Comment: It would be better to think

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It would be better to think

about how to reclaim the desert. The middle east used to be the fertile crescent. It was productive. It became desert through agricultural practice, the same agriculture that is depleting our continent in the present day. The cedars of lebanon were the redwoods of the middle east. It used to be green.

Reclaiming the land, and restoring a moisture retaining soil, would be a better approach than creating artificial fertility in indoor environments, and it would be less energy intensive.

It can be done. Here's an example.

Greening the Desert
https://www.youtube.com/watch?v=sohI6vnWZmk