Pollution
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Smog refugees flee Chinese cities as 'airpocalypse' blights half a billionThousands forced to escape to pollution-free regions as haze descends on the country’s northern industrial heartland
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Beijing smog: pollution red alert declared in China capital and 21 other citiesAuthorities issue five-day warning and order schools to close, residents to stay indoors and heavy industry to slow or halt production
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Breathe less … or ban cars: cities have radically different responses to pollutionWhen thick smog recently hit, Londoners were advised to avoid exercise, while Parisians got free public transport. Which is the best solution?
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Getting better all the time? Not any more…Brief letters: VW pollution | Convalescence | Train guards | Unite election | Hellebores | Cocaine capital
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Leaked BP report reveals serious near-miss accidentsCostly failures show ‘urgent attention’ needed to improve how oil giant manages crucial engineering data at plants
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Wind power key to curbing greenhouse emissions, study findsEdinburgh University researchers say windfarm energy prevented 36m tonnes of harmful coal and gas emissions in six years
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Why logs are twice as dirty as dieselPollutionwatch We think of wood burning as natural, but experiments show that wood smoke contains shocking levels of harmful particles
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The filthy practice of exporting highly polluting fuel to Africa is symbolic of big business the world over: where profit is king, human life becomes trivialAfrica is being choked. But corporations leave their grime on us all
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Over 200 years of deadly London air: smogs, fogs, and pea soupers60 years after the Clean Air Act, Londoners still suffer from air pollution. What can we can learn from two centuries of campaigns against city smog?
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Dieselgate: EC begins legal action against UK and other EU nationsGermany and Spain among those accused of failing to set up penalty systems to deter violations of emissions law
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Paris bans cars for second day running as pollution chokes cityVehicles with odd-number plates were banned on Tuesday and, on Wednesday, it was the even numbers’ turn
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London mayor to double funding to tackle air pollutionCampaigners hail announcement that funding for air quality measures will rise to £875m over the next five years
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Five west African countries ban 'dirty diesel' from EuropeNigeria, Benin, Togo, Ghana and Ivory Coast to block imports from oil companies and traders of diesel with sulphur levels many times European limit
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Diesel farms make fresh bids to supply National Grid back-up powerPolluting generators could win multimillion-pound contracts, with some also eligible for generous tax breaks
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Cycling on Vauxhall Bridge: a return visit and some new statisticsOne year since its opening more cyclists seem to be using one of London’s “superhighway” routes, although not all its goals have yet been met
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Ogoni king: Shell oil is killing my peopleKing Emere was in a London court last week for the case that he hopes will allow him to sue Shell in the UK for polluting his tribal land
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'In Delhi, you go inside for fresh air': how I learned to breathe againIndia’s capital has endured epidemics, the threat of war and a currency crisis in recent weeks, proving that in this vast city, toxic air is just another problem
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Four of world's biggest cities to ban diesel cars from their centresParis, Madrid, Athens and Mexico City will ban the most polluting cars and vans by 2025 to tackle air pollution
Values-led business This $500 shirt changes color when exposed to air pollution – but who does it help?