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Greek odyssey fuelled by chip fat
Green fuel campaigners are driving from London to Athens on cooking fat to further their cause.
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The filthy air conundrum
Beijing is following in the footsteps of other cities and taking drastic measures to improve its air quality in the run-up to the Olympics. But is it possible to conquer air pollution in a such a short space of time?
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Credit crunch hits NI motor market
Falling sales and redundancies are now the reality for Northern Ireland's motor industry.
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Time to leave the comfort zone
Civic leaders must be willing to make tough choices if we are going to live in green cities.
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Green movement forgets its politics
Why climate campaigners should stop trying to persuade people into lifestyle changes and start dealing with the politics.
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'Cruise control' for spacecraft
A British-built engine powered by ions makes its first space trip this summer on Europe's gravity explorer probe.
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Fumes 'leaking into plane cabins'
An aviation pressure group claims thousands of air passengers are at risk from toxic fumes leaking into aircraft cabins.
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Antarctic diary: Polar year
The BBC's Martin Redfern is spending a month in the Antarctic reporting on International Polar Year.
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'Greenwash' is losing its shine
Time is running out for advertisers who are a lighter shade of green, as eco-cliches fall out of fashion.
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Manchester - a city 'United in grief'
BBC News looks at how the people of Manchester reacted in the wake of the Munich air disaster of 1958.
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Society depends on more for less
If the world is to end the threat from climate change, we need to be able to produce more with less energy.
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Motorists enter the emission zone
A look at the new London Low Emission Zone which aims to improve the capital's air quality.
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Broken-down filter threatens lido
Cirencester open air pool battles for survival after a failed filtration system adds to a disastrous summer.
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Firms look to drive green sports agenda
Sport and its sponsors are starting to realise the industry must find ways to become more carbon-friendly.
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Sun and global warming: A cosmic connection?
Some scientists have given the Sun the starring role in global warming. Why so?
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Humanity is the greatest challenge
It is time to take radical action to curb rising population and consumption levels, or face "unspeakable consequences".
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Windscale fallout underestimated
The amount of radioactive fallout from a nuclear accident in 1957 was underestimated, scientists say.
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Windscale: A nuclear disaster
Fifty years ago, on the night of 10 October 1957, Britain was on the brink of an unprecedented nuclear tragedy.
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Cabbies lose bid against filters
Taxi drivers have failed in a High Court bid to reverse a decision forcing them to fit "faulty" exhaust filters.
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Experts find pollution heart risk
A new study finds that air pollution could put heart attack patients at greater risk.
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