Water scarcity

Physical scarcity definition

Not enough water to meet all demands

Consumption exceeds 60% of the useable supply

Economic water scarcity definition

Lack of investment in water or a lack of human capacity to satisfy the demand for water even in places where water is abundant

The country physically has enough water to meet its needs but requires additional storage and transportation facilities

Examples

Chennai

California

Water quantity

Depends on rate of rainfall evaporation transpiration and river and ground water flows

Less than _ of all freshwater available for people to use

One percent

What is El Niño

A climate ohonemenon triggered by periodic warming of central eastern Pacific Ocean, weakness trade winds and shifts rainfall eastward.

El Niño impact

Depriving regions of typical monsoon moisture, leading to prolonged droughts as reduced rainfall dries soils rivers and reservoirs. Leading to crop failure wild fires and water scarcity