imagine going to get a drink of water and discovering that the faucet is dry; or jumping into the shower to cool off on a steamy hot day and discovering that there's on water...most of us simply take water for granted. We think there's plenty of-in oceans, lakes, and streams. But this is not the case. The water we are using now is the very same water that the dinosaurs used millions of years ago. It is simply recycled over and over again. There will never be any more water on Earth than there is now.
Most of the water on our planet(97%) is salt water stored in oceans. The remaining 3 percent is freshwater-and most of that is locked up in ice caps and glaciers. In fact,less than 1 percent of the planet's water is usable freshwater. It's alarming that at the projected rate of population growth, humanity will use up more than 70 percent of all accessible freshwater by 2025.
Water is essential to people is more ways than we might think. We need water for cooking, bathing,transportation, and recreation. We eat aquatic plants and fish. We use water to irrigate our crops, to produce hydroelectric power, and to manufacture products. Water is indispensable for human health and well-being. People can live for two months without food, but will die in lees than a week without water.