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The rapid introduction of compostable and biodegradable plastic alternatives could be making marine pollution worse, a committee of Parliamentarians has warned.

MPs who sit on the select committee on environment, food and rural affairs heard evidence from leading environment experts as they prepared a report for Government on how to tackle the growing problem of single-use plastics.

The MPs were told that plastic alternatives are being rapidly introduced by food and drink companies, cafés and coffee shops in response to public pressure ‘without the right infrastructure or consumer understanding about how to dispose of them’.

Most of the compostable packaging produced for the UK market only breaks down in industrial composting facilities, rather than in home composting – but only a small percentage ever reaches these facilities.

Environmental NGOs told the committee that the quick uptake of such alternatives could actually increase plastic pollution, particularly in the marine environment.

Juliet Phillips, ocean campaigner at the Environmental Investigation Agency told MPs: “If a biodegradable cup gets into the sea, it could pose just as much of a problem to marine life as a conventional plastic cup.”

If a biodegradable cup gets into the sea, it could pose just as much of a problem to marine life as a conventional plastic cup

A recent study by the University of Plymouth found that biodegradable bags can survive intact in seawater for three years and ‘fail to demonstrate any clear or reliable advantage over conventional plastic in the context of marine litter’ and also create problems for recycling.

Neil Parish MP, Chair of the Environment, Food and Rural Affairs Committee, said: “My Committee is also concerned that compostable plastics have been introduced without the right infrastructure or consumer understanding about how to dispose of them. Fundamentally, substitution is not the answer, and we need to look at ways to cut down on single use packaging.”

But David Newman from the Bio-Based and Biodegradable Industries Association said that the MPs, and others who criticize compostable packaging, did not understand its role. He said: “It is a niche role, but significant in helping solve issues around food and soil. These are critical issues for production of food, 95% of which is produced on soil.

“Sadly, people look at materials, not at their use. But those who state that we should continue to use plastics even where they are contaminating food waste collections and organic matter going to soil either miss the point or are defending their interests.”

Photo by Cristian Palmer on Unsplash

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About the Author

Jim Manson

Editor-in-chief
Jim Manson is Editor-In-Chief of Diversified Communication UK's natural and organic publishing portfolio. He’s written widely on environment and development issues for specialist magazines and national media, including the Financial Times, The Guardian, The Times, Time Out and World Bank Urban Age.

Articles by Jim Manson
Jim Manson
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