Labor leader César Chavez helped ban DDT. Truckers are helping address appalling asthma rates at the filthy port of Los Angeles. And inner-city clergy, not suburbanites, led the latest victory against the big-box WalMart stores sprawling over community open space. Unlikely allies? Environmental justice and labor leaders Manuel Pastor, Maria Elena Durazo and Rev. Alexia Salvatierra show us that in a truly sustainable economy, everybody is an environmentalist—and a healthy environment depends on economic justice.