When you travel through Vermont, tree-lined farms and hills dominate the landscape. Throughout this patchwork lies hundreds of producers that, until now, have been cut off from the advancing world of manure digestion, simply because people have said their operations are just too small. With the backing of a renewable energy company, Avatar, and a desire to prove everyone wrong, Dr. Guy Roberts is about to change the face of anaerobic digestion and its implications for smaller operations.