Add Yahoo as a preferred source to see more of our stories on Google. Kieran Mitchell, CEO of Caribou Biofuels in Salida, Calif., talked about using walnut shells in activated-charcoal filters on Dec.

Scientists from the University of Nottingham and CSIRO Australia have developed a cutting-edge model to evaluate the energy efficiency of walnut and pistachio shells as low-carbon fuels and better ...

Who knew there were so many uses for walnut shells? In a recent Tempo article about the odd and amazing items exchanged on the Freecycle network, we reported that an Oak Park resident recently posted ...

Converting biomass to energy might not be a new concept, but one local business has been using the process to provide electricity to its operation for the past year. Premier Mushrooms, along with ...