Excerpt:
Bioplastics may avoid some of the issues associated with non-biodegradable fossil fuel–derived plastics, but they’re no panacea.
Plastics produced from plants are often considered less environmentally damaging than plastics made from petrochemicals. But scientists are warning that we should be careful making such assumptions.
A new literature review examining the results of around 20 scientific papers has found that bio-based plastics, most of which are made from cornstarch, can be just as toxic as their conventional cousins when dumped in coastal environments. The review also shows that plastics marked as biodegradable often fail to break down in these environments.
The paper highlights the lack of research into the environmental toxicity of bioplastics. The authors write that, for now at least, regulations on bioplastics need to be as tight as those for petroleum-based polymers…
