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energy efficiency

Chicken feathers could make cheap hydrogen store

Earth

Chicken feathers could make cheap hydrogen store

Need a cheap way to store hydrogen? Forget expensive nanotubes and put cold feathers in your tank instead, say researchers

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Virtual power plants could tame coming grid chaos

Earth

Virtual power plants could tame coming grid chaos

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Train can be worse for climate than plane

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Train can be worse for climate than plane

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Poor countries could be paid to go nuclear

Earth

Poor countries could be paid to go nuclear

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Methanol challenges hydrogen to be fuel of the future

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Methanol challenges hydrogen to be fuel of the future

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Hot rock power scheme could brew trouble in Eden

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Rules of high seas could lead to Arctic 'pole of peace'

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Rules of high seas could lead to Arctic 'pole of peace'

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Alcohol makes autos more climate-friendly

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Alcohol makes autos more climate-friendly

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Power-hungry gadgets must learn to diet

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Growing biofuel without razing the rainforest

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Growing biofuel without razing the rainforest

You can't cultivate biofuel crops without cutting down trees, right? Not so, says Marcos Buckeridge, who tells Jan Rocha how Brazil can supply the world with green ethanol

Opinion

Earth

Breathing batteries could store 10 times the energy

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Earth

Existing gas power plants could pump out hydrogen

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Earth

Sea 'snake' generates electricity with every wave

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Earth

How to fuel a car on waste plastic

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