By the year 2050, an estimated 80% of earth's population with live in urban centers. Using the current demographic trends, the human population will increase by 3 billion people during the interim. A land area the size of Brazil will need to be available to feed the population if current farming practices continue.
The Solution:
Vertical farming has been discussed many times in the past century, but technology has finally caught up to the idea. Below is a picture of a proposed vertical farm.
The concept of vertical farming has been around since 1915 when the term was first coined, but Dr. Dickson Despommier from Columbia University has given it new life in the light of our present global conditions. In the clip below he talks about how the farms would work and how they can help.
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