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Earth

Existing gas power plants could pump out hydrogen

The lack of a cheap way to generate the gas in bulk is holding back the shift to a hydrogen-powered economy – could retrofitting natural gas power stations be the answer?

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Sea 'snake' generates electricity with every wave

Earth

Sea 'snake' generates electricity with every wave

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How to fuel a car on waste plastic

Earth

How to fuel a car on waste plastic

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Humanity's carbon budget set at one trillion tonnes

Earth

Humanity's carbon budget set at one trillion tonnes

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Geothermal explosion rocks green energy hopes

Earth

Geothermal explosion rocks green energy hopes

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Could your trashcan solve the energy crisis?

Earth

Could your trashcan solve the energy crisis?

Features

Earth

How to turn greenhouse gas into a clean fuel

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Stacked LEDs could shine bright white light

Technology

Stacked LEDs could shine bright white light

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Earth

Geoengineering could dim lights on solar power

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Yeast and bacterium turned into gasoline factory

Earth

Yeast and bacterium turned into gasoline factory

Some DNA detective work, combined with clever genetic engineering, could lead to the production of carbon-neutral petrol

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Earth

Gallery: Green innovation challenge

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Earth

Can oil from tar sands be cleaned up?

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Earth

Green and mean: The downside of clean energy

Features

Space

World's highest-energy laser begins operating

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