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Introduction to water

Introduction to water. What is the hydrological cycle?. It refers to the continuous movement of water from the Earth’s surface to the atmosphere and back again. SKETCHING AND ANNOTATION EXERCISE. http://www.youtube.com/watch?v=0_c0ZzZfC8c. Distribution of water.

allistair-emerson
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Introduction to water

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  1. Introduction to water

  2. What is the hydrological cycle? • It refers to the continuous movement of water from the Earth’s surface to the atmosphere and back again.

  3. SKETCHING AND ANNOTATION EXERCISE http://www.youtube.com/watch?v=0_c0ZzZfC8c

  4. Distribution of water

  5. http://media.economist.com/sites/default/files/cf_images/20080920/CIR935.gifhttp://media.economist.com/sites/default/files/cf_images/20080920/CIR935.gif

  6. What is water scarcity and why IS there water scarcity?

  7. Water “scarcity” SUPPLY • An economic principle • Where supply > demand. :. We have a water shortage/constraint. DEMAND

  8. How can there be water scarcity when 75% of the earth’s surface is made of water?

  9. Only 1 percent of total amount of water on earth is fresh water http://snr-1349.unl.edu/images/waterdist.gif

  10. Think: what are the factors affecting water supply and demand?

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