The Yarshater Center notes with sorrow the passing of Mr. Eskandar Firouz on 13 Esfand 1397 (3 March 2020) in Rockville, Maryland. A celebrated environmentalist and conservationist, Mr. Firouz served as the Vice-President for the United Nations Conference on the Human Environment in Stockholm in 1972 and was a member of the board of the International Union for Conservation of Nature from 1973-74. He was responsible for transforming the Game and Fish Department of Iran, founded in 1967, into the Department of the Environment in Iran in 1971. Under his guidance, six wildlife reserves and thirty-five protected regions were organized as national parks, nature monuments, wildlife refuges, and protected areas in order to safeguard endangered species and threatened ecosystems. Mr. Firouz’s scholarly work includes Environmental Protection in Iran (with W. H. Wambold, 1976) and The Complete Fauna of Iran (2005). Mr. Firouz also contributed articles to the Encyclopaedia Iranica, including its entries on the Caspian seal, sand grouse, leopard, red deer, and ibex as well environmental protection and the national parks of Iran. We extend our condolences to Mr. Firouz’s family and many friends.