https://web.archive.org/web/20201108003849/https://www.seattletimes.com/seattle-news/searchers-find-body-of-man-believed-to-be-missing-denny-creek-hiker/
Even if smog were a risk to human life, we must remember that life in nature, without technology, is wholesale death Ayn Rand, The Objectivist (February 1971)
https://www.seattletimes.com/seattle-news/searchers-find-body-of-man-believed-to-be-missing-denny-creek-hiker/