Turn the Eiffel Tower Green?

December 30, 2011 by  
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A concept to turn the Eiffel Tower into a giant green wall has been proposed as a symbolic statement of “the reconciliation of nature and mankind.”The plan calls for 600,000 plants to be attached to the structure using hemp sacks filled with soil as the growth media. An irrigation system comprising 12 tons of tubing would be used to provide water for the plants. The installation would not be permanent, and would be removed after a few years. But, once in place, the installation would help remove an estimated 87.8 tons of CO2 from the atmosphere. “Should it not be the duty of engineers to imagine a new future where nature is brought back into the heart of the city,” said a statement from Ginger, the company behind the proposal. With an estimated cost of nearly 100 million dollars for the project, that’s more than a million dollars per ton of CO2. Hardly the most cost effective carbon sequestration, but certainly a visible one. image: CC-BY 3.0 by Taxiarchos228 via: Sustainablog

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Turn the Eiffel Tower Green?

Using Light to Make Solar Panels

December 30, 2011 by  
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A new optical furnace that uses intense light rather than a conventional furnace to heat the silicon to make solar cells saves about half the energy needed . The process uses a furnace with “highly reflective and heat-resistant ceramics to ensure that the light is absorbed only by a silicon wafer, not by the walls inside the furnace.” The process was developed by scientists at the National Renewable Energy Laboratory (NREL). In addition to providing improved efficiency in the production of the cells, the optical furnace also does a better job at removing some impurities, which makes for better output from the finished panels. Eventually, researchers on the project believe that this could provide a four percentage point increase in the efficiency of the solar cells produced with this method. image credit: NREL/Dennis Schroeder via: Treehugger

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Using Light to Make Solar Panels

To Drive Positive Change, Tree Huggers Have To Hybridize With Tea Partiers & Break Political Taboos

September 15, 2011 by  
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Taboo Hybrid Tea Rose Image credit: Flickr, Nieve44/La Luz Tea Party leaders began political life with claims they better than any other party could best augur the meaning of political vanity publications on Al Gore’s Internets. A broader f=grass roots movement that recognizes the value of science and also is willing break today’s political taboos by angrily speaking up could help create a new future for America. I’m not talking about a simple fusion of Greens and Tea Party types because that wouldn’t attract more than be a small slice of all American vote… Read the full story on TreeHugger

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To Drive Positive Change, Tree Huggers Have To Hybridize With Tea Partiers & Break Political Taboos

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