cool chart (link), puts in context just how little fresh water there is available to drink. Water will be the next scarce resource (and in many places it already is) Water as the next hot commodity?
1) PHO PowerShares Water Resource Portfolio Interesting to note, since PHO's inception in Dec '05, it has outperformed the broader Utilities Index (XLU) and crushed the S&P 500 (SPY):
Source: www.etfdesk.com2) PIO PowerShares Global Water Portfolio
3) CGW Claymore S&P Global Water Index ETF