what happen when water is over?

Our global water supply is becoming more of an issue every day. Even in developed nations, where a plentiful supply of water is sometimes taken for granted, the value of water is in­creasing among the people and their governments. HowStuffWorks has already found that we can't manufacture water, so what exactly will happen if we run out?­ It's ironic that on a planet that is 70 percent water, people don't have enough clean, safe water to drink. But the freshwater on Earth makes up just three percent of the water supply. And less than one percent is freely available; the rest is tied up in ice, as in icebergs, glaciers, and snowcaps. This means that all of the rivers, streams, lakes, aquifers and groundwater expected to sustain the 6,602,224,175 people on Earth make up less than one percent of the total water on the planet