By keeping even one square inch 100 percent free of noise, or at least attempting to do so, I am able to push back aircraft for many miles and help to preserve natural quiet over much of the entire park. Natural quiet, like clean air and clean water, is part of a delicate ecosystem. So when man-made noise intrudes in the wilderness, the equivalent of crackling static on the phone line of all creatures but man, it impairs the ability of animals to communicate.

Gordon Hempton, John Grossmann, One Square Inch of Silence-…, loc. 74