Download Water Conservation - Ms.Bentheimer`s Wikispace

By: Serena Matovich
Water Supply
 The Earth is 70 percent water.
 The amount available for human consumption is less than one percent.
 All other water is either fresh water that is frozen, not safe to consume, salt
water in the water, or inaccessible.
 97.5 percent of the water on Earth is salt water.
 68.7 percent of all fresh water is frozen in ice caps and glaciers.
Lack of Water Access
 In Africa, there are 345 million people who don't have access to water
 In developed countries (such as the United States and Europe), there are 10
million people without access to water.
 There are 780 million people in the world that lack access to water.
Water Related Disease
 Every 21 seconds, a child dies from water related diseases.
 Guinea Worm disease: occurs when drinking water is contaminated with
Dracunculus larvae.
 In 2002, there were 50,000 cases of Guinea Worm disease in 13 countries in
Africa.
 Typhoid: caused by a bacterial infection from eating or drinking contaminated
things.
 Every year, there are about 12 million diagnosed with typhoid.
Water Scarcity
 The amount of water there is never changes, thanks the water cycle.
 There is the possibility that when water return to the Earth, it won't be
return in the same place, or with the same quality or quantity.
 Population, demand and climate are growing and changing.
Water Changes Based on Climate
 A climate that is warmer increases evaporation from the land and sea,
and also allows more water to be held in the atmosphere.
 For every degree in Fahrenheit the temperature rises , the water
holding capacity in the atmosphere increases by about 4%.
Water in Economics
 According to the World Health Association, for every dollar invested in
water and sanitation, there is an economic return of between 3 and 34
dollars.
Recycling Wastewater
 Wastewater has already been being recycled for agricultural and industrial purposes.
 Places like Singapore and Windhoek, Nambia are already recycling wastewater for
drinking purposes.
 In Fairfax, Virginia they have been recycling wastewater since the 1970s and 5% of their
daily water supply comes from purified wastewater.
 Only 10% of wastewater comes from toilets.
 The rest comes from showers, sinks, and laundry machines.
 Purified wastewater is actually cleaner than water bought in store because of stricter rules
for cleanliness.
Water Reduction
 Take showers instead of baths.
 Never run the faucet continuously.
 Use low-flow shower heads or an adjustable flow reducer.
 Fix any leaks you may have.
The Water Challenge
 Founded by the Water Project.
 Created for Schools (or classes), Churches, youth groups, or companies to
participate.
 Asks participants to only drink water from the tap for two weeks and then to
donate the money they saved.
 Over the past 2 months over 800 groups around the United States and Canada
have signed up.