The Enduring Legacy of Paul Ehrlich and the Politics of Scarcity
When Stanford biologist and science writer Paul R. Ehrlich died last week at 93, obituaries acknowledged his fame stemmed from the bold claims in his 1968 best-selling book, The Population Bomb. Ehrlich’s predictions of imminent planetary doom captivated the public but did not come to pass. Despite this, his work gave scholarly authority to a “politics of scarcity” that continues to influence American life.
The Core Argument of ‘The Population Bomb’
The Population Bomb popularized the concept that natural systems have limits – “carrying capacities” – and that exceeding these limits could lead to catastrophic consequences. Ehrlich believed the United States and the planet were in danger of reaching those limits if population growth wasn’t curbed. The book went through 22 reprints between 1968 and 1971 and Ehrlich made approximately 18 appearances on The Tonight Reveal Starring Johnny Carson during that period, reaching a vast audience.
From Butterflies to Environmentalism
Ehrlich’s early career focused on butterflies, earning a dissertation from the University of Kansas. He emerged during a period when environmentalism was embracing modern ideas about caring for the Earth. This new movement viewed nature not as separate from civilization, but as an interconnected web of ecosystems. Environmental crises of the 1950s and 60s – pesticide-related health problems, famines, acid rain, and oil spills – underscored the potential for industrial activity to disrupt these ecosystems.
The Idea of Scarcity
A fundamental principle of the emerging environmental movement was the idea that scarcity, like gravity, is a governing force on Earth. Proposals to avoid “collapse mode,” as outlined in the 1970 report The Limits to Growth, varied, with some advocating for international population control measures. Ehrlich himself explored controversial topics, including the prospect of involuntary sterilization if voluntary methods failed. He argued that the United States was “overdeveloped” alongside concerns about overpopulation in the developing world.
The Green Revolution and Shifting Realities
Even as Ehrlich wrote, circumstances began to change. The Green Revolution, introducing disease-resistant crops, helped reduce food shortages. Advancements in medicine, literacy, and access to contraception lowered poverty and unwanted pregnancies. Increased efficiency in developed countries meant devices like cars and appliances used fewer resources. Despite these changes, the politics of scarcity persisted.
The Politics of Scarcity Today
The politics of scarcity continues to manifest on both the left and the right. On the right, anxieties about immigration, particularly as seen in the rise of Trumpism, have roots in overpopulation discourse, though stripped of environmental pretense. Organizations like the Federation for American Immigration Reform, with ties to Ehrlich’s former organization Zero Population Growth (ZPG), and funding from sources also supporting population control groups, exemplify this connection. Paul R. Ehrlich once sat on the board of advisors for FAIR.
On the left, skepticism about economic growth’s compatibility with environmental protection, and resistance to dense housing and green energy infrastructure, echo Ehrlich’s concerns about America being “overdeveloped.” Even the growing number of young people forgoing children due to climate change concerns reflects a pessimistic outlook.
A Lasting Impact
The enduring influence of The Population Bomb’s scarcity mindset should prompt reflection. While Ehrlich proposed radical solutions, history demonstrates human ingenuity can overcome perceived limits. As The New York Times reported, Ehrlich himself acknowledged in 2009 that his predictions may have been “too optimistic about the future,” despite initially predicting catastrophic global famines that did not occur. The challenge lies in finding solutions that are both effective and aligned with broader civic values.