Water Did you know?
Water Reserves on Earth <ul><li>The total volume of water on Earth is about 1.4 billion km3. The volume of freshwater reso...
 
<ul><li>Of these freshwater resources, about 24 million km3 or 70 percent is in the form of ice and permanent snow cover i...
<ul><li>Around 30 percent of the world's freshwater is stored underground in the form of groundwater (shallow and deep gro...
 
Water usage <ul><li>How the world uses freshwater:  ・  about 70 percent for irrigation  ・  about 22 percent for industry  ...
<ul><li>Water withdrawals are predicted to increase by 50 percent by 2025 in developing countries, and 18 per cent in deve...
<ul><li>The UN suggests that each person needs 20-50 litres of safe freshwater a day to ensure their basic needs for drink...
 
How much water do you need every day? <ul><li>Think about it. </li></ul><ul><li>What do you need water for? </li></ul><ul>...
<ul><li>The daily drinking water requirement per person is 2-4 litres </li></ul><ul><li>but it takes 2 000 to 5 000 litres...
 
Water contaminants <ul><li>Every day, 2 million tons of human waste are disposed of in water courses. </li></ul><ul><li>So...
<ul><li>More children die every year from water borne infections than the combined numbers that die from HIV/AIDS, malaria...
<ul><li>Projected increases in fertilizer use for food production and in wastewater effluents over the next three decades ...
<ul><li>Wastes from industrial runoff into lakes, rivers and streams include asbestos, mercury, arsenic lead and many othe...
Consequences <ul><li>Half of the world's wetlands have been lost since 1900. </li></ul><ul><li>Source: WWAP   </li></ul>
<ul><li>85 First Nations communities in Canada have water systems that were in a high-risk category </li></ul><ul><li>Clos...
<ul><li>The township of Robson (across the river from Castlegar) has had a “boil water” advisory for at least 10 years. </...
<ul><li>Canada has rejected a UN initiative to declare water a human right. </li></ul><ul><li>Is that right? </li></ul>
Discussion Questions <ul><li>Is water the source of life, why? </li></ul><ul><li>What properties of water make water the p...
Water treatment <ul><li>How does …. </li></ul>
<ul><li>Become…… </li></ul>
<ul><li>Is water a right? </li></ul><ul><li>Or is it a privilege? </li></ul><ul><li>How can we make fresh, clean water acc...
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Water Intro

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Water Intro

  1. 1. Water Did you know?
  2. 2. Water Reserves on Earth <ul><li>The total volume of water on Earth is about 1.4 billion km3. The volume of freshwater resources is around 35 million km3, or about 2.5 percent of the total volume. </li></ul><ul><li>Source: United Nations Environment Programme (UNEP) </li></ul>
  3. 4. <ul><li>Of these freshwater resources, about 24 million km3 or 70 percent is in the form of ice and permanent snow cover in mountainous regions, the Antarctic and Arctic regions. </li></ul><ul><li>Source: UNEP </li></ul>
  4. 5. <ul><li>Around 30 percent of the world's freshwater is stored underground in the form of groundwater (shallow and deep groundwater basins up to 2 000 metres, soil moisture, swamp water and permafrost). </li></ul><ul><li>Freshwater lakes and rivers contain an estimated 105 000 km3 or around 0.3 percent of the world's freshwater. </li></ul><ul><li>Source: UNEP </li></ul>
  5. 7. Water usage <ul><li>How the world uses freshwater: ・ about 70 percent for irrigation ・ about 22 percent for industry ・ about 8 percent for domestic use </li></ul><ul><li>Source: World Water Assessment Programme (WWAP) </li></ul>
  6. 8. <ul><li>Water withdrawals are predicted to increase by 50 percent by 2025 in developing countries, and 18 per cent in developed countries. </li></ul><ul><li>Source: Global Environment Outlook: environment for development (GEO-4) </li></ul>
  7. 9. <ul><li>The UN suggests that each person needs 20-50 litres of safe freshwater a day to ensure their basic needs for drinking, cooking and cleaning. </li></ul><ul><li>Source: World Water Assessment Programme (WWAP) </li></ul><ul><li>More than one in six people worldwide - 894 million - don't have access to this amount of safe freshwater. </li></ul><ul><li>Source: World Health Organization (WHO) and United Nations Children Fund (UNICEF) Joint Monitoring Programme on Water Supply and Sanitation (JMP) </li></ul>
  8. 11. How much water do you need every day? <ul><li>Think about it. </li></ul><ul><li>What do you need water for? </li></ul><ul><li>Drinking? </li></ul><ul><li>Cooking? </li></ul><ul><li>Cleaning? </li></ul><ul><li>Flushing your toilet? </li></ul>
  9. 12. <ul><li>The daily drinking water requirement per person is 2-4 litres </li></ul><ul><li>but it takes 2 000 to 5 000 litres of water to produce one person's daily food. </li></ul><ul><li>Source: Food and Agriculture Organization of the United Nations (FAO) </li></ul>
  10. 14. Water contaminants <ul><li>Every day, 2 million tons of human waste are disposed of in water courses. </li></ul><ul><li>Source: World Water Assessment Programme (WWAP) </li></ul><ul><li>In developing countries, 70 percent of industrial wastes are dumped untreated into waters where they pollute the usable water supply. </li></ul><ul><li>Source: WWAP </li></ul>
  11. 15. <ul><li>More children die every year from water borne infections than the combined numbers that die from HIV/AIDS, malaria, war and car accidents </li></ul><ul><li>Source: BCTF Social Justice Newsletter, Winter 2010 </li></ul>
  12. 16. <ul><li>Projected increases in fertilizer use for food production and in wastewater effluents over the next three decades suggest there will be a10-20 per cent global increase in river nitrogen flows to coastal ecosystems. </li></ul><ul><li>Source: Global Environment Outlook: environment for development (GEO-4) </li></ul>
  13. 17. <ul><li>Wastes from industrial runoff into lakes, rivers and streams include asbestos, mercury, arsenic lead and many others. </li></ul><ul><li>Wastes from agriculture that seep into groundwater and contaminate water reserves include herbicides, insecticides fungicides, which are all toxins to humans and other animals. </li></ul>
  14. 18. Consequences <ul><li>Half of the world's wetlands have been lost since 1900. </li></ul><ul><li>Source: WWAP </li></ul>
  15. 19. <ul><li>85 First Nations communities in Canada have water systems that were in a high-risk category </li></ul><ul><li>Close to 100 communities have “boil water” advisories on them </li></ul><ul><li>Source: BCTF Social Justice Newsletter 2010 </li></ul>
  16. 20. <ul><li>The township of Robson (across the river from Castlegar) has had a “boil water” advisory for at least 10 years. </li></ul>
  17. 21. <ul><li>Canada has rejected a UN initiative to declare water a human right. </li></ul><ul><li>Is that right? </li></ul>
  18. 22. Discussion Questions <ul><li>Is water the source of life, why? </li></ul><ul><li>What properties of water make water the prime ingredient of life? </li></ul><ul><li>What is the role of water in supporting life? </li></ul><ul><li>Is water essential for life? </li></ul><ul><li>Is there a life form involving no water? </li></ul>
  19. 23. Water treatment <ul><li>How does …. </li></ul>
  20. 24. <ul><li>Become…… </li></ul>
  21. 25. <ul><li>Is water a right? </li></ul><ul><li>Or is it a privilege? </li></ul><ul><li>How can we make fresh, clean water accessible to everyone on our planet? </li></ul><ul><li>What kind of illnesses are caused by unsafe water? </li></ul><ul><li>How can we prevent water borne illnesses? </li></ul>

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