Polymers that are oil-based have been shown to leave behind microplastics that can hurt both people and the environment. Researchers have developed a plant-based polymer that is almost entirely biodegradable and would be significantly less harmful.
Even when it’s ground into microparticles, 97% of an algae-based plastic biodegrades in compost and water in under seven months, a new study has reported. The researchers hope their plastic will eventually replace existing petroleum-based ones, which have caused concern due to their effects on health and the environment.
https://newatlas.com/environment/algae-microplastic-biodegradable