Metropolitan Edison Co. v. People Against Nuclear Energy

Background

A power company sought permission from the Nuclear Regulatory Commission to restart a shutdown reactor at Three Mile Island after a nearby reactor accident raised public alarm. A local group of residents, People Against Nuclear Energy (PANE), said reopening the plant would cause severe psychological harm and damage community stability. The NRC declined to take evidence on those claims and relied on existing environmental reviews; a federal appeals court told the NRC it must evaluate the alleged psychological effects, and the Supreme Court agreed to review that ruling.

Reasoning

The key question was whether NEPA requires agencies to consider harms that arise from the perception of risk rather than from a direct physical change in the environment. The Court said NEPA focuses on effects closely tied to the physical environment and requires a reasonably close causal link. Because the alleged injuries arose from an unrealized risk and its perception, the causal chain was too attenuated. Extending NEPA to such claims would force agencies into broad psychiatric inquiries beyond the statute’s purpose.

Real world impact

The decision means federal agencies do not have to prepare environmental statements for harms that flow only from fear or perceived risk of accidents. Agencies will continue to study direct physical environmental effects and realized accident consequences, but they need not evaluate generalized stress or community distress caused solely by the perception of risk. The ruling reduces the scope of inquiries and the need for psychiatric expertise in routine environmental reviews.

Dissents or concurrances

Justice Brennan concurred, agreeing psychological injuries can be covered by NEPA in some cases but that these particular claims, based on perception of risk rather than direct environmental change, were outside NEPA’s reach.