Significant Environmental Legislation Post-1980

In the late 20th and early 21st centuries, environmental concerns became increasingly prominent in American politics and society. A major turning point was the establishment of the Environmental Protection Agency (EPA) in the 1970s, which played a crucial role in setting regulations to protect air and water quality. In 1988, the United Nations established the Intergovernmental Panel on Climate Change (IPCC), emphasizing global responses to climate-related issues. Within this context, which of the following initiatives is considered a significant response by the U.S. government to address environmental concerns after 1980?