Causes of
Water scarcity Ben Gamra Meryem 1 1DNUA
Higher Institute of Environmental Technologies of Urbanism and Building
CONTENTS :
Introduction What is water scarcity ?
What are the main causes of water scarcity ?
SURFACE
WATER 71%
LIQUID FRESHWATER
SALT WATER 97% FROZEN FRESHWATER 2% LIQUID FRESHWATER 1%
UNDERGROUND
3
?
What is water scarcity ? Water scarcity is the lack of fresh water resources to meet water demand.
What are the main causes of water scarcity ? Nature
Human
Economy
Politics
4
What are the main causes of water scarcity ? Buried lake
Urban/density
Floods
Pollution
2 million tons of waste are dumped in water sources.
Leakages in the water network. Mexico : ½ of drinking water is lost.
Critical infrastructure 5
What are the main causes of water scarcity ? Less rain
Less snow
Elevation of temperature Drought INDIA
TODAY
Water level in 1983
With less than 45 per cent rain, drought looms over Bihar. 1 AUGUST, 2019
I
SANJAY NIRALA
Less river 6
What are the main causes of water scarcity ? B B C news Are India and Pakistan set for water wars ? 1 DECEMBER, 2016
I
NAVIN SINGH KHADKA
Gouvernmental access In dictatorships, the use of water may be strictly controlled by those in power.
Conflict If there is conflict over an area of land, it may be difficult to access the water that is located there. 7
What are the main causes of water scarcity ? Bad consumption
700 million people have no access to clean water.
Distance
Bad distribution One person uses more than 100 liters per day.
Population growth
8
USE LESS. SAVE MORE. ADVOCATE ALWAYS.
THANK YOU
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