The Plastic Fish Tower would collect and recycle the plastic flotsam with the help of a circular floating fence that creates a 1.2-mile (1-kilometer) circle around the sphere. Arms extending from the bottom of the sphere keep the fence in place. A mixed-use community, the Tower could accommodate residents on its outer rings and above-water sections, while a processing plant in the sphere's core would turn the trash into plastic fish-farm nets.

Specially designed boats would ferry people to and from the Fish Tower and would be "fueled by chemicals that will be collected from the processed plastics within the skyscraper in an as-of-yet-undiscovered method of chemical extraction," say the tower's South Korean designers.

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