Andi Besse Rimba¹, Mohan Geetha¹, Saroj Chapagain¹, Kensuke Fukushi², Giulia Roder¹, Arumansawang Andi³ and Water for Sustainable Development, (1)United Nations University Institute for the Advanced Study of Sustainability (UNU-IAS), Tokyo, Japan, (2)University of Tokyo, Integrated Research System for Sustainability Science (IR3S), Tokyo, Japan, (3)Ehime University, Graduate School of Science and Engineering, Matsuyama, Japan