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energy efficiency

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Technology

Born-again solar cells are more efficient

Solar cells can be made more efficient over their lifetime if they continually regenerate their light-harvesting mechanisms

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Green machine: Squeezing solar juice from jellyfish

Technology

Green machine: Squeezing solar juice from jellyfish

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Technology

Edible crystals could store hydrogen fuel

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Earth

Briefing: How bad is the new Gulf oil rig fire?

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Earth

Mobile chargers could keep electric cars juiced up

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Arctic oil and gas drilling ready to take off

Earth

Arctic oil and gas drilling ready to take off

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Green machine: Perfecting the plant way to power

Earth

Green machine: Perfecting the plant way to power

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Innovation: Sunrise boulevards could bring clean power

Earth

Innovation: Sunrise boulevards could bring clean power

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Technology

Can we grab electricity from muggy air?

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Medical nanotech could find unconventional oil

Technology

Medical nanotech could find unconventional oil

Nanotechnology is providing medics with a powerful toolbox for imaging and treating diseased tissue. Could it do the same for oil recovery efforts?

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Earth

Green machine: Wave power line jacks into the grid

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Life

Infrared chlorophyll could boost solar cells

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Earth

Pee is for power: Your electrifying excretions

Features

Technology

Lung-style fuel cell needs less bling for more oomph

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