If you read my article from late last week, you know about my family farm in Kansas. And you’ll also remember that I work out of the StreetAuthority offices in Austin, Texas.

So what do those two places have to do with today’s investment idea? One word: Water.

Allow me to explain. Being from a farm (and living in Tornado Alley), I started keeping an eye on the weather at an early age. Rain — or lack thereof — can make a big difference on the bottom line.

Meanwhile, I now live in Austin. For those of you who didn’t realize, 2008-2009 proved to be some of the most drought-stricken years in central Texas since the 1950’s. Take a look at the drought map for the state from August 2009. It doesn’t take a map legend to realize that the dark reds mean a nasty drought.

Luckily, the rains in Texas have returned and just in time — the reservoirs that provide the region with drinking water were sitting at less than 50% full just a few months ago.

Now, it seems strange to have to worry about water — anywhere in the world — when you consider that the planet is covered in the stuff. But 97% of Earth’s water is laden with salt. Two percent is locked up in snow and ice. That leaves just 1% for humanity to use.

And in total, nearly 2 billion humans lack adequate supplies of fresh water.

But it’s not all bad news. There is a way out of the problem.

The answer is the desalinization of seawater. The long-term growth in the field is real and should only accelerate as global population increases. I hope the investor in you is already smelling an opportunity.

In fact, I’ve found a $4-per-share company that has a patent on something every desalinization plant needs. Simply click play on the audio chat below to find out the details behind this company, including its name and ticker symbol. (Don’t forget to make sure your speakers are on, so you can hear.)

I have high hopes for this stock… so much so that I’ve tabbed it as one of my four “game-changers” for my recent free webcast on potential high-growth companies. If you missed the original webcast last week, don’t worry. There’s still time to view this presentation. Simply follow this link to view the webcast in its entirety for free.