The week in design: monster, printed and buried houses

Build a $300 underground greenhouse for year-round gardening (Video)

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Walipini

credit: Neo-farms

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All of this really raises the question of what green design really is; of all three previous homes shown, one could as "Why is this on TreeHugger?" Certainly the greenest thing we showed all week was Kim's underground pit greenhouse, a very different thing from Bercy Chen's pit house, even if they share the same roots.

More: Build a $300 underground greenhouse for year-round gardening (Video)