- 1990 Asahi Shimbun Prize
- 1990 Goldene Blume von Rheydt Prize, Germany
- 1992 Purple Ribbon Medal, Japanese Government
- 1995 Reinhold Tüxen Prize, Germany
- 1996 Nikkei Global Environmental Technology Awards
- 2000 Order of the Sacred Treasure, Gold and Silver Star, Japanese Government
- 2002 Japan Culture Life Award
- 2003 Distinguished Service Award, Ecological Society of Japan
- 2006 Blue Planet Prize, considered the Nobel Prize in the field of environment protection
- 2013 Inducted into the Earth Hall of Fame, Kyoto
- Today, even at the age of 93, he leads an active intellectual life by being Professor Emeritus, Yokohama National University, and Director, Japanese Center for International Studies in Ecology. Besides, he continues to advise and guide conservationists across the world.
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