Around 45m people wear contacts in the US, while rates in other countries vary, with between 5 and 15% of the population in Europe using them. View Matt McGrath’s profile on LinkedIn, the world's largest professional community. VideoThe story of the blaze that destroyed Moria camp, Arctic Circle teens call for help to save their homes.

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14 January. Or watch this space for details of our next event. End that deadline stress today and find help in our freelance directory, Here is how to craft emails that will keep audiences informed but not overwhelmed, University is going to be a bit different this year. The lenses are consequently spread on farmland as sewage sludge, increasing plastic pollution in the environment. "We found that there were noticeable changes in the bonds of the contact lenses after long-term treatment with the plant's microbes," said Varun Kelkar, one of the authors from Arizona State University. said Prof Halden. Related Topics . They found 15-20% of US users simply flick these fiddly lenses down the drain via the bathroom sink or toilet. This byline is for a different person with the same name. Trump and Biden feud over topics for TV debate, French pupils held after teacher beheaded, Why jellyfish could be a 'perfect food' VideoWhy jellyfish could be a 'perfect food', How fashion reflects ethnic pride in Ethiopia, Indigenous groups rally in Bogotá over killings, Far-right online: 'I got them back on social media' VideoFar-right online: 'I got them back on social media', Undercover in the schools that chain boys. Contact lenses are often made from a mixture of acrylic glass, silicones and fluoropolymers that allows manufacturers to create a softer plastic material which permits oxygen to pass through to the eye. son tan importantes para el futuro del planeta. Follow @MattMcGrathBBC The latest updates in text and video as the US election enters its frantic final fortnight. Bio: Environment correspondent for BBC News - covering all the green issues, interested in scicomm but also rugby, GAA, Munster & Ireland. Plastic food pots and trays are often not recycled, figures show, Why jellyfish could be a 'perfect food' Video, Far-right online: 'I got them back on social media' Video, Far-right online: 'I got them back on social media', Undercover in the schools that chain boys. Video, The story of the blaze that destroyed Moria camp, Arctic Circle teens call for help to save their homes. "If earthworms consume the soil and birds feed on it, then you could see that plastic make the same journey as is done by plastics debris in oceans, they are incorporated by biota that are also part of the human food chain," said Prof Halden. Read about our approach to external linking. Plastic pollution: 'Stop flushing contact lenses down the loo' By Matt McGrath Environment correspondent.