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Earth

Clean energy special: The big clean-up

The US, China and Australia have all signed up to a six-nation pact to use technology to halt climate change, but what will it mean for the world?

Features

Clean energy special: A greener goal for coal

Earth

Clean energy special: A greener goal for coal

Features

Life

Chimp genome: Lessons from our closest cousin

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Life

Primate communication linked to social bonding

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Earth

Coal-powered fuel cell aims for efficiency

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HIV could fight immune diseases

Health

HIV could fight immune diseases

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Life

Cheap drug could polish off HIV

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Technology

What if Electric motors pre-dated steam engines

Features

Sheep can pass BSE to their lambs

Health

Sheep can pass BSE to their lambs

News

Madagascar reveals two new species of lemur

Life

Madagascar reveals two new species of lemur

Nicknamed the "8th Continent" because of its eco-diversity, the island reveals yet more secrets – and they do not get much cuter than this

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Life

Circumcision protects men against HIV

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Health

HIV epidemic sweeps along the heroin highways

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Health

Red alert: The war on tainted donated blood

Features

Health

Africa focus: Foundations for a prosperous future

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