BBC News

Denman Glacier reaches down to more than 3,500m below sea level. Only ocean trenches go deeper.

Humans usually take minutes to learn how to find diamonds in the game, but AI agents struggled.

Researchers say the rock star did not introduce the non-native species in Carnaby Street in the 60s.

Around 200 environmental campaigners are barred from climate talks after Greta Thunberg speaks.

Experts say the art, found in an Indonesian cave, could be the world's oldest recorded story.

A factory in France is trialling a more efficient way of packaging orders, Emma Simpson reports.

Tributes are paid to the "larger-than-life" TV broadcaster, scientist and conservationist.

The 16-year-old Swedish schoolgirl has inspired a global movement to fight climate change.

Emissions from the region made a major contribution to global greenhouse gas levels in 2010-2016.

Teenage climate activist Greta Thunberg has addressed the COP25 summit, criticising politicians and CEOs.

Brazil, China, India and Saudi Arabia are criticised as anger grows at a UN climate change meeting.

The ice sheet's contribution to sea-level rise is now seven times what it was in the 1990s.

Seventy-three years after the first underwater nuclear explosion, scientists return to map the site.

Indigenous people come to COP25 to protest plans to expand oil production in the western Amazon.

Climate change could make the problem worse, multiplying the misery for displaced people.

The "grandmother effect" was even stronger with grandmothers that had gone through the menopause.

A new study ranks the importance and vulnerability of high-mountain stores of water.

Sumatran tigers are critically endangered - with fewer than 400 believed to be left in the wild.

The science broadcaster explains why he's been delving into the lives of some extraordinary scientists.

The outcome of the COP25 UN climate conference in Spain will influence the event in Scotland next year.

Political posturing is harming attempts to address key issues at the UN climate talks, participants say.

Which business sectors will be winners and losers when, and if, climate change policies take affect?

The Norwegian-South African duo met up with a rescue team as they were dangerously low on food.

There are concerns tyre infill from sports pitches is ending up in waterways and harming wildlife.

The Seychelles has swapped 5% of its national debt for a cash injection to fight climate change and save its ocean.

Your questions answered: The environment, wildlife and climate change.

A warmer world means oceans are able to hold less dissolved oxygen, which is bad news for many fish.

Friends of the Earth rates the party above the Greens and Lib Dems in its environment policy survey.

A climate system in the Indian Ocean, known as the dipole, is behind extreme weather events in East Africa and Australia.

With insect populations in decline, a study shows how gardens can support beetles, spiders and the like.

From renting your tree, to sponsoring a turkey, a growing number of people are having a greener Christmas.

Land speed record holder Andy Green describes his final high-speed test run in the Bloodhound car.

Life has changed a lot for the environmental activist in the space of a year.

The Norwegian-South African duo are tired and hungry after trekking hundreds of miles.

As Sydney gets a brand new zoo, animal experts question what we really learn from visiting captive animals.

As the annual COP25 climate change summit continues in Madrid, we asked delegates from all over the world how they were adapting their lives for the sake of the environment.

Scientists are getting closer to tracing the sources of meteorites that fall to Earth.

Tree conservation strategies based on genetic data are best suited for landscapes affected by a rapidly changing climate, a study suggests.

As plastic piles up on beaches, hermit crabs are getting trapped in plastic containers and killed.

British engineers test technologies that will be needed to bring samples of Martian rock to Earth.

A newly discovered planet offers insights into the Sun's demise in 5-6 billion years.

The Russian leader says the US "militarisation" of space means Moscow has to respond.

In the 'largest study of its kind' researchers studied 70,000 bird specimens over a 40-year period.

Nikki Henderson, who helped Greta Thunberg get to Madrid, reveals what happened on their 19-day journey.

Rangers on the Farne Islands in Northumberland use drones to keep track of the growing grey seal population.

The elm can be restored to its former glory despite Dutch elm disease, say experts.

Emissions of CO2 have risen in 2019, say researchers, as oil and gas use continues to grow.

Scientists make artificial nerve cells, paving the way for new ways to repair the human brain.

Climate activist Greta Thunberg said that adults should stop making young people "angry" over global warming.

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