content. A bioplastic such as high-density polyethylene (HDPE) can be 100% biobased (i.e. contain 100% renewable carbon), yet be non-biodegradable. These bioplastics such as HDPE nonetheless play an important role in greenhouse gas abatement, particularly when they are combusted for energy production. The biobased component of these bioplastics is considered carbon-neutral since their origin is from biomass. Anaerobic biodegradability – ASTM D5511-02 and ASTM D5526 The ASTM D5511-12 and ASTM D5526-12 are testing methods that comply with international standards such as the ISO DIS 15985 for the biodegradability of plastic. See also Alkane Biofuel Biopolymer BioSphere Plastic Organisms breaking down plastic Celluloid Edible tableware Food vs. fuel Galalith Health concerns of certain non-biodegradable (fossil fuel-based) plastic food packaging Organic photovoltaics Sustainable packaging References Further reading Plastics Without Petroleum History and Politics of 'Green' Plastics in the United States Plastics and the environment "The Social construction of Bakelite: Toward a theory of invention" in The Social Construction of Technological Systems, pp. 155–182 External links Assessment of China's Market for Biodegradable Plastics, May 2017, GCiS China Strategic Research Biodegradable waste management Polymer chemistry