Justice Michael Wilson was appointed to the Hawaii State Supreme Court on April 17, 2014, after serving as a Judge of the Hawaii State Circuit Court of the First Circuit since May 10, 2000. He was instrumental in the establishment of the environmental court for the state of Hawaii. His published writing focuses on the application of the environmental rule of law to climate change. He has spoken before judicial forums in the United States, China, Latin America and India on the subject of the role of the judge and climate change. Prior to his appointment as a Circuit Court judge, Justice Wilson was the director of the Department of Land and Natural Resources for the State of Hawaii, Chair of the Board of Land and Natural Resources and Chair of the State Water Commission. He was awarded a lifetime membership in the Western Association of Fish and Wildlife agencies in 1999.
Justice Wilson is a member of the Governing Committee of the Global Judicial Institute on the Environment; a member of the Climate Change Task Force for the International Union for the Conservation of Nature; a member of the World Commission on Environmental Law of the International Union for the Conservation of Nature; a member of the International Advisory Committee to the China Ecocivilization Forum; and an adjunct faculty member of the Jindal Global Law School in Sonipat, India. He was the chief elections officer for the 2016 IUCN Congress in Honolulu Hawaii.