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green technology

Green machine: A new push for pond scum power

Earth

Green machine: A new push for pond scum power

Interest in biofuel from algae has reignited, with billions of dollars being poured into research. Can today's efforts succeed where others failed?

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Green machine: The dream of green cars meets reality

Earth

Green machine: The dream of green cars meets reality

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Green machine: Tackling the plastic menace

Earth

Green machine: Tackling the plastic menace

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Green machine: Bacteria will keep CO<SUB>2</SUB> safely buried

Technology

Green machine: Bacteria will keep CO2 safely buried

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Green machine: Recycled batteries boost electric cars

Earth

Green machine: Recycled batteries boost electric cars

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Green machine: It's your eco-friendly funeral

Earth

Green machine: It's your eco-friendly funeral

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Green machine: Cars could run on sunlight and CO<SUB>2</SUB>

Earth

Green machine: Cars could run on sunlight and CO2

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Green machine: Hitting the lights in wasteful offices

Earth

Green machine: Hitting the lights in wasteful offices

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Technology

Iran's nuclear fuel swap may not prevent sanctions

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Green machine: Cementing greener construction

Earth

Green machine: Cementing greener construction

A lot of carbon dioxide is emitted in the production of cement – but it is set to become a net absorber of the greenhouse gas

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Earth

Green machine: Generating more light than heat

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Earth

Green machine: Cheaper home power from sunlight

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Technology

Can we keep tabs on stockpiles of nuclear fuel?

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Earth

Green machine: Power from the people

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