Browse Items (2 total)

Dick Rowan, Sierra Club Nature Hike, National Archives, May-72

The Sierra Club, the largest grassroots environmental group in the United States, was founded in 1892 by environmentalist John Muir. They are…

Tags: CAA, Conservation, Environment, Grand Canyon, National Parks, Nature Hike, NEPA, Sierra Club

John Alexandrowicz, Pollution Sign, John Alexandrowicz, Apr-73

This sign was on a gas station door across from a United States Steel Corporation Coke Plant in Clairton, PA. Prior to this, the Plant had been found…

Tags: Anti-Pollution, AQI, CAA, Clean Air Act, Emissions Limits, NAAWS, PSD