The World Wildlife Fund (WWF) reports some 1.1 billion people worldwide lack access to water, and a total of 2.7 billion people find water-scarce at least one month of the year. Why are we running out of water? There is an abundance of water, however, the problem is having access to a supply of potable water, or water that is fit for consumption. Even in countries with adequate water resources, water scarcity is still not uncommon. Water shortages can be caused by collapsed infrastructure, failed distribution systems, pollution, poor management, or other economical factors.