BBC Science & Environment
Humans 'sole culprits' in US parrot extinction
A study of North America's only native parrot confirms its disappearance was down to humans alone.
Climate change: Stalemate at UN talks as splits re-appear
Talks in Madrid enter their final day with serious divisions between large emitting countries and small island states
The place where dead eagles are given a new life
Colorado's National Eagle Repository is the only one of its kind in the world.
DNA may hold clues to extinct animal lifespan
Scientists calculate the lifespans of long-lost species, including ancient human relatives.
Denman Glacier: Deepest point on land found in Antarctica
Denman Glacier reaches down to more than 3,500m below sea level. Only ocean trenches go deeper.
Minecraft diamond challenge leaves AI creators stumped
Humans usually take minutes to learn how to find diamonds in the game, but AI agents struggled.
Hendrix in the clear over parakeet release
Researchers say the rock star did not introduce the non-native species in Carnaby Street in the 60s.
Climate change: Anger as protesters barred from UN talks
Around 200 environmental campaigners are barred from climate talks after Greta Thunberg speaks.
Sulawesi art: Animal painting found in cave is 44,000 years old
Experts say the art, found in an Indonesian cave, could be the world's oldest recorded story.
A 'game changer' for cardboard box waste?
A factory in France is trialling a more efficient way of packaging orders, Emma Simpson reports.
Naturalist and presenter David Bellamy dies at 86
Tributes are paid to the "larger-than-life" TV broadcaster, scientist and conservationist.
Greta Thunberg named Time Person of the Year for 2019
The 16-year-old Swedish schoolgirl has inspired a global movement to fight climate change.
Climate change: Methane pulse detected from South Sudan wetlands
Emissions from the region made a major contribution to global greenhouse gas levels in 2010-2016.
Greta Thunberg: 'Almost nothing is being done'
Teenage climate activist Greta Thunberg has addressed the COP25 summit, criticising politicians and CEOs.
Climate change: Major emitters accused of blocking progress at UN talks
Brazil, China, India and Saudi Arabia are criticised as anger grows at a UN climate change meeting.
Climate change: Greenland ice melt 'is accelerating'
The ice sheet's contribution to sea-level rise is now seven times what it was in the 1990s.
Seafloor scar of Bikini A-bomb test still visible
Seventy-three years after the first underwater nuclear explosion, scientists return to map the site.
Climate change: Amazon oil boom under fire at UN talks
Indigenous people come to COP25 to protest plans to expand oil production in the western Amazon.
Refugees at 'increased risk' from extreme weather
Climate change could make the problem worse, multiplying the misery for displaced people.
Grandmother killer whales boost survival of calves
The "grandmother effect" was even stronger with grandmothers that had gone through the menopause.
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