Happy Pi Day From TreeHugger and Planet Green

mushroom barley pie kelly

We are big fans of Pi Day and have been celebrating it for years, last year with this yummy mushroom and barley pie. Having the great event fall on a Sunday this year threw us off, so instead we round up our previous posts.
roundbuildings image

Two years ago we celebrated all things round, including Rolf Disch's solar powered house that tracks the sun, so that its triple-glazed front can face the warming sun in winter and show its well insulated back in summer. Then there is the wonderful water tower conversion by zecc arcitechten of Utrecht. A pie shaped kitchen would be an interesting place to work, and then there is Eli Attia's way too big Round House.
rotating houses round

Rotating houses tend to be round, and are worth looking at again on Pi Day. See Rotating Houses Put A Whole New Spin on Green Design
bike-round.jpg

Warren used Pi Day as an excuse to include pictures of round things in his post on Britain's Burgeoning Bicycling Boom
martha-pies
In case mushroom pi doesn't strike your fancy, here are recipes for Apple Pi and pumpkin pi.

Tags: Holidays

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