These futuristic projects promise to make the world greener, while making entrepreneurs some green.
3. Toxin-Eating Trees
3. Toxin-Eating Trees
Plant a forest, clean up a Superfund site. That's the idea behind phytoremediation, a technology that uses vegetation to absorb hazardous waste. The technique is old, but now there's a new twist that promises to make toxic dumping grounds green in more ways than one. British researchers have identified bacteria living in the roots of poplar trees that produce an enzyme that zaps residue from RDX, a chemical compound used by the military and industry. The scientists hope to genetically engineer the enzyme to boost the tree's ability to suck up toxic waste. So don't be surprised if you start seeing forests sprouting up on old military bases. (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
Go Green, Get Rich Meet the companies tackling nine of humanity's biggest problems -- and making millions saving us from ourselves. (more)
Blog: Can tech save the planet? Are green entrepreneurs the answer to our problems? Tell us what you think by posting a comment on the Green Wombat blog. (more)
101 Dumbest Moments in Business Business 2.0 Magazine's 7th annual look at the year in bungled layoffs, customer-service snafus, executive follies, and other madness. See all 101. (more)

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2014 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2014. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2014 and/or its affiliates.