• About 6,800 gallons of water is required to grow a day’s food for a family of four.
• Nearly 97% of the world’s water is salty or otherwise undrinkable. Another 2% is locked in ice caps and glaciers. That leaves just 1% for all of humanity’s needs — all its agricultural, residential, manufacturing, community, and personal needs.
• Unsafe water kills 200 children every hour.
• 80% of all illness in the developing world is water related.
• 30% of fresh water is in the ground.
• 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 was millions of years ago.
• An acre of corn will give off 4,000 gallons of water per day in evaporation.