The concept of vertical farms is well-known and has been played out in a number of different ways. Now, Aprilli Design Studio has stepped forward with a new idea for a vertical farm. The concept is ...

The idea is actually very simple: construct a tower fitted with 200-400 trees in areas of high pollution. Basically, it works like a gigantic filter—scrubbing smog and converting CO2 into oxygen.

The futuristic New York City skyscraper aims to be "a regenerative ecological engine for Manhattan," the proposal said.