Here’s a story about the removal of the Arase Dam and Shoko Tsuru, one of the key figures in the successfyl campaign to remove the dam. The article mentions interest from Korea, which is facing similar environmental problems.

http://www.japantimes.co.jp/news/2013/12/19/national/rivers-savior-still-sees-work-ahead/#.UrRG0XkiZEw