8 of 8
BACKNEXT
Hurricane-killing wave pump
Hurricane-killing wave pump
How it works: The contraption is basically a ring several hundred feet in diameter, with layers of old tires making up the outer wall.

In the middle, a funnel runs down several hundred feet into the ocean. The force of waves breaking over the outer tire ring forces warm water down the funnel. It mixes with the cooler water below before rising to the surface again, colder than before. This would create a constant exchange of warm and cold water.

Why it might succeed: Hurricanes rely on warm water for their strength, this process denies them that and may weaken the storms, said Ken Caldeira, a scientist at the Carnegie Institution who, along with Bill Gates, is one of the scientists who came up with the idea. It may also absorb more carbon dioxide from the atmosphere, since cold water dissolves more CO2 than warm water.

Why it might not succeed: Some question how much carbon it can absorb, and also whether it could be deployed on a scale that would weaken a big storm. Others say it will simply make hurricanes go elsewhere.

NEXT

Last updated December 02 2009: 10:52 AM ET
Email | Print | Share  |  RSS
 
google my aol my msn my yahoo! netvibes
Paste this link into your favorite RSS desktop reader
See all CNNMoney.com RSS FEEDS (close)
More Galleries
Some Converse copycats cost big bucks A few bargain brands got swept up in Chuck Taylor's net, but others cost a pretty penny. More
Urban infrastructure gets a second life Railroad beds become parks, power plants become aquariums and slaughterhouses are now art centers as an industrial past turns people-centric. More
Boomtown moms From working mothers raising their kids in RVs to stay-at-home moms who spend their days organizing events for the Oil Wives club, meet the moms of North Dakota's oil boom. More

Special Offer
Market indexes 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. 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.