Please write a 5 paragraph essay about how John Muir was a great activist, naturalist, and author about nature

John Muir, (born April 21, 1838, Dunbar, East Lothian, Scotland—died December 24, 1914, Los Angeles, California, U.S.), Scottish-born American naturalist, writer, and advocate of U.S. forest conservation, who was largely responsible for the establishment of Sequoia National Park and Yosemite National Park, which are located in California.

Muir emigrated from Scotland with his family to a farm near Portage, Wisconsin, in 1849. In 1860 he traveled the short distance south to Madison, where he subsequently attended the University of Wisconsin until 1863. After leaving Madison, Muir worked on mechanical inventions, but in 1867, when an industrial accident nearly cost him an eye, he abandoned that career and devoted himself to nature. He walked from the Midwest to the Gulf of Mexico, keeping a journal, A Thousand-Mile Walk to the Gulf (published posthumously in 1916), as he went.

In 1868 he went to the Yosemite Valley in California. From there he took many trips into Nevada, Utah, Oregon, Washington, and Alaska, inspired by his interest in glaciers and forests. In a series of articles published in 1874–75 in the magazine Overland Monthly, Muir attributed the spectacular Yosemite formations to glacial erosion; he was the first to present this theory, which is now generally accepted.

As early as 1876, Muir urged the federal government to adopt a forest conservation policy. He became a central figure in the debate over land use, advocating on behalf of land preservation primarily through articles published in popular periodicals, such as Atlantic Monthly, The Century Magazine, and Harper’s New Monthly Magazine (now Harper’s Magazine).

Although initially finding common ground in the ideas of forest protection put forth by Gifford Pinchot, a pioneer of U.S. forestry and conservation, Muir’s views ultimately diverged. Whereas Pinchot supported the sustainable use of resources within national forests, Muir believed that national parks and forests should be preserved in their entirety, meaning that their resources should be rendered off-limits to industrial interests. Although Sequoia and Yosemite national parks were established in 1890, representing a victory for environmental protection, the debate between Pinchot’s utilitarian approach to forestry and Muir’s preservationist approach was far from over.

my best guess would be: d allusion

makes the most sense