What was the main focus of the environmental movement that emerged in the 1970s?

The environmental movement that emerged in the 1970s was primarily centered on the goal of protecting natural resources and reducing pollution. This period marked a significant shift in public awareness regarding environmental issues, spurred by events such as the publication of Rachel Carson's "Silent Spring," which raised concerns about the dangers of pesticides, and the first Earth Day celebration in 1970 that mobilized millions to advocate for environmental protection.

The movement aimed to address the growing concerns related to air and water pollution, deforestation, and the preservation of wildlife and natural habitats. Various legislative measures stemmed from this movement, including the Clean Air Act and the Clean Water Act, which sought to regulate pollution and protect natural resources for future generations.

In contrast, promoting consumerism, limiting immigration, and expanding urban development do not align with the core objectives of the 1970s environmental movement, which focused on sustainability and ecological preservation rather than economic expansion or demographic policies.