These futuristic projects promise to make the world greener, while making entrepreneurs some green.
6. Sonic Water Purifier
6. Sonic Water Purifier
Here's a sci-fi solution for an age-old problem that leaves 1.1 billion people without access to clean water: Beam ultrasound waves into polluted water, blowing up the cellular walls and carbon bonds of contaminants. What's left is a cool drink of fresh H2O. Ultrasound waves have already been used to break up sewage in sanitation systems. Now that the probes that produce the sound waves are getting more powerful, however, scientists are retooling the devices to decontaminate large tanks of water, a process called sonolysis. Portable sonolysis machines could be deployed to isolated villages in developing countries. In urban areas, sonolysis could treat water tainted with industrial pollution. (See the full story.)

Hydrogen Fuel Station

Environmental Sensors

Toxin-Eating Trees

Nuclear Waste Neutralizer

Ocean Robots

Sonic Water Purifier

Endangered-
Species Tracker

Renewable Smart Power Grid
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Market indexes are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer LIBOR Warning: Neither BBA Enterprises Limited, nor the BBA LIBOR Contributor Banks, nor Reuters, can be held liable for any irregularity or inaccuracy of BBA LIBOR. Disclaimer. Morningstar: © 2014 Morningstar, Inc. All Rights Reserved. Disclaimer The Dow Jones IndexesSM are proprietary to and distributed by Dow Jones & Company, Inc. and have been licensed for use. All content of the Dow Jones IndexesSM © 2014 is proprietary to Dow Jones & Company, Inc. Chicago Mercantile Association. The market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. FactSet Research Systems Inc. 2014. All rights reserved. Most stock quote data provided by BATS.