How does a precast concrete septic-tank root cellar hold up to a harsh New York winter? See how this DIY root cellar performs when temperatures drop. I mentioned building a root cellar as part of my ...

One occasionally sees, cut into the side of a hill or lying flat next to a home's foundation, a door in that ground that leads to a drab, potato-colored wonderland of vegetable storage: a root cellar.

Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. I like their mission statement: "Weltevree wants to contribute to a sustainable, social and ...