Many people have attempted DIY biogas projects and become discouraged after they failed to produce flammable gas. With my first blog entry, I would like to start at the beginning. This article does ...

http://www.permaculture-sf.org/monthly-guild-gathering-diy-cold-climate-biogas-unit/ Come to the permaculture guild gathering on August 2nd at 6:30pm to hear David ...

Each year, 1.3 billion tons of food ends up lost or wasted — 46 percent of the world’s garbage. While the global food waste situation is what you’d call a “doozy,” consumers and companies like ...

David Kuchta, Ph.D. has 10 years of experience in gardening and has read widely in environmental history and the energy transition. An environmental activist since the 1970s, he is also a historian, ...