How much Fresh Water Is there?

What will happen if when there not enough fresh water? There are a little amount of fresh water that we can use. Actually, only about 3/100 of Earth's water is fresh. but we can't use all of 3/100 we can use only 1% of that so there is a little amount of fresh water so this 1% fresh that we can use only for human in the world. People in the world used this water for drink, take a bath, clean a food and wash a dishes. and there are 2% of fresh water left that we can't use so the amount of fresh water that we can use and fresh water that we use is not the same so it is so difficult for people that water is not go through like Sahara desert. people at there had a difficult live to live at there because there is so very little of amount of fresh water that we can use. and the fresh water that we can't use are found in frozen ice caps and glaciers isn't readily available. and there is also fresh water under the ground, but the groundwater is very deep down so is not easy to reach.