A Dutch innovator says cities all over the world should trade in their expensive street lights for glowing trees. His name is Daan Roosegaarde and his environmentally friendly lighting system was inspired by the luminescent qualities of jellyfish and fireflies. Now he's teamed up with a scientist from the synthetic biology start-up Bioglow and the State University of New York in an effort to splice DNA from luminescent marine bacteria with the chloroplast of a house plant. It's unclear at this point in the designing stages whether the glow-in-the-dark trees would be bright enough to do the same job as street lights. Pretty wild idea eh?