NewScientist The Last Word - Tag 'eco-friendly' details

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As some alternative energy supplies produce electricity all night, when less is needed, could this be stored Magnetically?
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Categories: Environment.

Chalk or cheese? Cows are responsible for a large amount of global methane emissions. Would calcium carbonate be a more eco-friendly source of calcium, let alone edible?
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Last edited on: 2010-01-02 11:43:17

Categories: Human Body.

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