Mushrooms Become Source for Eco-Building

By JESSICA M. PASKO, Associated Press Writer, General Science / Other

Gavin McIntyre, left, holds a growing sample of organic insulation, while Eben Bayer shows off the finished product, at Rensselaer Polytechnic Institute in Troy, N.Y., Thursday, May 17, 2007. The two created their patented "Greensulate" formula, an organic, fire-retardant board made of water, flour, oyster mushroom spores and perlite, a mineral blend found in potting soil, and are hoping the invention will soon be part of the growing market for eco-friendly products. (AP Photo/Mike Groll)

(AP) -- Eben Bayer grew up on a farm in Vermont learning the intricacies of mushroom harvesting with his father. Now the Rensselaer Polytechnic Institute graduate is using that experience to create an organic insulation made from mushrooms.

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