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 ...

The field at The Wheeler School in Providence, Rhode Island, may look like a typical setup, but an attention to detail would bring out what's truly unique about their turf. The school is the first and ...

The push for renewable energy has led scientists to explore sources once thought of as useless. From food waste to plant fibers, researchers are looking at nature’s discarded materials in search of ...