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Post June 12, 2014

Water Use: Virtual Water

People use water for direct and indirect purposes. Direct purposes include bathing, drinking and cooking. In most developed countries, urban water users are connected to water through their municipal water delivery system and their home plumbing system. People turn on the tap, water comes out and they use it. Indirect water (also called “virtual water”) use refers to the water used to produce the goods and services others need and enjoy.

For example, think about the water needed to make a box of cereal so you can enjoy a bowl of corn flakes? The flakes are crispy and dry, so they may wonder how water is involved at all. To grow, manufacture and package food products such as corn flakes takes a huge amount of water. The corn was almost certainly irrigated while it was being grown, and the factory that manufactures the flakes used water in almost every step of the process, from cleaning the corn before the manufacturing process started to rinsing away what was left behind. Even the paper box that holds the flakes required large quantities of water to produce.

How much water does it take to make an avocado: 43 gallons

A gallon of orange juice: 272.2 gallons

A 200gm bag of potato chips: 48.9 gallons

A pair of jeans: 2,866 gallons

A pound of beef: 1,581 gallons

A cheeseburger (1/3 pound beef patty, I slice of cheese, slice of tomato, a lettuce leaf, and bun): 698.5 gallons

A pound of pork sausage: 1,176.7 gallons

A pound of butter: 3,602.3 gallons

One large egg: 22.8 gallons

One pound of rice: 200 gallons

Figures obtained from The Green Blue Book: The Simple Water Savings Guide to Everything in Your Life by Thomas M. Kostigen

  • Print-friendly
  • USGS: Total Water Use in U.S.
  • USGS: How much water does it take to grow a hamburger?
  • USGS: How much is your daily indoor water use?

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Product May 21, 2014

KIDS: Water Every Drop Counts

For ages 8-12, this colorful, 16-page activity booklet is packed with fun and engaging activities about where water comes from, where it goes, and how important it is to our lives. Students explore the hydrologic cycle, worldwide water quantity, basic water quality issues, water and personal health and how water connects people worldwide. All activities reinforce the message that when it comes to water, every drop counts! 

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Post June 12, 2014
  • USGS: Total Water Use in U.S.
  • USGS: How much water does it take to grow a hamburger?
  • USGS: How much is your daily indoor water use?
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