What a water-wise city would look like – and how India can get there
Durban and Bhubaneswar have protected water access for low-income households. Las Vegas and Bengaluru use higher tariffs to discourage excessive consumption. Seoul and Guwahati have strengthened planning rules to protect floodplains. Windhoek and Chennai show that treated wastewater can become a reliable source of water
We haven't written up this one. The Hindu - Sci-Tech has the full story — the link below goes straight to it.