The essential needs like food, clothing, housing will be incomplete without ‘Water’ as it is the basic need of every human being.
During the time when
1. Population was under control
2. Abundance of land & forests were available
3. there was regular & sufficient rainfall, nobody ever dreamt that there would be shortage of water. However in last few decades, the human beings have created the current shortage of water which will affect their own existence; and they will have to blame only themselves for it.