<http://schema.org/about>
"Yesterday was World Water Day, but one man in Canada is stretching the day out and is dedicating the month of March to raising awareness of water scarcity. He's limiting his water consumption to 25 liters a day for all"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/canadian-celebrates-world-water-day-by-using-just-25-liters-of-water-8-of-north-american-average.html>