Source: has reported that Owen Louis definitely knows his onions when it comes to environmental friendliness-he sticks his iPod in them. Louis, 21, bores two holes in an onion, soaks it in an energy drink then sticks a USB cable into it-and can charge his iPod for an hour.

"I was watching TV with my laptop on and my iPod playing and thought, 'How much electricity must I be using?,'" he said. "A friend showed me the experiment as a laugh but I thought it was the greatest thing I have ever seen, and do it religiously every day."

Louis, from Portsmouth, told that the idea was a foolproof way of staying green as the onion decomposes and the drink bottle can be recycled once finished with.

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