If we really want to have enough water to support a future global population of 9 billion people we should protect the world's farmers, because they play such a crucial role in managing 92 percent of the water we use, by producing the world's food.
As people learn about their virtual water use, they're realizing that water isn't an infinite resource and that there is plenty we can do to use water more efficiently -- which benefits both the environment and the wallet.
If bread is the staff of life, water is the ground we walk on. None of us can survive without water. Without water, the grain needed to make bread or any other food item would never even get harvested.