BBC News

The ECT allowed fossil-fuel companies to sue governments for billions in compensation for lost profits.

Scientists deduce how whales sing under the sea, and why they can be drowned out by noisy ships.

Scientists want to use the robot plane to reach inaccessible areas to understand climate change.

Artificial intelligence software is being used to look for signs of alien lifeforms.

The veteran ERS-2 Earth observation spacecraft dives to destruction 2,000km west of California.

Pollution controls have seen mercury emissions plummet - but levels in tuna have remained stable.

Cantor's giant softshell turtle is native to the rivers of south Asia and is critically endangered.

Investigation by Global Witness suggests cattle farming is driving illegal deforestation in the savannah featured in BBC's Planet Earth III.

Rishi Sunak unveils support for farming and food production, at the NFU's annual conference.

Astronomers report an object that shines with a brightness equivalent to 500 trillion suns.

The zoo found the coins during a routine examination and urged visitors not to throw coins into exhibits.

Animal welfare charities welcome the African Union decision to ban the donkey skin trade across the continent.

Right to roam campaigners say hundreds of "open country" locations are inaccessible to the public.

Extremely potent greenhouse gas leaked from a Kazakh well for over six months.

The quest to stop the slaughter of working donkeys, as demand grows for a traditional remedy made from their skin.

A stingray called Charlotte is pregnant despite having no mate, in a suspected case of parthenogenesis.

If the Odysseus craft lands safely it would be the first private mission to successfully land on the Moon.

If all goes well, it would mark the first time a private firm has successfully landed a spacecraft on the Moon.

It may be bigger than a large city - but the world's biggest iceberg can still turn on a sixpence.

It is hoped the creation of a marshland site will be a "corridor" for wildlife including wading birds.

Melting ice is forcing this iconic Arctic species to spend more time on land, where they struggle for food.

Sea-bird counts after avian flu show serious declines in three species, the charity RSPB says.

A UK pesticide producer did not look at key health records in its Parkinson's study, legal papers show.

At least three homes in Dana Point, California are under threat after a portion of the cliff they're on gave way.

Campaigners want water company executives to lose bonuses now if their firm causes environmental damage.

Human activity is leaving some migratory species like green turtles facing extinction, a UN report says.

In 1984 the presence of dinosaur fossils in Scotland was confirmed for the first time.

Scientists think eruptions on the Reykjanes Peninsula could continue for decades or even centuries.

A backlash against plans to reform agriculture in Wales is predicted by union leaders.

Nuclear fusion still remains a long way off but brings the world one step closer to endless clean energy.

As complaints of human waste pile up, new rules require climbers to properly dispose of their stools.

The last 12 months were the hottest on record, temporarily sending the world past a deeply symbolic mark.

Campaign group River Action say the Environment Agency did not enforce rules to stop fertilisers and chicken manure getting in river.

A Dane and a Briton are lauded for their critical contributions to the development of wind power.

Students win a prize for using AI to reveal the contents of 2000-year-old text for the first time.

The Lords Climate Change Committee called on the government to push back against mistruths on range and cost.

The pterosaur soared over the heads of dinosaurs in Scotland 168-166 million years ago.

Researchers want a new, much bigger supercollider but is it worth us paying the 12bn price tag?

The British Antarctic Survey hope the new technology will change what we know about global warming.

River flowing past the famous white 'Bake Off' tent is among those polluted by chemicals and tyre particles.

Cheap, highly insulating and sustainable, straw has a lot of potential for the building industry.

National award opens to young science writers from state schools around the UK.

Ecologists hope a new map of our historic hedgerows will lead to better protection for a key wildlife habitat.

The reawakened craft has begun detailed analysis of the lunar surface including nearby rocks

The National Trust hopes to develop swathes of humid woodland on the Atlantic coast.

The lander has begun sending photos, including that of a nearby rock nicknamed "toy poodle".

The 20-deck Icon of the Seas' maiden voyage comes amid concerns about the vessel's methane emissions.

The world's biggest wildlife citizen science project is back, here is a selection of your photos.

Greenfinches, sparrows and starlings have declined the most but other species including goldfinches are thriving.

Hermit crabs all over the world are using our discarded plastic and other waste in place of their natural shells.