Vibhu Nayar: ‘Water is the climate challenge’

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From The Hindu (Vibhu Nayar):

Only 0.5 per cent of the water on the planet is available for human use. This is now under pressure. Globally, per capita availability decreased from 16,900 cubic metres in 1950 to 6,800 cubic metres in 2000, and is expected to fall to 5,400 cubic metres by 2025. Water is also unevenly distributed, with the developed world being better endowed. Scarcity is both physical and economic and affects Africa and Asia the most. India is spatially and temporally challenged as 50 per cent of rainfall is received in 15 days and 90 per cent of flows occur in just four months.

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