National Resource Defence Council  http://www.nrdc.org/

Environmental Defense Fund  http://www.edf.org/home.cfm

Sierra Club  http://www.sierraclub.org/

Ian Somerhalder Foundation  http://www.isfoundation.com/

Tree Hugger  http://www.treehugger.com/

World Wildlife Foundation   http://www.worldwildlife.org/home-full.html

Charles David Keeling  http://www.nytimes.com/2010/12/22/science/earth/22carbon.html?_r=1&scp=1&sq=A%20Scientist,%20His%20Work%20and%20a%20Climate%20Reckoning&st=cse

Global Water  http://globalwater.org/whywater.htm

World Water Day  http://www.worldwaterday.org/page/107.

Arab Nations Running Out of Water  http://www.guardian.co.uk/environment/2011/feb/20/arab-nations-water-running-out?INTCMP=SRCH

Western States Water Shortage  http://www.economist.com/node/18013810/

Running Out of Water  http://science.howstuffworks.com/environmental/earth/geophysics/run-out-of-water.htm