6a779f58_astics___Sustainable_Plastics___Petro_Plastic_Woes
[Benefits of Biopolymers] Can replace many harmful conventional plastics [Petro-Plastic Woes] 
Non-renewable (geological timeframes to produce but 1 to 10 years to consume)
About Bioplastics | Sustainable Plastics?
Petro-Plastic Woes