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
River's savior still sees work ahead
Shoko Tsuru happily watched a multitude of tiny bubbles appearing on the surface of mud flats at the mouth of the Kuma River. The bubbles show that the mud ...