American environmentalism, though rooted in its English history, grew out of the conservation work of President Theodore Roosevelt, and became environmentalism partly through the work of his sometime traveling companion, and Sierra Club founder, John Muir.
Morris (2001) describes a trip Roosevelt and Muir took in 1903:
"…Roosevelt lay high in Yosemite, on a bed of fragrant pine needles, looking up at the sky. On all sides soared the cinnamon-colored shafts of sequoia trees. He had the feeling that he was “lying in a great solemn cathedral, far vaster and more beautiful that any built by the hands of man.” Birdsong filled the arches as the sky darkened. He identified the treble tessitura of hermit thrushes, and thought it “an appropriate choir for such a place of worship.”
"His companion was John Muir, the glaciologist, naturalist, and founder of the Sierra Club. Since early youth, Muir had roamed Yosemite, carrying little more than “some bread and tea in an old sock,” returning to civilization as infrequently as possible. At sixty-five, he knew more about the park, and loved it more passionately, than any other American. Roosevelt had booked his exclusive services well in advance: “I want to drop politics absolutely for four days, and just be out in the open with you.”
"The President was disappointed to find that Muir had no ear for bird music. He was Wordsworthian rather than Keatsian, revering only “rocks and stones and trees.” Garrulous, erudite, and wall-eyed, he talked a pure form of preservation that Roosevelt was not used to hearing. He had no patience with the utilitarian “greatest good for the greatest number” policy of Chief Forester Gifford Pinchot, the President’s very good friend. Conservation favored business at the expense of nature, and property rather than beauty. “The ‘greatest number’ is too often found to be number one.”
"Whatever resonance such views found in the President’s own developing awareness of the “democracy” of national parks, he would have preferred to hear less of Muir and more of the hermit thrushes. Eventually he fell asleep, in the piney air. Another bird chorale saluted him at dawn.
"For the next forty-eight hours, the boy in Roosevelt, never quite suppressed, reveled in his wild surroundings. “This is bully!” he yelled, when Muir burned a dead tree for him and the sparks hurtled skyward. After another night out, he awoke at Glacier Point, and was intrigued to find himself under four inches of snow. “This is bullier!”
"On May 17 [1903] he came down from the peaks in dusty khakis, his eyes sparkling, “I never felt better in my life!” Muir, too, was elated, having confessedly fallen in love with the President’s “interesting, hearty and manly” personality. The substance of their camping conversations remained tacit, suggesting some philosophical difference on the subject of Gifford Pinchot. Muir won at least an immediate presidential order to extend the California forest through the Mount Shasta region, and a promise that Yosemite’s over-commercialized valley would be ceded back to the national park system. Roosevelt’s next conservation statement, on 19 May, was obstinately utilitarian, yet an eloquent plea later that day echoed the preservationist sentiments he had expressed at the Grand Canyon. Speaking in Sacramento, he begged Californians to preserve their “marvelous natural resources” unimpaired. “We are not building this country of ours for a day. It is to last through the ages." (Morris, E. (2001). Theodore Rex. New York: Random House. pp. 229-231)
However, it was the publication of Rachel Carson’s "Silent Spring" that created the story framing that propelled the environmental movement forward.
Her memorable opening pages, which framed the story in tragic terms, enlisting all in a great cause, became a paradigmatic anthem.
"There was once a town in the heart of America where all life seemed to live in harmony with its surroundings…Then a strange blight crept over the area and everything began to change…There was a strange stillness…The few birds seen anywhere were moribund; they trembled violently and could not fly. It was spring without voices. On the mornings that had once throbbed with the dawn chorus…of scores of bird voices there was now no sound; only silence lay over the fields and woods and marsh." (Carson, R. (2000). Silent Spring. London: The Folio Society, p.17)