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Is global plastic pollution nearing an irreversible tipping point? - Stockholm University

Plastics separated from food waste after grinding and pulping from a food waste recycling facility in Norway, as part of a process to convert food waste to biogas and fertilizer. The research project mapped how plastic gets from food waste to farmers fields (Photo: Caroline Hansen and Heidi Knutsen, NGI)
Plastics separated from food waste after grinding and pulping from a food waste recycling facility in Norway, as part of a process to convert food waste to biogas and fertilizer. The research project mapped how plastic gets from food waste to farmers fields (Photo: Caroline Hansen and Heidi Knutsen, NGI)

Current rates of plastic emissions globally may trigger effects that we will not be able to reverse, argues a new study by researchers from Sweden, Norway and Germany published on July 2nd in Science. According to the authors, plastic pollution is a global threat, and actions to drastically reduce emissions of plastic to the environment are “the rational policy response”.

Plastic is found everywhere on the planet: from deserts and mountaintops to deep oceans and Arctic snow. As of 2016, estimates of global emissions of plastic to the world’s lakes, rivers and oceans ranged from 9 to 23 million metric tons per year, with a similar amount emitted onto land yearly. These estimates are expected to almost double by 2025 if business-as-usual scenarios apply.
“Plastic is deeply engrained in our society, and it leaks out into the environment everywhere, even in countries with good waste-handling infrastructure,” says Matthew MacLeod, Professor at Stockholm University and lead author of the study. He says that emissions are trending upward even though awareness about plastic pollution among scientists and the public has increased significantly in recent years.

Posted on: 02 July 2021

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