The biologist Barry Commoner has been instrumental in shaping American environmentalism over the past fifty years. The breadth of Commoner's activism—against nuclear fallout and the synthetic productions of the petrochemical industry—marked a new direction for American environmental activism that sought to raise awareness about the kinds of technological decisions that were giving rise to an environmental crisis. Similarly, his concerns over air pollution, energy production, and waste management demonstrate that Commoner considered not just individual problems but also the larger systems that spawned them. Just as significantly, however, Commoner's activism introduced a new praxis that stressed the importance of an informed citizenry and a new relationship between experts and the public. Commoner invented the science information movement, a method of disseminating accessible scientific facts to the public so that they could participate in decision making. This essay seeks to situate his historical significance within the broader context of American environmental history. I outline Commoner's contributions in three related avenues: science, democracy, and environment. Commoner saw these three pillars of his activity not as independent aspects of his political sensibilities but as part of a single, intrinsic whole. That science, democracy, and environment should be so related is indicative of Commoner's deep-seated conviction that human societies, their politics and economies, and their physical environments functioned in larger, holistic systems. The intersections between science, society, and the environment that serve as the cornerstone of Commoner's career and work are not simply historical points of interest but remain vitally relevant to contemporary debates and struggles to address toxic contaminants, energy productions crises, and global climate change.
