New ETF Makes a Big Splash in Water

According to the World Resources Institute, global water consumption grew at twice the rate of the population during the 20th century.

Hydrogen Ventures estimates that $660 billion will be needed for water infrastructure in the next 20 years.

There's a variety of companies seeking to capitalize on this potentially lucrative water theme, from $376 billion market-cap behemoths like General Electric(GE Quote) to $290 million micro-caps like Layne Christensen(LAYN Quote). The challenge for investors is that GE's water business is a long way from having a meaningful impact on the entire company, and one little misstep from a micro-cap like Layne could result in a major blowup. ...