That's gonna need to be an awfully big skyscraper.
You'd need about 680,000 km² of land to grow the food to feed NYC (more than the entirety of New York State).
If you assume that yields could be 100x better in-doors (a strong assumption) - you'd still need a building with about 10x the floor space of the entire city's land area.
You'd need about 680,000 km² of land to grow the food to feed NYC (more than the entirety of New York State).
If you assume that yields could be 100x better in-doors (a strong assumption) - you'd still need a building with about 10x the floor space of the entire city's land area.