An Underground Greenhouse or Walipini
An Underground Greenhouse in La Paz, Bolivia I was chatting with my family online this evening and my sister mentioned an underground greenhouse. Intrigued, I followed the link she posted to an article at treehugger. The Benson Institute developed the plans for the walipini or "place of warmth" as a way for families in La Paz, Bolivia, to garden throughout the year, despite the intensely cold mountain winters. The plans for the 20’ x 74’ greenhouse requires roughly $250-$300 in materials…