Streetlights Could Be Replaced by Glow-in-the-Dark Trees 
Daily Mail (December 14, 2017)

Roads of the future could be lit by glowing trees instead of streetlamps, thanks to a breakthrough in creating bioluminescent plants.

Experts injected specialized nanoparticles into the leaves of a watercress plant, which caused it to give off a dim light for nearly four hours.

The chemical involved, which produced enough light to read a book by, is the same as is used by fireflies to create their characteristic shine. 

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