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33 1-earthsoft-water - critical resource-final
1. Making earth little softer
Earthsoft Foundation of Guidance
Edge-Aggressive-Reliable-Trust-Honesty-Soft-Obedient-Fun-Transparent
2. Making earth little softer
Earthsoft Foundation of Guidance (EFG) has uploaded following
presentations at http://myefg.in/downloads.aspx
Be mentor using your education, knowledge & experience to
contribute for a social cause & do conduct free training seeking
help of existing platforms. Kindly share with your friends
•Motivation for higher study, Planning for study, Education
guidance, Career guidance, Career available after SSC & HSC
•Personality development – 3 files
•How to prepare resume, Tips to attend interview successfully
•Religion related –To understand basic religion, Do & Don’t tips
•Health related - Be vegetarian, Be healthy, Manage health
•Corporate - Project management, Assertiveness, Ownership,
Effective communication, Leadership, Be entrepreneur
•Finance - To avoid speculation in stock market
•Social - Women empowerment, Choosing life partner, conflict
resolution, stop ragging, stop alcohol, snakebite treatment
About us
3. Making earth little softer
• Earth as water planet
• The Hydrologic Cycle
• Water usage & its distribution
• Water & sanitation
• Data – Globally
• Water – an issue
• Global Scarcity & challenges
Index
5. Making earth little softer
Earth as water planet
• Earth is often referred to as `the water planet'.
• Earth is unique amongst planets of our solar
system because of its abundant water - in
oceans, atmosphere, glaciers and as fresh
water on land.
• Without water, life could not exist
• Ocean Water: The vast majority of water on the
planet is the salt water in the oceans and seas.
• Groundwater: Freshwater is stored in
underground aquifers. Water that enters an
aquifer remains for an average of 1,400 years!
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Water on the earth
• Water is the main constituent of ecosystem & is
the basis of known life forms, including humans
• It was the basis of the origin of life on our planet
• It is essential to civil, agricultural & industrial use
• Men recognized since ancient times its
importance, and identified as one of the main
constituents of the universe, giving it a deep
symbolic value, found in major religions.
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Significance of water
• Water is an integral part of life on this planet.
• It is an odorless, tasteless, substance that
covers more than three-fourths of the Earth's
surface.
• Most of the water on Earth, 97% to be exact, is
salt water found in the oceans.
• We can not drink salt water or use it for crops
because of the salt content & is heavy
• We can remove salt from ocean water, but the
process is very expensive.
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Three forms of Water
• Solids: When water becomes very cold and
freezes it changes from a liquid to a solid state.
It has a definite form and shape.
• Liquids: When water takes the shape of its
container it is in a liquid form.
• Gases: When water is seen in a vapor form and
has no definite size or shape it is in a gas form.
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Importance of water
• Organisms are composed 70%-95% of water
• Transport medium for food, oxygen, and other
things needed by cells
• Cellular medium within which biochemical
reactions can occur
• Supportive external environment for aquatic
organisms
• Means of support - Turgid plant cells
/Hydrostatic animal support systems
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A precious natural resource
• We use water for drinking, irrigation, industrial
purposes and energy production.
Water use
• Agriculture and energy production - 80%
• Industry and public use - 20%
Usage
• As a nourisher of plant, animal & human life
• A bearer of food & drinks
• A prime element of industrial processes
• A medium for transportation
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What kinds are there?
Availability
Water is essential to life on earth
• 97% of the water is salt water, and
is found in the oceans of the world.
• 3% of the water is fresh water on
which we depend.
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Condensation
The Clouds form
Evaporation
vapor rises
Transpiration
The movement
through plants
Precipitation
The rain falls
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• Saltwater evaporates from sun's energy
producing fresh water in clouds; leaves salts in
ocean.
• Water vapor cools and condenses to
precipitation over oceans and land.
• Runoff forms fresh water lakes, streams, ponds,
groundwater, and is held in plants and
transpired.
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• Surface water is water collected on the ground
or in a stream, river, lake, wetland, or ocean
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• Two main processes: precipitation &
evaporation
• Powered by energy from the sun
• Hydrologic cycle purifies water
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Ocean
Evaporation
Evapo-transpiration
runoff
Water
Supply
Discharge
treated water
Salt Water Intrusion
Aquifer
Infiltration
Recharge
Evaporation
Extraction
Precipitation
Precipitation
Evaporation/ET
Surface Water
Groundwater
Soil moisture
Infiltration (Art)
Extraction
Return flow
Treated water Aquifer intrusion
Soil moisture
Soil
moisture
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Ground Water
• Ground water is located beneath the ground
surface in soil pore spaces and in the fractures
of rock formations.
• A unit of rock or an unconsolidated deposit is
called an aquifer when it can yield a usable
quantity of water
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Evaporation and transpiration
Evaporation
Stream
Infiltration
Water tableInfiltration
Unconfined aquifer
Confined aquifer
Lake
Well requiring a pump
Flowing
artesian well
Runoff
Precipitation
Confined
Recharge Area
Aquifer
Less permeable material
such as clay
Confirming permeable rock layer
Ground Water
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•Two thirds of our planet is
covered by water.
•97.5% of the water is
saltwater.
•The majority of freshwater is
beyond our reach, locked into
polar snow and ice.
•Two thirds of our planet is
covered by water.
•97.5% of the water is
saltwater.
•The majority of freshwater is
beyond our reach, locked into
polar snow and ice.
Water world
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• Only about 2.8% of Earth's water is fresh.
• ~ 2% of the Earth's water is in solid form, found
in ice caps and glaciers.
• One percent of all the Earth's water in a form
useable to humans and land animals.
• This fresh water is found in lakes, rivers,
streams, ponds, in the ground & as vapor in the
atmosphere
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The earth's water supply
• Water covers 70.9% of the Earth's surface.
• The amount of fresh water accounts for 2.6%,
which is vital for all forms of life.
• 97.2% of the Earth's water supply is salt water.
• Only 2.8% is fresh water!
• 97.200% salt water in the oceans
• 02.014% ice caps and glaciers
• 00.600% groundwater
• 00.009% surface water
• 00.005% soil moisture
• 00.001% atmospheric moisture
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Oceans 97%
Atmosphere 0.01%
Rivers, Lakes, &
Inland Seas 0.141%
Soil Moisture
0.0012%
Ground Water
0.4 – 1.7%
Ice Caps and Glaciers 1.725%
Distribution-Water reservoirs
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22%
8%
70%
0
10
20
30
40
50
60
70
80
Agriculture Domestic Industry
Water uses
%oftotalwaterused
World water usage
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• 66% of the human body is
made up of water
• We should drink at least
1½ litres of water a day.
• At just 2% dehydration your
performance decreases by
around 20%
• 66% of the human body is
made up of water
• We should drink at least
1½ litres of water a day.
• At just 2% dehydration your
performance decreases by
around 20%
Human need
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Water Resources - Rainfall
• Annual average rainfall : 105 cm
• Largest in the world for a country
• River area = 3288000 km2
• Surface flow : 1880 km3 /700 km3 for beneficial
use
• Ground water : 600 Km3/420 km3 usable
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Water Bodies
• River & Canals : 7420 Km
• Reservoir : 0.52 Lakh hectares
• Tanks, Lakes & ponds : 6.91 Lakh hectares
• Brackish Water : 0.56 Lakh hectares
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Ground water
• Total potential : 431 km3 per year
• Drinking & Industrial purposes (16% of total
potential)
• 68% is still remaining untapped
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Water Resources - Rainfall
• India’s total annual replinishable underground
fresh water is 433 BCM
• 344 BCM through natural from rainfall
• 89 BCM from canal irrigation system
• There are 12 major river basins, the largest is
Gangetic Plain Aquifer with replinishable ground
water at 206 BCM or 48%.
• India has been reasonably rich in Ground water
and is one of the main reason of sustenance its
variety of life species
• http://www.indiastat.com/meteorologicaldata/22/rainfall/238/stats.aspx
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Water Resources - Rainfall
2010 2025 2050
WATER
(BCM) Low H Low H Low High
Irrigation 543 557 561 611 628 807
Domestic 42 43 55 62 90 111
Industries 37 37 67 67 81 81
Power 18 19 31 33 70 70
Inland
Navigation 7 7 10 10 15 15
Flood Control Not available
Afforestation Not available
Environment /
Ecology 5 5 10 10 20 20
Evaporation
Losses 42 42 50 50 76 76
Total (BCM) 694 710 784 843 980 1180
• Water Demand is
rising, to grow 34% in
next 25 years
• Domestic/Industry
mix demand growing
faster than Irrigation
• Ground water
represents about
46% in Agriculture
Supply and 80% of
Domestic Supply.
And its Growing
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Use of Water Resources
Humans use about 54% of reliable runoff
Agriculture
Industry
Domestic
Power plants
United States
Industry 11%
Public 10%
Power
cooling
38%
Agriculture
38%
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0
100
200
300
400
500
600
700
800
900
1 2 3 4 5
Demand,BCM
Use
Water Demand for Different Uses
1990
2025
2050
Irrigation Domestic
Industry
Power Others
Water demand
BCM – Billion cubic meter
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Water consumed In 1990
• 25 BCM of water for domestic
• 460 BCM of water for agricultural
• 40 BCM of water for industrial (10 BCM as
process water + 30 BCM as cooling water)
• Total 525 BCM (km3)
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Water Consumption
# Country Average Usage per
day
1 Kenya 10 litres (3 gallons)
2 Canadian 326 litres (86 gallons)
3 American person 500 litres (132 gallons)
4 India 53 litres (14 gallons)
5 Japan 292 litres (77 gallons)
6 Switzerland 405 litres (107 gallons)
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Water Usage
# Task Av. use in
gallon
1 To make four car tires 2072
2 To produce 1 pound of plastic 24
3 To refine 1barrel of crude oil 1851
4 To produce 1 pound of potato 60
5 To produce 1 pound of wheat 108
6 To produce 1 pound soybean 240
7 To produce 1 pound of beef 12009
1 Gallon = 3.78 Lit
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Uses of water
Five Designated Best uses of water bodies
Class Designated Best Use
A Used for drinking without any treatment
but with disinfections
B Used for outdoor bathing
C Used for drinking with treatment
D Used for propagation of wild life and
fisheries
E Used for irrigation, Cooling and controlled
waste disposal
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Water Usability
Class Designated best use pH DO
(mg/L)
BOD
(mg/L)
MPN/
100 ml
A Drinking without
treatment, but chlorination
6.5 –
8.5
6 or
more
2 or
less
50
B Outdoor Bathing 6.5 –
8.5
5 or
more
3 or
less
500
C Drinking with treatment 6.5 –
8.5
4 or
more
3 or
less
5000
D Propagation of wild life,
fisheries
6.5 –
8.5
4 or
more
NA NA
E Irrigation, Industrial
cooling & controlled waste
disposal
6.0 –
8.5
NA NA NA
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Drinking Water Quality
Indian Standards for Drinking Water Quality
S No Characteristics Acceptable Cause for
Rejection
1 Turbidity (NTU) 1 10
2 TDS (mg/L) 500 2000
3 Nitrates (mg/L) 45 45
4 E Coli Must not be detectable
5 Chromium
(mg/L)
0.05 0.05
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Water for Food–1 liter/calorie
Description Liters of Water
Daily Drinking Water 2 – 5 Liters of Water
Daily Household Use 20 – 500 Liters of Water
1kg of Grain 500 to 2,000 Liters of
Evapotranspiration (ET)
Livestock products
(meat, milk)
5,000 to 15,000 Liters of
ET
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Sectoral water consumption is increasing due to
increased demand
Demand will double in the next 40 years
Water consumption
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Highest Rain fall
Mawsynram & Cherrapunji is credited as highest
& second wettest place on Earth
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Highest Rain fall
Mawsynram & Cherrapunji is credited as highest
& second wettest place on Earth
Country India
State Meghalaya
District East Khasi Hills
Elevation 1,484 m (4,869 ft)
Population (2011)
• Total 14,816
• Density 397/km2
(1,030/sq mi
)
Time zone IST (UTC+5:30)
Precipitation 11,777 millimetres
(463.7 in)
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Chemical Formula
• What is the chemical formula of water?
• The density of water is 1000 kg per m3
• It is measured in cubic foot, gallon (3.7854 lit),
liter, quart (0.9463 lit), cup, etc
Hydrogen
Hydrogen
Oxygen
H2O
Liquid measuring
device
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Water & Earth
• What % of the Earth is made up of water?
• What % of water is Salt, Fresh, and Frozen?
• What sources and sketch to create 2 pie charts
• The Earth is made up of
approximately 70% water.
• 97% of that water is salt
water. Very little is water that
we use to drink & cook
• 2% of water is frozen.
• 1% of water is fresh water
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Water & Body
• What % of our body is made up of water?
• Human body is made
up of ~ 60-70% water
• Medical source
documents that men
have 60% and women
have 50% water.
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Water & Blood
• What percentage of blood is water?
• 92% of 55% which is 50.6%
• Blood is a specialized bodily fluid in animals that
delivers necessary substances such as
nutrients and oxygen to the cells and transports
metabolic waste products away from those
same cells.
• It is composed of blood cells suspended in a
liquid called blood plasma. Plasma, which
constitutes 55% of blood fluid, is mostly water
(92% by volume),and contains dissipated
proteins, glucose, mineral ions, hormones,
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Water need
• Using the following site, calculate how much
water your team should drink a day.
• http://nutrition.about.com/library/blwatercalculator.htm
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Function of Water in body
• Identify main functions of water in the body’s
metabolic process.
• It delivers oxygen and nutrients to different parts
• It removes toxins and waste from the body
• Water also has other functions:
• Regulates body temperature through
perspiration
• Reduces friction between joints and facilitates
movement
• Acts as a cushion between organs to protect
• Facilitates normal functions of body processes.
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Water & Body
• In what way the body lose water & How much?
• A person can live without food for several weeks
but life cannot last more than few days without
water . Human body is 60-70 % water. We take
water with food and drink, and lose it in urine, in
sweat, and in our breath (as water vapor)
• A person loses 1.89-2.83 lit of water every day
as a result of their normal body functions
• This much loss means if a person doesn't get
any fluids for about three days, they will die.
• 6-9 quarts (5.678-8.517 l) of water loss would
cause death.
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Water & Body
• Recall how much water the average person
loses in one day through their urine, sweat, and
normal breathing.
• Percentage of overall water loss occurs when:
• Thirst is perceived.
• Strength and endurance decrease.
• Delirium and blurred vision become a problem
and you can not move.
• A person dies.
• Calculate the amount of water loss for each
based on the amount of water lost per day.
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Water & Body
• In one day the person loses between 2 to 3
quarts of water through their urine, sweat, and
normal breathing. If a person doesn't replace
that lost water, then dehydration begins to
occur.
• At 1-2% dehydration, thirst is perceived. (.6-.9
quarts)
• At 5% dehydration, a person becomes hot and
tired, and strength and endurance decrease.
(1.5-2.25 quarts)
• At 10% dehydration, delirium & blurred vision
become a problem, can not move. (3-4.5 quarts)
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Water & Body
2% 5%
10%
20%
0%
10%
20%
Water Loss
Effects on
the Human
Body
Effects of Water Loss on Human Body
(..6-.9 Qts)Thirst is Perceived
(.1.5-2.25 Qts)Strength/Endurance is decreased
(.3-4.5 Qts)Delirium/Blurred Vision Occurs
(.6-9 Qts)Death Occurs
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Think About
• Imagine an extended shortage of fresh safe
drinking water at any time in your life
• People from many other countries think about
this every day. A shortage of fresh safe drinking
water is a daily problem
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Dehydration during Competition
Athlete
Lightweight Boxer
Baseball Player
200-M Sprinter
Shot-Putter
Race Walker
Sprinter/long Jump
Marathoner
Triathlete
Tennis Player
Sweat Rate(Qts/Hr)
.85
1.16
1.19
1.27
1.47
1.48
1.51
1.6
5.92
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Other Water Facts
• 1.2 billion people lack access to safe water,
• ~one-sixth of the world's population lack access
to adequate sanitation services.
• 6,000 die every day from diseases associated
with unsafe water, poor sanitation & hygiene.
• Unsafe water & sanitation cause an estimated
80 % of all diseases in the developing world.
• Women and girls tend to suffer the most as a
result of the lack of sanitation facilities.
• One flush of a Western toilet uses as much
water as the person in the developing world
uses for washing, drinking, cleaning & cooking.
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Water facts..Continued
• Water use has grown at twice the rate of
population during the past century. The Middle
East, North Africa and South Asia are
chronically short of water.
• In developing countries, as much as 90 percent
of waste water is discharged without treatment.
• Over pumping groundwater for drinking water
and irrigation has caused water levels to decline
by tens of meters in many regions, forcing
people to use low-quality water for drinking.
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Water facts..Continued
• Losses of water through leakage, illegal hook-
ups and waste amount to about 50 percent of
water for drinking and 60 percent of water for
irrigation in developing countries.
• Floods affected more than 75 percent of all
people impacted by natural disasters during the
1990s and caused over 33 percent of the total
estimated costs of natural disasters.
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Problems using Groundwater
Water table lowering
Depletion
Subsidence
Saltwater intrusion
Chemical contamination
Reduced stream flows
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Water and sanitation
• Investments in safe drinking water and
improved sanitation show an improvement in
human health and economic productivity.
• Each person needs 20 to 50 liters of water free
of harmful chemical and microbial contaminants
each day for drinking and hygiene.
• It’s a challenge to providing this basic service to
large segments of the human population.
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Learning Objectives
• To understand that water is a global issue and
not just within certain countries
• That lack of water is not the only issue in water
insecurity and stress
• Access to sanitation is linked to poverty
• Development can hinder water quality, access
and supply
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Human water needs
• In the US usage in gallons/person/day
• A person needs about 1 gallon water/day for
hydration
• Personal use - 188
• Additional 657 used for irrigation, industrial use
• Total per capita use is about 2000
gal/person/day
• If world’s water supply were 100 liters, the
usable supply would be about 0.5 tsp
(teaspoon)
• US has highest per capita water withdrawal,
followed by Canada, Australia, Russia, Japan
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Global water situation
• Estimates suggest that nearly 1.5 billion people
lack safe drinking water
• At least 5 million deaths per year can be
attributed to waterborne diseases.
• With over 70 percent of the planet covered by
oceans, people have long acted as if these
water bodies could serve as a limitless dumping
ground for wastes.
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A very personal look at water
• What happens to water before you drink it?
• What happens to water after you dispose of it?
• Approximately 57% of Canadians are served by
wastewater treatment plants, compared with
74% of Americans, 86.5% of Germans, and
99% of Swedes.
• Approximately 99% of Swedes are served by
wastewater treatment plants
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• The number of people with access to clean
water has doubled in the last 20 years.
• 1.1 billion people in the world still do not have
access to safe water. This is nearly 20% of the
population.
• The number of people with access to clean
water has doubled in the last 20 years.
• 1.1 billion people in the world still do not have
access to safe water. This is nearly 20% of the
population.
Clean water
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The UN estimates
that by 2025, 75% of
the world population
won’t have reliable,
clean water.
The UN estimates
that by 2025, 75% of
the world population
won’t have reliable,
clean water.
Water future
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Water Resources
• Over the last century
• Human population has increased 3x
• Global water withdrawal has increased 7x
• Per capita water withdrawal has increased 4x
• About one-sixth of the world’s people don’t have
easy access to safe water
• Most water resources are owned & managed
by governments as publicly owned resources
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Water issue
Characteristic of Water Issues
• Water is an issue of many sectors such as
industry, environment, agriculture, etc
• It is the fundamental issue related to the human
security and social and economic development
• The strong leadership and commitment of the
national leaders are essential.
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Global Water Issue
2.6
billion
not have access to proper sanitation facilities
(JMP Report, UNICEF/WHO 2006)
1.1
billion
not have access to proper drinking water
facilities (JMP Report, UNICEF/WHO 2006)
3.8
million
People die each year of water related
diseases(UN World Water Dev, 2006)
7 billion People in 60 countries will be facing water
shortage by the middle of 21st
century (UN
World Water Development 2003)
2 billion will suffer from food damage stemming from
population increase & climate change by the
middle of the 21st
century (UNU-EHS 2004)
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Water Issues in Asia-Pacific
Water Supply and Sanitation
660 million people live without access to
safe drinking water.
1.9 billion people live without access to
basic sanitation.
Water-related Disaster
The region accounted for 80% of the world’s
total deaths due to water-related disasters
(2001-2005).
Water and Food
80% of water used for agriculture in the
region.
60% of the world’s population lives in the
region.
1986-1990
1991-1995
1996-2000
2001-2005
8,153
43,167
39,689
62,273
3,363
2,946
13,808
13,432
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
Numberofpeoplekilled
(5-yearaverage)
year
Number of people killed by water-related disaster
other regions
Asia-Pacific
60 %
80 %
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Too Little Water
Dry climate
Drought
Desiccation
Water stress
Acute shortage
Adequate supply
Shortage
Metropolitan regions with
population greater than 1 million
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source: Meeting the MDG drinking water and sanitation target : the urban and rural challenge of the decade
http://www.who.int/whosis/indicators/2007ImprovedAccessWaterSanitation/en/index.html
Access to Safe drinking water
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Improved Drinking
Water Sources
Unimproved Drinking
Water Sources
-Piped water into
dwelling, plot or yard
-Public tap/standpipe
-Tubewell/borehole
-Protected dug well
-Protected spring
-Rainwater collection
-Unprotected dug well
-Unprotected spring
-Cart with small
tank/drum
-Bottled water
-Tanker-truch
-Surface water (river,
dm, lake, etc)
Access to Safe drinking water
89. Making earth little softer
source: Meeting the MDG drinking water and sanitation target : the urban and rural challenge of the
decade
http://www.who.int/whosis/indicators/2007ImprovedAccessWaterSanitation/en/index.html
Access to improved Sanitation
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Improved Sanitation
Facilities
Unimproved Sanitation
Facilities
-Flush or pour-flush to
piped sewer system,
septic tank and pit
latrine
-Ventilated improved pit
latrine
-Pit latrine with slab
-Composting toilet
-Flush or pour-flush to
elsewhere
-Pit latrine without slab
or open pit
-Bucket
-Hanging toilet / latrine
-No facilities or bush or
field
Access to improved Sanitation
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Scarcity
1/3 of the world’s population live in basins that have to deal with water scarcity
We already inhabit a water scarce world
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Most hungry and poor people live where water
challenges pose a constraint to food production
Hunger Goal Indicator: Prevalence of undernourished in
developing countries, percentage 2001/2002 (UNstat, 2005)
The semi-arid and arid tropics: 840 million malnourished people remaining
Challenge
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Water Insecurity
Where do you feel there are areas in the world
that have issues of water Insecurity
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Water Security Crisis
• 2nd world water forum in 2000 deemed water a
key issue
• Health, welfare and livelihoods depend on
secure supplies
• Demand and misuse are high
• World water forum
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Asia and Pacific
• 1/3 of pop’n lacks access to clean drinking
water
• 500,000 infant related deaths through diarrhoea
• Levels of bacteria from human sources is 10x
higher than recommended levels
• Agriculture accounts for 90% of freshwater
withdrawals in S. Asia
• Aquifer depletion in Asia has reduced water
availability per capita by over half
• Withdrawals in W. Africa far exceed natural
replacement levels
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Africa
• 25 out of the 57 countries will face either water
stress or scarcity by 2025
• Over 300 million lack access to clean water
• Sub Saharan Africa this is much worse with over
51% without safe water and 41% without
adequate sanitation
• Agriculture accounts for 88% of all groundwater
removed and has no protection
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Europe and Central Asia
• Lack of access to clean water in E. Europe and
Central Asia
• Over half of all European cities over-exploit their
groundwater reserves
• Declining water quality in countries with
groundwater pollution (Aral Sea) – the Med and
Scandinavian Lakes
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Latin America & Caribbean
• Groundwater contamination and depletion from
industrial, agriculture and mining waste
• Poor sanitation on 2% of sewage is treated in
Latin America
• Economic Scarcity with conflict over access and
use
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North America
• Aquifer depletion in increasing due to urban
pop’n growth, develp’t of industry and
agriculture (Cotton in Texas)
• Water pollution from agricultural runoff has
contaminated some surface waters. (Salton
Sea)
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Emerging pattern
• The balance between human demand and
availability is precarious
• Access to clean water is not always guaranteed
when it should be a fundamental right
• Pop’n growth especially in the third world mean
prospects are not good.
• UN's world water development report
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Millennium Development Goals
• In 2000 had a target to halve by 2015 the
proportion of people without access to
sustainable water supplies
• By 2005 only 12% of developing countries had
managed to do this
• In some LEDC’s fresh and waste water aren’t
even separated. (Cholera and dysentery)
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How water is used
• In the western US, irrigation makes up 85% of
all water use
• 50% to grow food for livestock
• 35% to grow crops
• Not sustainable…cost of water is heavily
subsidized by the federal government
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Key Areas-Direct Operations
• Virtually all business organizations utilize water
in the production of their goods & services, the
extent of use varies
• For instance, water-infrastructure companies
play a direct role in working with governments
and municipalities to manage water and
wastewater systems.
• In other cases, water is a primary ingredient in
an organization’s final product. Water is also
crucial in the manufacturing or development
process of many companies. In still others,
water is a primary resource in the supply chain.
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Key Areas-Direct Operations
• In areas of water stress, rapid industrialization
place significant demands on water resources.
• Therefore, we pledge to undertake the following
actions as appropriate & during the period
1.Conduct a comprehensive water-use
assessment (audits) to understand the extent to
which the company uses water in the direct
production of goods and services.
2.Set targets for operations related to water
conservation and waste-water treatment,
framed in a corporate cleaner production and
consumption strategy.
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Key Areas-Direct Operations
3. Seek to invest in and use new technologies to
achieve these goals.
4. Raise awareness of water sustainability within
corporate culture.
5. Include water sustainability considerations in
business decision-making – e.g., facility-siting,
due diligence, and production processes.
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What have we learnt
• There is no life without water
• Extremely small % of fresh & usable water is
available for human being out of total stock
• That water is a global issue and not just within
certain countries
• That lack of water is not the only issue, but also
water insecurity and water stress
• Access to sanitation is linked to poverty
• Development can hinder water quality, access
and supply
• Using water carefully could minimize the
scarcity
Organisms are composed 70%-95% of water Supportive external environment for aquatic organisms Cellular medium within which biochemical reactions can occur Transport medium for food, oxygen, and other things needed by cells Means of support-Turgid plant cells /Hydrostatic animal support systems
Tamilnadu used more than 50% of Ground water resources.
On Water Consumption: (Source: Every Body Counts, Every Drop Matters, UN Classroom Resource Guide)
On Water Usage: (Source: Jefferson County Water Issues; Ecological Integrity: Integrating Environment, Conservation and Health (Island Press, Washington DC, 2001)
Feel free to print the slide for each team. Make them submit it back with the answers on the back perhaps so the questions aren’t floating round if you have other classes doing this activity. After they submit the answer, document their points on the page for their records and back up for you. They should keep this in a team notebook.
More water facts that can be added to the slide show and tests if desired. (Source: http://www.epa.gov/reg5rcra/wptdiv/p2pages/water.pdf) EARTH’S TOTAL WATER SUPPLY Oceans (saltwater) = 97.2% Fresh water = 2.8% EARTH’S FRESH WATER SUPPLY Ice caps and glaciers = 82.1% Groundwater (aquifers*) = 14.3% Surface water (lakes, rivers, and streams) = 2.4% Air and soil = 1.2%
(plasma being the main medium for excretory product transportation), and blood cells themselves. Blood Is made of white cells, red cells, platelets, and plasma. The plasma is the part that has water. Plasma is 55% of the blood. 90% of plasma is water. So….90% of 55% which is 49.5%. What percentage of blood is water? 90% of 55% which is 49.5% When spun in a centrifuge, the cells and cell fragments of blood are separated from the liquid intercellular matrix. Because the formed elements are heavier than the liquid matrix, they are packed in the bottom of the tube by the centrifugal force. The light yellow colored liquid on the top is the plasma, which accounts for about 55 percent of the blood volume and red blood cells is called the hematocrit,or packed cell volume (PCV). The white blood cells and platelets form a thin white layer, called the "buffy coat," between plasma and red blood cells. Plasma is the watery fluid portion of blood (90 percent water) in which the corpuscular elements are suspended. It transports nutrients as well as wastes throughout the body. Various compounds, including proteins, electrolytes, carbohydrates, minerals, and fats, are dissolved in it.
Whole Blood Centrifuged with Anticoagulant. PowerPoint. University of Delaware. 5 December 2008 <http://www.udel.edu/biology/Wags/histopage/illuspage/ipbh/peripherbloodppt.htm>.
http://nutrition.about.com/library/blwatercalculator.htm When one team reaches the bonus question, stop the class and give everyone the bonus question at the same time. Teams can work on this one as well as their current question. Have project manager provide the answer, listing each member and individual water intake, team tally. I had them print page 1 of 2 and write their names on it. Teams were using multiple computers to get the job done. They could copy and past the information into a word doc and label each member, but they would all have to use the same computer or send the information to one person.
Students would need nine sources here perhaps to gain full credit. I was not able to find one source that had all the information. The last question can be calculated by using the water lost in a day times the number of days you can survive without water.
Students could present this with a bar graph of body outlines with the water levels shaded in. Students could list the actions and the amount of water. Attach page of math calculations! Expect a professional looking graph for this, not a sketch. Eggling, Sue. Effects of Water Loss. Clackamas Community College. 8 December 2008 <http://dl.clackamas.edu/ch106-06/effects.htm>.
Students could present this with a bar graph of body outlines with the water levels shaded in. Students could list the actions and the amount of water. Expect a professional looking graph for this, not a sketch.
Most people have never thought about the above because they have NEVER been personally confronted with an extended shortage of fresh safe drinking water at any time in their lives. In many other countries, they think about this every day. A shortage of fresh safe drinking water is a daily problem Keep in mind that these numbers only represent what the human body needs on the inside. We haven’t even thought about washing your hands, brushing your teeth or bathing.
“ Olympic Science: The Hydration Race.” Popular Mechanics. August 2008. 68.
The State of the World's Freshwater: (Source: The United Nations, Division for Sustainable Development) <http://www.werise.us/allabout_facts.html>
The State of the World's Freshwater: (Source: The United Nations, Division for Sustainable Development) <http://www.werise.us/allabout_facts.html>
The State of the World's Freshwater: (Source: The United Nations, Division for Sustainable Development) <http://www.werise.us/allabout_facts.html>
JWF: The Asia-Pacific Water Forum is necessary, because the Asia-Pacific region is in water crisis (as shown) and demands immediate and concerted action.