Bioplastics
Are They Really a Solution?
by Sarah (Steve) Mosko
Bioplastics are simply plastics derived from renewable biomass sources, like plants and microorganisms, whereas conventional plastics are synthesized from non-renewable fossil fuels, either oil or natural gas. It’s a common misconception, however, that a bioplastic necessarily breaks down better in the environment than conventional plastics.
Bioplastics are nevertheless marketed as being better for the environment, so how do they really compare?
The Problems with Petroleum-Based Plastics
The push to develop bioplastics emerges from alarming realities starting with the staggering quantity of plastics being produced, over 20 pounds a month for every U.S. resident, according to the latest numbers from the American Chemistry Council. Conventional plastics do not biodegrade (defined below) within any meaningful human timescale — they just break apart into smaller plastic fragments. This means that, except for a tiny fraction of plastic that is combusted for energy production, all plastic eventually ends up as trash, either in landfills or as litter. (more…)