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energy efficiency

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Corn biofuel 'dangerously oversold' as green energy

The rapidly growing corn ethanol industry could damage the environment without significantly reducing dependence on fossil fuels, argues a new report

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Amazon dam project gets the go-ahead

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Technology

Exfoliation produces lighter, cheaper solar cells

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Rising prices could end wasteful gas flaring

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Rising prices could end wasteful gas flaring

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Biofuels could spell ecosystem disaster

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Biofuels could spell ecosystem disaster

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Biorefineries: Curing our addiction to oil

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Biorefineries: Curing our addiction to oil

Features

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Could Russia claim the North Pole?

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Micro-generator feeds on good vibrations

Technology

Micro-generator feeds on good vibrations

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Giant microwave turns plastic back to oil

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Giant microwave turns plastic back to oil

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Technology

Roll up for better hydrogen fuel storage

Storing the gas safely and in sufficient quantities for real-world applications could simply be a matter of storing it in carbon "nanoscrolls"

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Technology

Invention: Superconducting ships

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Earth

Power-generating buoys shelter in the deep

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Earth

Mini heat harvesters could be new energy source

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Earth

New nuclear facilities could be in your backyard

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