Fifty years after the publication of Rachel Carson's Silent Spring, the book's legacy is mixed. It helped raise awareness about the costs of mass spraying operations, but it also provided justification for campaigns against the use of DDT in malaria control programs, which contributed to the deaths of millions in Africa and Asia.
Earlier in her writing career, she was a well respected nature writer, but in Silent Spring, she shifted to advocating positions linked to a darker tradition in American environmental thinking: neo-Malthusian population control and anti-technology efforts. Her background as a nature writer gave credence to these views and helped build those darker themes into mainstream environmentalism today. Many, such as the late Julian Simon, viewed this as a tragic turn.



Founded 30 years ago in Bozeman, Montana, PERC—the Property and Environment Research Center—is the nation’s oldest and largest institute dedicated to improving environmental quality through property rights and markets.
PERC’s publications, each designed to resonate with specific groups, move ideas generated at PERC to broader audiences.
Research is at the heart of PERC's work, with a focus on the question: What is the link between economic growth and environmental quality?
The goal of PERC’s programs is to fully realize the vision of establishing “PERC University,” where scholars, students, policy makers, and others convene to expand the applications of free market environmentalism.
PERC's fellowships share a common goal of exposing new scholars, students, journalists, and policy makers to free market environmentalism, as well as enable scholars already familiar with FME to explore new applications.
PERC continues to publish and present a broad range of research and discussion through podcasts, videos, and other multimedia channels.