Climate change: Six questions about the Cumbria coal controversy

Green groups are calling on the PM to cancel the project - but how was the decision reached?

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New light shed on Charles Darwin's 'abominable mystery'

Historical documents are uncovered that provide clues to a puzzle that haunted Charles Darwin.

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Climate change: Trump's Paris withdrawal was 'reckless' - John Kerry

US Special Envoy on climate John Kerry says President Trump's Paris pull-out endangered lives.

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Elephants counted from space for conservation

Satellite imagery is being used to count elephants in a breakthrough that could aid conservation.

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Climate change: Biden's first act sets tone for ambitious approach

Re-joining the Paris climate pact is a symbolic and practical first step for the Biden White House.

3d

Natural wonder: Wing 'clap' solves mystery of butterfly flight

The cupped clap of a butterfly's wings may be the key to their flying abilities and their survival.

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SLS: Nasa finds cause of 'megarocket' test shutdown

An issue with hydraulic systems led to the early shutdown of a test for Nasa's new "megarocket".

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Butterfly wings captured in slow motion footage

Scientists, using a wind tunnel and high-speed cameras, have captured the butterfly's flying skill.

4d

Coal mine go-ahead 'undermines climate summit'

The UK's push to secure a deal over fossil fuels is being undercut by a decision to allow a new coal mine, MPs warn.

4d

SLS: Nasa's 'megarocket' engine test ends early

A critical engine test for Nasa's new "megarocket" - the Space Launch System (SLS) - ends early.

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