Singapore must ensure adequate water supply to meet growing needs by 2050: Chan Chun Sing
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Any work on water supply and demand starts with a Water Balance Study and analyse the water deficit anticipated with the view of climate change impact (weather such as rainfall, evaporation, etc) as well as growing demands in domestic, industrial and others (irrigation for other countries).
A similar study is ongoing by DHI India at Chennai, and I am happy to be part of the international team. Please visit the ADB website regarding this ongoing project: