80% of all illness in the developing world is water-related. Up to 50% of water is lost through leaks in cities in the developing world. In Nairobi urban poor pay 10 times more for water than in New York.

In some countries, less than half the population has access to clean water. $260 billion is the estimated annual economic loss from poor water and sanitation in developing countries. 40 billion hours are spent collecting water in Africa alone.

The average cost for water supplied to a home in the U.S. is about $2.00 for 1,000 gallons, which equals about 5 gallons for a penny. A person can live about a month without food, but only about a week without water. Water expands by 9% when it freezes.

There is about the same amount of water on Earth now as there were millions of years ago. The length of the side of a cube that could hold the Earth’s estimated total volume of water in km = 1150.