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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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Work improves conditions for fish
Southern Water upgrades its wastewater treatment as part of a £1bn scheme to improve the environment.
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Hatchery aims to protect lobsters
A hatchery in Cornwall is hoping to release thousands of baby lobsters off the South West coast, in an effort to boost stocks.
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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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Move to stop alien stowaways
Efforts will be made this week to draw up a convention to control the spread of wildlife in ships' ballast tanks.
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Scientists aim to filter out invaders
Australian scientists may have found a way to stop ships transferring "alien" organisms in their ballast water - an accidental practice that is damaging ecosystems worldwide.
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Fish fall victim to heatwave
A warning is issued after high demand for tap water leads to a rise in chlorine levels - and the death of some exotic fish.
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Preparing for deadly war
BBC reporter Huw Williams writes about a course preparing journalists for possible chemical and biological warfare.
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Navy taskforce to set sail
A British naval taskforce will set sail towards the Gulf next month - on the way to a "long-planned" exercise in the Indian Ocean
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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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