Professor Yutaka Takahasi won the 2015 Japan Prize. Congraturations!
He found out that the Japanese practices of river improvement sometimes increased the flood peaks in 1960s and has established a philosophical context on how the mankind should coexist with the fresh water resources and environment. He has been playing a constructive role and left his mark in enhancement of international cooperation especially in the Asia-Pacific region. (Link:http://www.civil.t.u-tokyo.ac.jp/news/index.shtml?id=60)