Half Buried Greenhouses

Extract from discussion in the Surplus Energy blog:

A friend of mine in Texas is building a large half-buried greenhouse. Putting the plants down in the ground several feet gives them the more stable climate they need. The trick was widely used in what is now southern Russia. But it was very labor intensive. The question now is whether we use our remaining energy to build sunken greenhouses or shoot it off into space dreaming about Martian colonies.

Don Stewart

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