GREEN

Gold Nanoparticles Could Transform Trees Into Street Lights

11/11/2010 12:49 pm ET | Updated May 25, 2011

A group of scientists in Taiwan recently discovered that placing gold nanoparticles within the leaves of trees, causes them to give off a luminous reddish glow. The idea of using trees to replace street lights is an ingenious one -- not only would it save on electricity costs and cut CO2 emissions, but it could also greatly reduce light pollution in major cities.

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