A study released in July 2010 by the National Resources Defense Council, an environmental action group, identified states in the U.S. that will likely have sufficient water to meet their future needs…and those states that likely will not. The study, which projects water needs through 2050 based on population growth, 16 climate models, precipitation trends, global warming, and other factors, indicates that all areas of the U.S. will experience some type of water shortage in the next 40 years with some areas more severely impacted than others.
The states that will be least impacted and experience the fewest water problems are all located in the Northeastern and Northwestern parts of the U.S.  This includes such states as Maine, Massachusetts, Washington and Oregon. Areas that will likely experience moderate to occasional water shortages are located in the Midwest and South.
However, 14 chronically high-risk states, many of which are already experiencing severe water shortages, were also identified:
1.  Arizona
2.  Arkansas
3.  California
4.  Colorado
5.  Florida
6.  Idaho
7.  Kansas
8.  Mississippi
9.  Montana
10. Nebraska
11. Nevada
12. New Mexico
13. Oklahoma
14. Texas
The report blames future water shortage on climate change and calls for “meaningful legislation” by Congress to reduce global warming. However, Klaus Reichardt, founder and CEO of Waterless Co LLC., does not believe that is necessarily the answer. He believes greater emphasis on water conservation technologies will help solve this country’s current and future water shortages.
“I also believe private industry, not necessarily government, will solve many of our water shortage problems,” he adds. “In fact, it is happening already. For instance, several reduced-water/no water restroom fixtures now available far surpass government requirements for water conservation.”