Since surface water is easier to reach, it’s become the most common way for humans to access clean water. 97% of the earth's water is found in the oceans (too salty for drinking, growing crops, and most industrial uses except cooling). Water scarcity. 80% of the world’s daily water usage comes from surface water and makes up the majority of the water used for irrigation and public supply. Water withdrawal - taking water from groundwater or surface-water source and transporting it to a place of use. Retrieved from https://factbook.ecc-platform.org/, Groundwater Association. If you've found this article to be useful and are interested in learning more, be sure to sign up for our newsletter. The amount of sodium in seawater is much more concentrated than what the body can safely process, and will therefore be unable to eliminate it before being hydrated. Mapping environmental conflicts and cooperation. Groundwater with high porosity and permeability value can travel quickly, and are known as aquifers. What Percentage of the Earth's Water Is Drinkable? • Four farmers were hacked to death in northeast Tanzania over the disputed Pangani River Basin in 2013 (Factbook). Note: Be sure to wipe water off the floor if spills occur during this activity. Only 0.03% of one cup is in rivers and fresh water lakes. The U.S. Bureau of Land Management recently proposed to start fracking across several counties in California. Before class starts, fill the 5-gallon bucket with water. It is no wonder that in developing regions where clean water sources cross national boundaries, it often finds itself in conflict among those trying to secure a means to a healthy living. How Much Water is on and in the Earth. Of that 3%, 2.6 of it is locked away in glaciers and polar ice caps. Water scarcity. 2.5% of the earth's fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth's surface to be extracted at an affordable cost. Retrieved from http://www.un.org/waterforlifedecade/scarcity.shtml, World Atlas. • In 2010, dozens of people were killed in Pakistan’s tribal region due to a water dispute which lasted over two weeks. All water is accessible, but not all water is easily accessible. A leak that fills up a coffee cup in 10 minutes will waste over 3,000 gallons of water in a year. All water is contaminated, but not all contaminated water is bad. (2017, April 10). This supply is continually collected, purified, and distributed in the natural hydrologic (water) cycle. Retrieved from http://www.ngwa.org/Fundamentals/teachers/Pages/information-on-earth-water.aspx, National Geographic. Retrieved from https://oceanservice.noaa.gov/facts/drinksw.html, Perlman, H. (2016, December 2). Thank you for your report. Saline water can be desalinated for use as drinking water by going through a process to remove the salt from the water. About 77 billion gallons of groundwater are used each day. There are about 10 million acres of lawn in the U.S., which requires 270 billion gallons of water every week. Anything less that 100% is considered soil mixture. Gallons of Drinkable water on Earth: 2.147178437e+21 Conversion of Gallons to Ounces: 1 Gallon = 128 Ounces, Total of 5.359357378752e+32 Ounces Average person consumes: 64 Ounces of Drinking Water per day The amount of rock space and the ability for water to travel through it is known as porosity and permeability. Surface water is any body of water which is on the earth’s surface: lakes, rivers, streams, and reservoirs. Retrieved from, United Nations. Base flow is when the river collects its water from water-saturated areas in the ground, adding to its volume. Information on Earth's water - National Groundwater Association. Aquatic Project WILD; Western Regional Environmental Education Council, Folsom Dam Fact Sheets; Bureau of Reclamation, Layperson's Guide to The American River; Water Education Foundation. There are 263 rivers and countless aquifers worldwide which either cross or demarcate geopolitical boundaries. Its sparked many protests by local residents as the proposal involves fracking on land where residential communities, wildlife, and children’s schools exist. A gallon of paint or a quart of motor oil can seep into the earth and pollute 250,000 gallons of drinking water. 66%. A spilled gallon of gasoline can pollute 750,000 gallons of water. 1%. Have the other materials nearby in a place where the whole class can observe. 80% of water withdrawn in the U.S. is used for cooling electric power plants and for irrigation. Volume of drinkable water on earth: 1% of Water, 195,000,000,000 * 0.01 = 1,950,000,000 cubic miles Conversion of Cubic Miles to Gallons: 1 Cubic Mile = 1.101117147e+12 Gallons of Drinkable water on Earth: 2.147178437e+21 Conversion of Gallons to Ounces: 1 Gallon = 128 Ounces, Total of 5.359357378752e+32 Ounces Retrieved from http://www.cnn.com/2010/WORLD/meast/09/19/pakistan.water.dispute/, Factbook. Groundwater - water which infiltrates into the ground through porous materials deeper into the earth.
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