80 likes | 138 Vues
Water Sustainability: The Importance of Water. Unit 2 Lesson 1 PowerPoint 1. What is sustainability?. The ability to maintain or sustain the needed amount of resources for a given population.
E N D
Water Sustainability: The Importance of Water Unit 2 Lesson 1 PowerPoint 1
What is sustainability? • The ability to maintain or sustain the needed amount of resources for a given population. • Ex. In a given population, an individual requires 2 units of food per day to survive. Sustainability is the populations ability to sustain that required level of food for survival.
Is Water Sustainability an Issue? ∙America? ∙Middle East? ∙Mexico? ∙Africa?
How much water do you use in a day? • http://www.youtube.com/watch?v=On9WRrFHVjY
Freshwater Facts • http://environment.nationalgeographic.com/environment/freshwater/freshwater-101-interactive/ • 2.5% of all Earth’s water is freshwater. • Of that 2.5%... • -60% is trapped in glaciers and ice caps • -10% is found in surface waters, including lakes and rivers • -30% is found in groundwater
Hidden Water • Water is important, because we need it for everything: The clothes we wear, the food we eat, etc. All of these things rely on water. You could say it is our most valuable resource. • http://environment.nationalgeographic.com/environment/freshwater/freshwater-101-interactive/
Water Waste • How often have you wasted water? As Americans, do we understand the value of clean water? • http://www.youtube.com/watch?v=-qpbWZRC_dw