BBC News

Footage of a bear inscribed with "T-34" - the name of an iconic Soviet tank - is shared in Russia.

WWF and the Prado Museum join forces to raise the alarm during the COP25 summit in Madrid.

More than half of US national parks are threatened by invasive animals, like pythons and feral pigs.

Provisional data suggests the decade from 2010-2019 is the warmest yet recorded.

Nasa credited an Indian engineer, Shanmuga Subramanian, with helping locate the site of the debris.

Potent chemicals are unwittingly passed down from mother to calf, according to a UK study.

As the UN has its annual climate change conference, we look at what it's for and if it ever makes a difference.

The Malagasy tree boa is under threat from poaching and fires.

The president of the Marshall Islands tells a summit that rising tides threaten its existence.

The tiger has traversed 1,300km in five months, the furthest a big cat is known to have walked in India.

The notion that thinning ice shelves enable glacier speed-up and mass loss is cemented.

Almost 200 countries are meeting in Madrid to discuss what they're doing to tackle climate change.

The foam is said to be caused by pollutants in sewage mixing with sea water and frothed by waves.

Fishing nets and rope were among the debris found inside the whale which stranded on the Isle of Harris.

Delegates from almost 200 countries meet in the Spanish capital on Monday.

Henrik Stiesdal has been thinking about wind turbines since he was a teenager.

The new fruit took US scientists two decades to develop and the launch cost $10m (£7.9m).

Fifteen-year-old Cheikh Bamba Diaby got into robotics after he had to unblock his sister's mobile phone.

The mammal, believed to be a minke whale, was found below Battersea Bridge in London.

The Hollywood actor dismisses Jair Bolsonaro's claim he "gave money to set the Amazon on fire".

A fridge recycling plant believes it has found a more sustainable way to dispose of them.

A UK team arrives in Antarctica to test its theory for why so few iron meteorites are found there.

A huge wildlife haven is at risk as Russian coal ships exploit melting Arctic ice in Siberia.

A multi-billion-euro funding package for the European Space Agency is agreed by its member states.

Burning of the rainforest appears to speed up the melting of tropical glaciers, scientists find.

Scientists say the specimen could represent an evolutionary link between wolves and modern dogs.

It's the greenest election campaign ever - but how much are the parties promising on climate change?

Scientists team up with group Massive Attack to create blueprint that will 'transform the music industry'.

Households bought 54 "reusable" bags on average last year, research says, prompting calls for a ban.

Athena and Lisa, two major astronomy projects of the 2030s, should launch within a year of each other.

Scientists are shocked at what they find in the polluted waters, but say there is hope.

Irreversible climatic changes could be triggered in a few decades say some scientists but not everyone agrees.

A woman who records sightings of the unusual rodents found hotspots for them in East and West Sussex.

After some doubts, it seems Britain will now play its part in the big European Space Agency council.

Extinction reconstruction with ancient DNA reveals humans were responsible for the demise of the giant, flightless great auk.

If you care about what the parties are promising to do about the environment, here are some key issues to watch for.

Forests can cope in a warming world only if temperatures increase in line with rises in CO2, a study finds.

The UN says nations must "dramatically strengthen" carbon cuts to avoid dangerous climate change.

The World Meteorological Organization says the levels of warming gases continue to reach new highs.

As India increases its use of cement, the boss of an Indian company hopes to curb its emissions.

This year looks set to see the largest fall in electricity production from coal ever, a new report says.

The species is now extinct in Malaysia, with fewer than 100 animals believed to exist elsewhere.

The Gobi Desert produces stunning fossils but many Mongolians never get the chance to see them.

Research ministers meet in Seville next week to approve European Space Agency projects and funding.

Sustainable, renewable and green: environmental goals the aviation industry is now grappling with.

The band won't go on a world tour until they can make their concerts "environmentally beneficial".

Simon Armitage hopes the Laurel Prize will promote discussion about "our environmental predicament".

The US company's new rocket prototype experiences a major failure during pressurisation testing.

Bushfires have hit areas near Adelaide and created a smoky haze blanketing the city.

An assessment shows rapid loss of trees, shrubs and herbs in countries such as Ethiopia and Tanzania.