On the occasion of World Rivers Day, Indra Shekhar Singh interviews the “waterman of India”, water conservationist and environmentalist Rajendra Singh. Singh won the Magsaysay Award in 2001 and Stockholm Water Prize in 2015.Singh takes on issues of water security, climate change and water wars. Commenting on the big dams on the Brahmaputra, the Chinese threat to Indian water, Singh predicts a future of eco-refugees and conditions that could lead to a world war.The interview ends with solutions and principles through which India and the world can save themselves from a climate and water disaster.