This Organization was founded by John Muir and now is one of the most popular environmental organizations. There mission is "To explore, enjoy, and protect the wild places of the earth; To practice and promote the responsible use of the earth's ecosystems and resources; To educate and enlist humanity to protect and restore the quality of the natural and human environment; and to use all lawful means to carry out these objectives."
Sierra Club. (n.d.). Retrieved from https://en.wikipedia.org/wiki/Sierra_Club
Sierra+club - Google Search. (n.d.). Retrieved from https://www.google.com/search?q=sierra%2Bclub&biw=1165&bih=670&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiQ_5rivbzMAhXrn4MKHUuiDqMQ_AUIBygC