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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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'Biological' kidney implant hope
The first human trial of an artificial 'bio' kidney offers hope of a working implant for patients, say experts.
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Dean ditches diesel for veg oil
Dean Butler tanks up his fleet of people carriers with vegetable oil and saves £4,000 a year.
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US launches bio-terror sensors
Early warning systems to detect smallpox, anthrax and other deadly bacteria are being introduced across the United States.
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Engineer serves up fish'n'chip fuel
A west Wales engineer comes up with an idea to recycle old fish and chip oil to run his car, saving money and cutting exhaust emissions.
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