The company's other product that's hit the map, Ethos Fuel Re-formulator, realizes substantial fuel and maintenance costs savings for comerical fleets as well as the average automoble. To learn more about the company please visit www.4planetearth.com and view the YouTube Clip below:

Ethos gives up to 25% more gas mileage on NBC news

Two thumbs up! Ethos comes out strong as the new thrill seeker performance product giving you better gas mileage and car performance. Expect Ethos to become the next household name.

As far as pure plays go, many of the Clean Tech companies are small public companies, private companies, and start-ups. If you want to stick to publicly traded companies and want to remain diversified, there are several funds available in the market place that track a number of indices such as the Wilderhill Clean Energy Index® and the Jefferies Global Clean Technology Composite Index®. Alternatively, for more active investors, there are actively managed funds, and of course, one could buy individual securities. If you don’t want to exclusively invest in pure plays, but also want to invest in larger companies that perhaps aren’t developing environmental products and services per se, but are really “clean” and making strides to reduce their carbon footprints, one should take a look at the KLD Global Climate 100 Index®. The companies in this index have been selected by the Global Energy Network Initiative (GENI) in conjunction with KLD Research & Analytics, Inc. and represent the 100 companies that are believed to make the largest contribution to the reduction of green house gas emissions. Since the index came out, it has produced an annualized return of 23.88% vs. 20.94% for its benchmark, the S&P/Citi BMI World Index, as of 10/31/2007.

In my view, the best way to approach Clean Tech investing is with caution. There are no silver bullets, and outsized profit potential comes with outsized risk. Look at the biotech industry, for comparison. This is another sector where the promise is so large, yet stocks have not always moved up in a gradual straight line, to say the least. However, the opportunities in Clean Tech, when assessed objectively and with a cool head, will cool the planet and have the potential to produce solid returns. The problem of climate change will be with us for a while. Whether we solve it, or it solves us, Clean Tech companies will be here attempting to address the issue: it is not a fad.