Water water everywhere and not a drop to drink?

Slides:



Advertisements
Similar presentations
Fresh Water resources. Global Overview While 67% of Earths surface is covered by water, only less than 2.7% of global water is freshwater. Most of the.
Advertisements

Until recent years, you probably didn’t think much about water. It was always there when you wanted it: for drinking, washing your clothes, or taking.
Chapter 14 Water.
Oceans 97.2% All icecaps/glaciers2.0% Groundwater0.62% Freshwater lakes0.009% Inland seas/salt lakes0.008% Atmosphere0.001% All Rivers0.0001% Total %
 Necessary materials: PowerPoint Guide Teacher Information!
Our Society needs a better understanding
14.2 Conserving Groundwater Key Idea: Groundwater is an important resource whose availability is threatened by overuse and by pollution.
Water Supply and Water Users Water one of the most fascinating compounds on earth necessary ingredient for all living organisms.
Water FRESHWATER IS A SCARCE RESOURCE
Uses for Water Text pages Section Why care about water? Video (Short)Video Global Water Shortage:
Bodies of Water.
L69: Bell Ringers R69: Water Consumption L70: Aquifer Depletion R70: Population Growth & Water L71: Non-Point Source Pollution R71: Point Source Pollution.
Global Water Issues Part 1
Water Use and Management Chapter 17. Water Resources The hydrologic cycle constantly redistributes water Total: 370 billion billion gallons 500,000 km3.
Ecology of Lakes and Streams ( BIOL 435) Course Introduction What is Limnology? Hydrologic Cycle Why Care About Water?
Ch. 4.7, Beginning to Think Globally, and Ch. 4.8, Global Connections, pp
Chapter 11 Water Two kinds Salt water Freshwater We can only live a few days without water, but we can live a month without food.
15.4 Human Influences on the Hydrologic Cycle Runoff and the infiltration rate are greatly influenced by human activity. A major concern in many urban.
 Over 70% of our Earth's surface is covered by water ( we should really call our planet "Ocean" instead of "Earth"). Although water is seemingly abundant,
Soils & Groundwater VA SOL ES. 8 (a,c,d,e,f). What is SOIL?  Soil is dirt (bits of weathered rock) mixed with organic material.  Organic material is.
August 2008 Water Supply and Water Users Modified by Georgia Agricultural Education Curriculum Office June, 2002.
Clean water. Water and its importance in life Water is one of the most need for human life that human been cannot continue living without water because.
Uses and the Depletion of Freshwater. Uses of Water Most of the water used in homes and industries is for washing and flushing away unwanted materials.
Water Supply and Water Users Water one of the most fascinating compounds on earth necessary ingredient for all living organisms.
The Distribution of Water 8 th Grade Curriculum –Southwest Middle School.
Race 2 Reduce. Map of Planet Earth Water Covers ¾ of Planet Earth. Facts About Water.
Freshwater Resources Chapter 7. Water: A Vital Resource Water is fundamental to life as we know it. Water is fundamental to life as we know it. A total.
TESC 211 The Science of Environmental Sustainability Autumn Quarter 2011 UWT.
Water Supply and Water Users SGC FFA Mr. Hochreiter.
Groundwater Pollution
Unit 4 Lesson 1 Human Impact on Water
Water Supply and Water Users
WATER.
Unit 5 Lesson 3 Human Impact on Water
Unit 4 Lesson 1 Human Impact on Water
Water reserves, water pollution, Causes and solutions
Freshwater Resources Chapter 7.
WATER Water Resources.
Resource: Water.
WATER.
Water Supply.
Water: The Indispensable Resource
Where in the World is the Water?
DO NOW Pick up notes and Review #32. Turn in Review #31.
EARTH’S WATER SUPPLY.
Water & Human Impact: Unit 4
Unit 5: Fresh and Salt Water Systems
Water supply: Will our taps run dry?
Water.
DO NOT UNPACK YOUR THINGS! Sit quietly and wait for further instruction.
Water.
Water – The Important Resource
Resource: Water.
Water Geography of Canada.
Water Resources.
WATER.
PAPER 2: Challenges in the human environment
Water Resources Q: What water can we use?
Ch 11 Water Page 289.
Water Use.
Fresh Water and River Systems
What three places can you find Earth’s surface water?
Fresh water as a natural resource
Water Use.
Water, Water, Everywhere!
Water, water … everywhere?
Water: The Indispensible Resources
Water, water … everywhere?
Resource: Water.
Presentation transcript:

Water water everywhere and not a drop to drink? Tracy Webb, Horton High School, Wolfville, NS

Water has affected our earth and all living organisms for over 3 Water has affected our earth and all living organisms for over 3.5 billion years…

The Refreshing Water Cycle

Surface Water All fresh water that is above ground is called surface water like ponds, lakes, streams, and rivers. In 1969, a spark from a passing train caused the Cuyahoga River to catch fire… http://www.lerc.nasa.gov/WWW/K12/fenlewis/History.html

"The Cuyahoga will live in infamy as the only river that was ever declared a fire hazard." - Congressman Louis Stokes

Groundwater Water percolates through the soil to become part of the water table as groundwater. (60x the volume of water compared to the surface.) Large areas of groundwater found in underground rock formations are called aquifers – they take millions of years to form. Accessible fresh water in lakes, rivers and aquifers is only 1/10th of 1% of all Earth's water… Over half of this water is tapped, and almost all areas suffer at least one of three major threats to the water supply: pollution, overexploitation, and political conflict.

Crisis? What crisis?... in Canada? We have ample rainfall (which is the only way fresh water is replenished). We have many sources of fresh water – the Great Lakes is the largest source in the world; we have river systems seemingly everywhere you turn… Our water is safe to drink – we have no worries about lack of water or safety… REALLY? Hmmmm…not so fast… And what about the rest of the world? How much water do we really have???

All Water on Earth Oceans_________________97.24 % All ice caps/glaciers______ 2.14 % Groundwater___________ 0.61 % Freshwater lakes_________0.009 % Inland seas/salt lakes_____ 0.008 % Soil Moisture____________ 0.005 % Atmosphere_____________ 0.001 % All rivers________________0.0001 % Total_________________100 % Useable Freshwater on Earth = 2.76 %

Consider how water is used indirectly - It takes 4921 L of water to produce one serving of hamburger…400 000 L to make a car. Around the world, the computer industry uses over 1.5 trillion L of water and produces 300 billion L of wastewater every year… One flush of a toilet uses the same amount of water that is obtained in a day by a person in 30 of the world's poorest countries…

Highest % of industrial water use occurs in Europe and North America. Who uses the water? Highest % of industrial water use occurs in Europe and North America. Agriculture (re)uses ~67% of the water in the world through irrigation. Water management projects bring water to dry habitats for recreation, drinking, or for electricity. Conflicts over control of water has been a problem all over the world and as our need for fresh water increases, so will the issue of water rights.

“Although two thirds of our planet is water, we face an acute water shortage. The water crisis is the most pervasive, most severe, and most invisible dimension of the ecological devastation of the earth.” Vandana Shiva, Water Wars, 2002 In Mexico City, groundwater pumping has lowered the city's water table in places by more than 60 feet in 50 years, causing parts of the city to sink. China's Yellow River, which irrigates 18 million acres, ran dry at its mouth in 10 of the past 12 years. More than 80 countries, including the United States, face water shortages…

Hey – but we have lots of water – we can SELL it!!! In 2000, the World Water Forum declared that water was a commodity – a salable product on the world market… So let’s privatize water! KA-CHING!!! Privatized water is delivered to those who can pay for it, such as wealthy cities, individuals, and water-intensive industries, like agriculture and high-tech. Does this sound like a GOOD IDEA to YOU?

Water For Sale? The United Nations declared that water is a common good and that access to safe, clean water is a basic human right…it is NOT for sale! Canadian Consumption – we bought more than 700 million L of bottled water last year (spending more than $500 million). At present there is not adequate legislation in place to protect water supplies in Canada from pollution and depletion.

Global Dynamics The water industry is touted by the World Bank as a potential trillion dollar industry. Water has become the “blue gold” of the 21st century. Global consumption of water is doubling every 20 years, more than twice the rate of human population growth. Right now, more than 1.6 billion people do not have regular access to safe drinking water. Demand for water will exceed availability by 56 %.

Ben’s video…recycling of water bottles…

Water quality is now considered the most important water related problem in Canada… Globally, 25 million people have fled their homes because their water supply was polluted or depleted…

It takes 4921 L of water to produce one serving of hamburger… Around the world, the computer industry uses 1.5 trillion L of water and produces 300 billion L of wastewater every year…

Why wait ‘til the LAST DROP?