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Biodegradable plastics may end up doing more harm than good

The green credentials of bioplastics are making consumers complacent; the way these products break down is a risk to the environment.

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Biodegradability is just one of a series of good and bad factors relating to different varieties of plastics, rather than a simple and absolute positive.

Biodegradability is just one of a series of good and bad factors relating to different varieties of plastics, rather than a simple and absolute positive.

PHOTO ILLUSTRATION: UNSPLASH

David Fickling

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For those guilt-ridden about the environmental damage caused by everyday consumer purchases, there are myriad paths towards forgiveness. Stick your bottles, cans and Amazon cartons into the recycling box. Buy the organic cold brew that is made with 100 per cent renewable power. Minimise the carbon from your ski holiday flight with Peruvian rainforest offsets.

Then there is biodegradable plastics. It is hard to cut polymers from your life when boxed blueberries are so temptingly cheap and so healthy – but perhaps we can at least mitigate the effects if we buy them in a box that will turn into compost?

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