Casson Trenor

Casson Trenor is an American environmentalist, author, entrepreneur, and media personality. He is the author of a number of books on environmentalism and sustainable seafood, in particular Umijoo, a children's book, and Sustainable Sushi, a reference guide. Trenor and two co-founders created the world's first sustainable sushi restaurant in 2009, as well as the acclaimed plant-based Japanese restaurant Shizen in 2015. In recognition of his work, Trenor was awarded a Congressional Commendation as well as the title "Hero of the Environment" by Time magazine.

Trenor currently works primarily as a speaker, author, and consultant on environmental and sustainability issues. Over the course of his career, he has worked for and with a number of environmental causes, such as Greenpeace, FishWise, the Monterey Bay Aquarium, and the Conservation Strategy Fund. In April 2012, Trenor featured as part of a TEDx event in San Francisco, California. The talk focused on the sustainable sushi movement, which he was partly responsible for starting. His work for Greenpeace heightened his profile within the sustainable seafood movement when he produced Greenpeace's first Carting Away the Oceans report. Despite him moving on from Greenpeace in 2014, they still produce the report annually.