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Earth

Solar alchemy turns fumes back into fuels

By Rob Edwards

13 September 2006

IT IS the biggest contributor to climate change. Now chemists are hoping to convert carbon dioxide into a useful fuel, with a little help from the sun.

If they succeed, it will be possible to recycle the greenhouse gas produced by burning fossil fuels. The work could also lead to a way for future Mars missions to generate fuel for their return journey from carbon dioxide in the planet’s atmosphere.

Chemists have long hoped to find a method of bringing the combustion of fuel full circle by turning CO2 back into useful hydrocarbons. Now researchers at the University…

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