water scarcity and global health presented by, r.ramesh kannan reg.no:105986144037
TRANSCRIPT
WATER SCARCITY AND GLOBAL HEALTH
Presented by, R.Ramesh kannan
Reg.no:105986144037.
WATER SCARCITY
1. Water scarcity is either a shortage of
water or the lack of access to safe water.
2. Water scarcity has detrimental effects on
living things.
Annual Water Withdrawals (m3 per capita)
0 200 400 600 800 1000 1200 1400 1600 1800 2000
United States
Canada
China
Japan
India
France
Russia
United Kingdom
Norway
New Zealand
Argentina
Mexico
Egypt
Israel
Kenya
Nigeria
South Africa
Annual Renewable Water Resources (m3 per capita)
0 10,000 20,000 30,000 40,000 50,000 60,000 70,000 80,000 90,000 100,000
United States
Canada
China
Japan
India
France
Russia
United Kingdom
Norway
New Zealand
Argentina
Mexico
Egypt
Israel
Kenya
Nigeria
South Africa
©IWMI, 2001
The threshold for ‘water stress’ is a per capita availability of 1700m3 of water for annual consumption
For water scarcity the threshold is 1000m3 of water for annual consumption
FACTORS INFLUENCING WATER SCARCITY
Hydrologic Cycle
Population Growth
Poverty
Use Patterns
Contamination
http://www.wmo.int
World population increased 300% in 20th century and use of water increased 700%
Since 1950 the world population has doubled but water consumption has increased six-fold
Water use will increase 50% over 2005 level by 2035
Approximately 2M tons of human waste is released annually into rivers and streams around the globe.
IMPACTS ON GLOBAL HEALTH
About 1.8M people, mostly children, die annually from diarrhea and related diseases with many deaths preventable if water were not contaminated
The combination of safe drinking water, adequate sanitation and good hygiene can reduce the number of deaths caused by diarrhoeal diseases by an average of 65%
The simple act of washing hands with soap and water can reduce diarrhoeal diseases by over 40%
http://www.thespiritans.org http://www.apec-vc.org.cn
Malnourished children are more vulnerable to
disease, especially diarrhea, pneumonia,
measles and malaria. These four diseases,
plus malnutrition, account for seven out of ten
childhood deaths in developing countries. For
example in Zambia, one in five children dies
before their fifth birthday.
A lack of water also means that children
cannot wash often enough and suffer from
diseases as a result. These include skin
diseases like scabies and eye infections such
as trachoma, the largest cause of preventable
blindness in the developing world by
regularly washing the face, hands, and eyes.
http://www.droitsenfant.com
www.savesight.org
SOLUTIONS
The water sources like rivers, lakes should be
Kept clean and safe.
The factory wastages should not mix with drinking water
sources.
Planting more trees will increase the rainfall and will be
perfect solution for this problem.
Each individuals having responsibility to avoid this bane in
future.
THANK YOU