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.

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 ...

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 ...

DIXON (CBS13) - A trailblazing local farmer is producing power using leftovers from his harvest. He was recently honored as an environmental hero by the government. Russ Lester's on the cutting edge ...