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2.1 Water Supply & Demand

Published on Nov 18, 2015

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PRESENTATION OUTLINE

HOW PEOPLE USE WATER

  • Household purposes
  • Industry
  • Transportation
  • Agriculture
  • Recreation
Photo by @Doug88888

IN THE HOME

  • Wash your face
  • Brush your teeth
  • Flush the toilet
  • Drinking
  • Make food
Photo by Werner Kunz

INDUSTRY & TRANSPORTATION

Photo by ecstaticist

ARGICULTURE

  • Irrigation: supplying water to to areas of land to grow crops
  • Gardening & Farming
  • Irrigation is the most used water source in the U.S.

RECREATION

  • Swimming
  • Fishing
  • Beach
  • Skiing
  • Skating
Photo by monkeyc.net

CONSERVING WATER

  • Reducing water use
  • Recycling water
  • Reusing water
Photo by nickwheeleroz

IN THE HOME

  • Take shorter showers
  • Turn off faucet when not in use
  • Larger loads of laundry at a time
Photo by stevendepolo

INDUSTRY

  • Paper mills = 1/2 water used
  • Cooling pools to reuse water

AGRICULTURE

  • Pipes to conserve water
  • Sprinkler irrigation: sprays water from overhead
  • Drip irrigation: tiny drops of water close to ground

FRESH WATER FOR THE FUTURE

  • Desalination
  • Melting Icebergs
Photo by lawtonives

DESALINATION

  • Fresh water from salt water
  • Boiling water
  • Freezing water
  • Filter the water
  • Very expensive process

MELTING ICEBERGS

  • Millions of liters of pure water
  • Could affect the weather
  • Could affect living things
Photo by Philip Oyarzo