Stephen Hren, author of "Tales from the Sustainable Underground: A Wild Journey with People Who Care More About the Planet Than the Law," will be at Mac's. Hren is a restoration carpenter, builder and teacher who specializes in sustainable design and passive and active solar heating technologies.
"Tales From the Sustainable Underground" is packed with the stories of people who care more for the planet than the rules, whether they're engaged in natural building, permaculture, community development or ecologically based art.