A growing number of scientists, conservationists and grassroots environmentalists have come to regard beavers as overlooked tools in the effort to reverse the disastrous effects of global warming and worldwide water shortages. View these industrious rodents, once valued for their fur or hunted as pests, in a new light through the eyes of this novel assembly of beaver enthusiasts and “employers” who reveal the ways in which the presence of beavers can transform and revive landscapes.