A new type of petrol engine is claimed to be as efficient as diesel.
As the developed world's thirst to replace petrol and diesel with biofuel grows, the global food chain will be under even greater pressure.
The story of the world’s most successful electric car.
Aircraft makers are seeking to find lighter and greener materials for their planes.
South West Trains has confirmed that it is testing the use of biodiesel on one of its trains in passenger service.
Transport commentary
Highly charged blog 12 August 2008
It may not be the only car with a blog, but the Chevy Volt could well be the most active.
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