Vertical farming

In this time and age the world population is now 6.4 billion.
Some of us still think that we are merely 6.1 billion.
The rate at which the human race is filling up this earth is staggering...
We need more space, and we need the means to feed the masses.
Vertical farms are the future.

In an area of a building block (5 acres), a 30-story vertical farm could produce the equivalent of 2,400 acres of produce by a traditional farm. This huge surplus created by vertical farming could feed more people per acre than traditional farming, which could help to feed everyone on this planet, and the generations to come.
Not only will a vertical farm produce more food, but it will also help to reduce the amount of carbon emissions that traditional farming puts out through the transportation of produce. This will help with our problem of global warming, which is one of our pressing concerns right now.
Food which is grown locally will also be cheaper, as there will be no need to pay extra to cover transportation costs.

There are arguments made by some who oppose this idea.
They claim that the energy consumption of vertical farms far outweighs the amount of energy saved.
There are also claims that vertical farms will not bring down the price of food, due to the expensive maintenance costs of the building..

And while there are many pros and cons of vertical farming, I believe that the pros outweigh the cons.
But I leave it to you to decide for yourself.

http://en.wikipedia.org/wiki/Vertical_farms