The largest single cause of human disease, the cause of 80 percent of illness, is water-borne pathogens. This year 5.2 million people will die because of bad water. Yet in rich countries we use drinkable water to wash our cars and flush our toilets. I think in the next century you will see that all but disappear. Water will become more costly than oil - Dean Kamen http://edition.cnn.com/2005/TECH/05/11/visionary.kamen/
The 52:52:52 project, launching on this site and on social media in 2025, will help you address 52 issues with 52 responses over 52 weeks.