Talk about proverbially killing two birds with one stone! One of the problems that plagues many cities is a lack of nature. There are often only a few parks that are islands of green amidst a sea of concrete towers. A Dutch designer named Daan Roosegaarde is taking inspiration from nature to try and change that.
Some plants and animals are naturally bioluminescent, which means they can produce their own light. The concept is new and starting out small, but Roosegaarde hopes that one day in the future glowing trees could replace street lights in cities across the world.
However, bioluminescent plants produce far less light than street lamps. The plants can only produce 12 lumens per meter, whereas a street lamp can produce 10,000 lumens per meter. To have natural plants bright enough to light the street is probably impossible, but who knows what technologies and advancements will happen in the future?