River Pollution - Where is the Earth's Water?

Over 97% of all the water on Earth is salty and most of the remaining 3% is frozen in the polar ice-caps. The atmosphere, rivers, lakes and underground stores hold less than 1% of all the fresh water and this tiny amount has to provide the fresh water needed to support the Earth's population. Fresh water is a precious resource and the increasing pollution of our rivers and lakes is a cause for alarm.