One major goal of this project is to provide an additional source of energy and food.

Whereas food and crop production could be replaced in a pinch by any kind of carbon dioxide fixation, energy production is a major cornerstone in the 'Green Deserts' concept.

This is not only because running the greenhouses will require a certain portion of energy itself. It rather is because any type of energy which has not to be produced by using and thus losing fossil fuel reserves is one step into the right direction in energy consumption:

Using the free ones while sparing the rare ones.