When the St. Lawrence Cement Company proposed building a massive coal-powered cement plant near the banks of the Hudson River in the town of Greenport, New York, in 1999 it ignited a controversy that dominated the discussion of community development in the entire Hudson Valley region. Stopping the Plant is a fascinating and detailed chronicle of how the proposal fired the passions of many local citizens, spawned the creation of numerous activist groups, and over the next several years spread to become a raging dispute throughout the Northeast. Miriam D. Silverman provides a thorough and balanced exploration of the positions of both sides of this highly polarized dispute, while at the same time places the controversy within a greater historical and regional context. For anyone interested in community organizing, the potentials and difficulties of modern grassroots environmentalism, and, ultimately, the future of the environmental movement, Silverman emphasizes the significance of the decision by St. Lawrence Cement to withdraw its application in 2005.