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Greta Thunberg views a coal mine in Bełchatów, Poland

Environment

Greta Thunberg's amazing year meeting the world's climate scientists

Greta Thunberg: A Year to Change the World, a three-part BBC series, follows the teenage climate change activist as she embarks on a year off school to learn from the world’s top environmental scientists and economists

Culture

The US Navy has a mechanical battery that could power laser weapons

Technology

The US Navy has a mechanical battery that could power laser weapons

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fungus

Environment

Wooden floors rotted by fungi generate electricity when walked on

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Technology

Green energy app lets your car charge when electricity is cheapest

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steel furnace

Environment

Climate targets at risk as green tech triggers higher energy demands

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Sloy Power Station, Loch Lomond, Scotland

Environment

Using mountains as 'water batteries' could cut UK's nuclear power need

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A hydrogen fuel revolution is coming – here's why we might not want it

Technology

A hydrogen fuel revolution is coming – here's why we might not want it

Features

Los Angeles

Environment

US cities under-report carbon emissions by 18 per cent on average

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Dan Hooper

Video

Dan Hooper: What happened at the big bang?

Video

We're running out of lithium for batteries – can we use salt instead?

Technology

We're running out of lithium for batteries – can we use salt instead?

Lithium-ion batteries power the world, but with lithium running low, we desperately need a viable alternative. Here’s why common salt may be our best bet

Features

Space

The Milky Way may have less dark matter than astronomers thought

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Space

Does a halo of mysterious dark matter swirl around every galaxy?

Comment

Technology

UK takes step towards world's first nuclear fusion power station

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Environment

Is Boris Johnson's climate plan enough for the UK to hit net zero?

Analysis