Pollution
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Only 14% of plastics are recycled – can tech innovation tackle the rest?A new group of companies is innovating on the problem of plastics recycling by tackling everything from styrofoam to Ziploc bags
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Aerosol study to look at great unknown in climate scienceAustralian scientists seek to understand how non-carbon aerosolised particles affect global temperatures
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Our technology can clean up air pollution hotspotsLetter: As UK cities grapple with how to reduce air pollution, they should explore technology like that developed by us at Airlabs
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London’s pollution is so bad that it forced me to give up my dream PhDArriving to study, I had my first asthma attack in 10 years. The capital’s shocking air quality is a health emergency – and it’s already costing lives
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How air pollution harms your health - and how to avoid itIt can cause eye irritation, breathing difficulties and heart disease. Here are ways to limit the damage
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Monet's obsession with London fogWeatherwatch “Without fog London would not be beautiful” said the great French impressionist Claude Monet
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How to win the war on air pollutionLetters: Governments must ensure access to clean household energy and enforce limits on emissions from power stations, industry, open burning and other sources
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Hope for Hanoi? New bus system could cut pollution … if enough people use itA new $53m BRT (bus rapid transit) system has the power to reduce Hanoi’s dreadful air pollution. Persuading residents of Vietnam’s rapidly expanding capital to ditch their motorbikes and private cars, however, will be another story
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London to introduce £10 vehicle pollution charge, says Sadiq KhanMayor says owners of more polluting cars will have to pay extra levy from October to drive within congestion charge zone
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'Forest cities': the radical plan to save China from air pollutionStefano Boeri, the architect famous for his plant-covered skyscrapers, has designs to create entire new green settlements in a nation plagued by dirty air
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Tiny plastic pellets found on 73% of UK beachesGreat Winter Nurdle Hunt finds thousands of pellets used in plastic production washed up on shorelines around country
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European commission issues 'final warning' to UK over air pollution breachesUK is one of five countries persistently contravening legal nitrogen dioxide levels with pollution from factories and vehicles
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10 ways to beat air pollution: how effective are they?From particle-zapping bus stops to compact ‘smart’ air filters, we examine the methods that tackle the symptoms of air pollution
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'Filthy glamour': could polluted Marylebone Road help fix London's air?Marylebone Road has the odd distinction of being the world’s most studied road in terms of air pollution – yet remains a chief culprit in London’s ‘shameful’ air quality. Now it’s home to a series of new experiments
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Delhi's deadly dust: how construction sites are choking the cityThe Indian capital’s inherently dusty air is made worse by countless unregulated construction sites – and the production of bricks and concrete to feed them
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Breathless in Bakersfield: is the worst air pollution in the US about to get worse?In California’s Central Valley emissions from oil refineries and agriculture make Bakersfield America’s most air-polluted city. Activists fear the Trump administration could undo small but steady improvements
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Zenica, Bosnia: the steel town where even taking a breath can be a struggleAsh clouds dominate the sky in Zenica, with many blaming the air pollution on ArcellorMittal, the world’s largest steel maker and a major employer here
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Air pollution masks – fashion's next statement?Face masks are already a common sight in Asia. Now, as air pollution worsens, designers are targeting city dwellers in Europe and the US with pricier products
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65% of British public support new Clean Air Act, says surveyExclusive: Research also found 58% believe current levels of air pollution in UK are harmful or very harmful to health
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'Extraordinary' levels of pollutants found in 10km deep Mariana trenchPresence of manmade chemicals in most remote place on planet shows nowhere is safe from human impact, say scientists
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One day in the life of a suffocating planet – as it happenedAs Guardian Cities kicks off a week investigating air pollution, our correspondents report from the front lines of this global urban crisis
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'We had to sue': the five lawyers taking on China's authorities over smogIn an unprecedented legal case, a group of Chinese lawyers have charged the governments of Beijing, Tianjin and Hebei with failing to protect their citizens from air pollution, which is linked to a third of all deaths in the country
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Pant by numbers: the cities with the most dangerous air – listedWe’ve broken down the data on dangerous PM2.5 particles, and listed them region by region – to reveal the cities with the worst air in Europe, the US, Africa, Asia and more
Deep sea life faces dark future due to warming and food shortage