Most of Earth is covered with water, but only 5% of it is fresh water. Because of this we are drawing from underground aquifers faster than they can recharge. Also, a lot of the water we have is usually polluted by sewage and other wastes that make “natural” water unsafe to drink. Water management has been critical to development in countries for thousands of years. The average American uses 100 times as much water as they should. Ways to save it are by fixing leaks, installing low-flow toilets and water-miser washers, turning off the shower while you lather, and so on. Clean water is not a free gift of nature anymore. It is a resource that all humans must preserve by being cautious and making judicious investments.