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A company in New Zealand has claimed it has produced the world's first sample of commercially competitive 'green' crude oil.
Aquaflow, based in Marlborough, has developed a biofuel based on wild algae grown from human sewage, which the company claims is a world first.
Unlike most first generation biofuels, ethanol derived from human sewage requires no food crops or agricultural land, therefore placing no downward pressure on food production.
Company director Barrie Leay, told the Marlborough Express: "This is an exciting development because we can separate fuels such as diesel and aviation fuels, as well as a range of high-value chemicals from green-crude."
Mr Leay added that the process also delivered clean water for industrial re-usage or irrigation, a development that was garnering much interest from US distributors.
The US biofuel firm GreenHunter recently announced that it had achieved 65 per cent of production capacity for its Texas plant, before releasing another statement saying that the plant would be out of action for the next two months.
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