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Life

Infrared chlorophyll could boost solar cells

A new form of chlorophyll is the first to absorb infrared light, meaning it can be put to work in solar cells

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Technology

Lung-style fuel cell needs less bling for more oomph

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Pee is for power: Your electrifying excretions

Earth

Pee is for power: Your electrifying excretions

Features

Green machine: Fighting the efficiency fallacies

Earth

Green machine: Fighting the efficiency fallacies

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Earth

The next best thing to oil

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Innovation: Reinventing urban wind power

Earth

Innovation: Reinventing urban wind power

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Earth

Which oil-mopping technology will win $1.4m X prize?

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Earth

E. coli engineered to make convenient 'drop-in' biofuel

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US food waste worth more than offshore drilling

Earth

US food waste worth more than offshore drilling

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Green machine: A salty solution for power generation

Earth

Green machine: A salty solution for power generation

Put seawater and fresh water together and electricity flows – now schemes to do it on an industrial scale are beginning to show promise

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Technology

Alternative nuclear fuel is surprisingly reactive

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Earth

Green machine: A new push for pond scum power

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Earth

Stabilisers will let deep-sea wind turbines stand tall

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Earth

Hot electrons could double solar cell efficiency

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