While it’s true that a majority of the world is covered with water, most of that water isn’t usable. Although 70% of the world’s surface is covered by water, 97.5% of that is saltwater. Of the total water resources on earth, only 1% is available for human use. This measly 1% is needed for use by every single living thing on earth. Sadly, even less of that percentage is truly available because of leakage and pollution. In developed countries, leaks are a leading cause of the loss of fresh water resources, while pollution plagues usable water in many developing countries.