1. Carlos Chersia & Nathan Willett

2. Water Deficit: Term used to describe a situation where
the available water within a region is less than the
region's demand.

3. Water Pollution
 What is it?

4. Drinking Water
 Water pure enough to be consumed or used with low
risk of immediate or long term harm.
 In most developed countries, the water supplied is
“drinking water”
 only a very small proportion is actually consumed or
used in food preparation. Typical uses include washing
or landscape irrigation.

5. How many of you think the water going to your house
isn’t “drinking water”?

6. How many of you take showers with that water?

7.  Today, nearly 1 billion people, 1/7 of the world’s
population, do not have access to safe drinking water.
 disease vectors, pathogens or unacceptable levels of
toxins.
 Drinking or using such water in food preparation leads
to widespread acute and chronic illnesses and is a
major cause of death and misery in many countries.

9. What can be done?
 http://www.youtube.com/watch?v=rXepkIWPhFQ

10. Bibliography
 http://www.alhekma.com/challenge2020/global%20i
mpact%20of%20water%20deficit.htm
 http://www.populationpress.org/publication/2002-9-
brown.html
 http://www.extension.umn.edu/distribution/cropsyst
ems/components/DC3875c.html
 http://ipsnews.net/news.asp?idnews=56563