Water Technology

http://science.howstuffworks.com/environmental/green-tech/sustainable/10-innovations-water-purification.htm

http://www.theguardian.com/sustainable-business/new-water-technologies-save-planet

http://inhabitat.com/6-water-purifying-devices-for-clean-drinking-water-in-the-developing-world/

http://www.fastcompany.com/1480445/21-tata-swach-worlds-cheapest-water-purifier

http://www.scidev.net/asia-pacific/innovation/news/stick-filters-out-99-per-cent-of-bacteria-from-water.html

http://mashable.com/2011/10/26/clean-water-innovations/

https://www.singularityweblog.com/the-water-plasma-purifier-clean-safe-water-for-billions-of-people/

https://www.engineeringforchange.org/news/2012/03/11/ten_low_cost_ways_to_treat_water.html