Russian attempt to repair tunnel area sparks safe-haven procedure for five other astronauts onboard.

Swampy mangrove forests are staging a surprise comeback - which is good news for coastal communities and the climate.

An internationally important nature reserve in Hampshire is under threat from failing flood defences.

A new phase of the natural El Niño weather pattern could begin in a matter of weeks, the UN has warned, boosting temperatures on a planet already under strain from climate change.

A newly discovered species raises hope that some native British habitats could be restored.