Radboud: sustain­able plastic is not a silver bullet

Sustainable plastic turns out not to be the solution it appears to be. Despite the annual production of hundreds of millions of tons of plastic and the search for alternatives, turns out that so-called sustainable plastics are often not as environmentally friendly as thought. This is evident from a study published recently by researchers Sara Gonella and Vincent de Gooyert from Radboud University.

The rise of plastic poses a major environmental challenge. Although various initiatives have been undertaken to address this problem, such as recycling and biodegradable plastic, their effects are limited. The researchers emphasize that the label 'sustainable' often gives a distorted view. According to Gonella, a product may only have a positive effect in a limited context, but there can be many negative and unintended consequences at the same time.

Risks of biomass

The switch from oil-based to biobased plastic is a much-discussed alternative. However, de Gooyert explains that this alternative is also energy-intensive and remains dependent on fossil fuels. The increased demand for biomass can lead to excessive use of agricultural land in developing countries, which negatively affects food production and quality. Additionally, for essential applications such as medical equipment and solar panels, the most sustainable options are often still plastic.

Misleading information and confusion

The researchers warn that misleading information about sustainable plastic can lead to careless use. Gonella stresses that the impression that biodegradable and biobased plastic is environmentally friendly can prevent the use of other, potentially better, materials. Furthermore, not every consumer is aware of the difference between biodegradable and biobased plastic, which can lead to confusion and mistakes in waste separation.

Importance for the United Nations

The findings of Gonella and de Gooyert are relevant to the United Nations, which is currently working on a treaty against plastic pollution. Gonella warns that without a clear definition of what sustainable plastic is, the UN may make the same mistakes as other organizations. A comprehensive definition that includes all aspects of sustainability is crucial to make real progress in the fight against plastic pollution.

Ru.nl