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Plastic debris in the Arctic comes from all around the world

Plastic debris in the Arctic comes from all around the world – including Germany
Plastic debris from the Arctic. Credit: Alfred-Wegener-Institut / Melanie Bergmann

"Citizen Science" gives interested citizens the chance to actively engage in scientific research. A citizen-science project conducted by AWI in the Arctic now shows just how successful this can be. In the course of five years, citizens who went on sailing cruises to the Arctic surveyed and collected plastic debris that had washed up on the shores of Svalbard.

This has now been analyzed by the Alfred Wegener Institute. According to the findings, one third of the which still bore imprints or labels allowing an analysis of their origin came from Europe, and much of that number from Germany. The findings, just released in the journal Frontiers in Marine Science, clearly show that even prosperous industrialized countries like Germany make significant contributions to the pollution of remote ecosystems like the Arctic.

Plastic debris is a global problem that even the uninhabited wilderness of the High North is not immune to: considerable amounts of plastic debris have been observed floating in the remote Arctic Ocean. However, it is still unclear where it all comes from. A project conducted by the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) now offers a first, valuable insights.

"In 2016 we began working with citizens to investigate the composition of plastic debris on Arctic shores," says AWI researcher Dr. Melanie Bergmann, who came up with the idea for the project together with the tour guide and writer Birgit Lutz. In close collaboration with companies offering trips to the Arctic, participating tourists gathered and recorded plastic debris washed up on the shores of Svalbard. From 2016 to 2021, this amounted to 23,000 items with a combined weight of 1,620 kilograms.

"We've now gone a step further and investigated where the debris that had still marks, labels or imprints came from," Bergmann explains. "Our analysis found that, at 80 percent, the clear majority was plastic debris," adds first author Anna Natalie Meyer from the AWI. Although most of the items could be classified as stemming from fisheries, its point of origin couldn't be identified. In roughly one percent of the debris, labels or imprints could still be recognized—primarily from Arctic countries, particularly Russia and Norway.

"From previous studies and computer models, we know that plastic pollution comes from local and remote sources alike," says Meyer. "Locally, plastic debris finds its way to the ocean from ships and from Arctic communities with poor waste management systems. As for remote sources, plastic debris and microplastic are transported to the Arctic Ocean from the Atlantic, North Sea and North Pacific by various rivers and ocean currents."

For example, the experts even found debris originating from sources as distant as Brazil, China and the U.S. on the coast of Svalbard. But plastic debris from Europe, especially from Germany also ended up in the High North, accounting for eight percent of the total. "Considering that Germany is the 'European champ' in terms of both plastic production and debris exports, this comparatively high percentage isn't so surprising," says Melanie Bergmann.

According to the study, a comparison of the new data with those from previous fieldwork conducted at the sea surface and the deep ocean floor shows that much more debris accumulates on Arctic shorelines, making them a final sink of sorts. This plastic debris poses additional challenges for Arctic ecosystems, which are already overly burdened by climate change. After all, the Arctic is warming at four times the global average rate.

"Our results highlight that even prosperous industrialized countries, which can afford better waste management, make significant contributions to the pollution of remote ecosystems like the Arctic," says AWI expert Melanie Bergmann.

"Accordingly, in order to tackle the problem effectively, not only does local —especially on ships and in fisheries—need to be improved. It's equally important that global plastic production be massively reduced, especially in the industrialized countries of Europe, North America and Asia, since roughly 11 percent of the global plastic production finds its way into our water ways. This underscores once again the urgent need for an ambitious and legally binding UN Plastics Treaty, which is currently being negotiated and due to enter into force in 2024."

More information: Where does Arctic beach debris come from? Analyzing debris composition and provenance on Svalbard aided by citizen scientists., Frontiers in Marine Science (2023). DOI: 10.3389/fmars.2023.1092939

Journal information: Frontiers in Marine Science

Citation: Plastic debris in the Arctic comes from all around the world (2023, February 7) retrieved 21 February 2024 from
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