There is a neat article about how the global production of bioplastics is supposed to grow 50% in the five years. Polylactic  Acid or PLA may be the best known bioplastic and it has been undergoing changes by it's manufacturers to make it easier for molders to use.   This is an ever growing field as companies and people become more aware of their impact on the environment and/or become more aware of how others perceive their actions as they relate to the world.