Vertical farms could help feed cities, save land and reduce pollution

I think skyscrapers are a misnomer, really, vertical farming will probably be more about 3-4 story tall warehouses in the outskirts than big spires in the center of the city.

The problem is that, being in the early planning stages, many of the ideas are being put forth by volunteer architects, who are more about grandiosity than practicality.

I'd recommend checking out Thanet Earth for an example of indoor agriculture that's proven itself, vertical farming just means building it up a bit.

http://www.thanetearth.com/