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Artist's impression of the Swansea tidal power project, showing a walkway around the periphery

Earth

Why tidal power won't solve the world's renewable energy needs

There are widespread calls for the UK government not to abandon a trailblazing tidal power project, but this energy source is no green panacea, says Hans van Haren

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Africa's 2000-year-old trees of life are suddenly dying off

Earth

Africa's 2000-year-old trees of life are suddenly dying off

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Solar & Wind Farm

Earth

A renewables revolution is afoot – but who will benefit?

Leader

renewable energy

Earth

Finally we can power the planet on renewables alone – here's how

Features

Europeans now burn more palm oil in their cars than they eat

Earth

Europeans now burn more palm oil in their cars than they eat

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A day used to be less than 19 hours long 1.4 billion years ago

Space

A day used to be less than 19 hours long 1.4 billion years ago

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The Great Barrier Reef has died 5 times in the last 30,000 years

Earth

The Great Barrier Reef has died 5 times in the last 30,000 years

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Asteroid that killed the dinosaurs caused massive global warming

Earth

Asteroid that killed the dinosaurs caused massive global warming

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Someone is wrecking the ozone layer again. They must be stopped

Earth

Someone is wrecking the ozone layer again. They must be stopped

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Whale swimming past plastic

Earth

Plastic waste is a problem – but some solutions are even worse

Plastics have done wonders for hygiene and human health. We need to fix the waste problem – but don’t throw out the baby with the bath tub

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Earth

Fixing planet plastic: How we'll really solve our waste problem

Features

Earth

Worst-case climate change scenario is even worse than we thought

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Earth

We messed up our figures on how much carbon dioxide is too much

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Earth

Towing icebergs to Cape Town is a poor way to halt water crisis

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