The latest stories from the Science & Environment section of the BBC News web site.
Green groups are calling on the PM to cancel the project - but how was the decision reached?
Historical documents are uncovered that provide clues to a puzzle that haunted Charles Darwin.
US Special Envoy on climate John Kerry says President Trump's Paris pull-out endangered lives.
Satellite imagery is being used to count elephants in a breakthrough that could aid conservation.
Re-joining the Paris climate pact is a symbolic and practical first step for the Biden White House.
The cupped clap of a butterfly's wings may be the key to their flying abilities and their survival.
An issue with hydraulic systems led to the early shutdown of a test for Nasa's new "megarocket".
Scientists, using a wind tunnel and high-speed cameras, have captured the butterfly's flying skill.
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.
A critical engine test for Nasa's new "megarocket" - the Space Launch System (SLS) - ends early.
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