they foresee-all of which are fervently...