1. 66% of the human body is made up of water. At just 2% dehydration your performance decreases by around 20% . We should drink at least 1 ½ litres of water a day. Water to drink
2. 80% of all illness in developing countries is caused by water related diseases. 90% of wastewater in developing countries is discharged directly into rivers and streams without treatment. Water Diseases
3. Two thirds of our planet is covered by water. 97.5% of the water is saltwater. The majority of freshwater is beyond our reach, locked into polar snow and ice. Water World
4. The number of people with access to clean water has doubled in the last 20 years. 1.1 billion people in the world still do not have access to safe water. This is nearly 20% of the population. Clean Water