John Michael Greer (born 1962) is an American author who writes on the environment and various religions. He served until December 2015 as the Grand Archdruid of the Ancient Order of Druids in America, and since then has focused on the Druidical Order of the Golden Dawn, which he founded in 2013.
The International Journal of Agricultural Sustainability referred to his book The Wealth of Nature as "challeng[ing] the paradigms that underlie the complex system of wealth distribution we know as economics."
His book The New Encyclopedia of the Occult was selected as a reference text in 2005 by American Libraries and noted by Booklist and Publishers Weekly.
^Friedrichs, Jörg (August 2010). "Global energy crunch: How different parts of the world would react to a peak oil scenario". Energy Policy38 (8): 4562–4569. doi:10.1016/j.enpol.2010.04.011.
^Avery, William Alexander; Francis, Charles (22 May 2013). "The wealth of nature: economics as if survival mattered". International Journal of Agricultural Sustainability12 (1): 89–91. doi:10.1080/14735903.2013.796766.