"Water scarcity can push the world to war", "water shortages could affect 5 billion people by 2050", a UN report warns, "dying for a drink of clean water", are some of the highlights from research around the world. List the key concerns for water shortage in the world considering the demand and supply factors and explain what roles governments should play to address this problem.

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Key concerns for water shortage in the world stem from both demand and supply factors 1 Growing Population The worlds population is increasing leading to higher demand for water for drinking sanitatio... View the full answer