Water Scarcity in the 21st century: http://www.tandfonline.com/doi/pdf/10.1080/07900629948916 Published on July 13, 2014 10:10 by Amir Dakkak, Water Source - Founder and CEOWater Scarcity in the 21st century: http://www.tandfonline.com/doi/pdf/10.1080/07900629948916