BBC

Antonio Guterres was speaking after Donald Trump refused to back the Paris climate accord.

One of the world's worst hotspots for roadkill in Canada is helped by a project that cuts animal deaths by almost 90%.

The modified drug might help tackle resistant superbug infections, experts hope.

Pictures from across Australia and New Zealand show the Southern Lights in the night sky.

Australia's Great Barrier Reef lost nearly a third of its corals in the past year, officials have said.

Earth-i promises daily, fast-turn-around pictures and colour video of the planet's surface.

Onlookers are treated to a spectacular display as the Southern Lights hit Australia and New Zealand.

Drought, excessive construction and a water cartel are all adding to Bangalore's woes.

Social media users target Cincinnati Zoo on the anniversary of Harambe's killing.

The US president says he will announce this week if he will pull out of the Paris agreement.

Researchers say their study identifies "cognitive factors" that might lie behind brutal acts.

The Royal Geographical Society is releasing films of its scientific explorations from the early 20th Century.

Doctors in Brazil are experimenting with a new treatment for burns by using fish skin.

Scientists say the Solar System's biggest planet is showing itself to be far more complex than anyone thought.

The first launch ever from New Zealand is a step towards sending small satellites into orbit for cheap.

Antibiotics and vitamins helped the injured loggerhead sea turtle back to health in Marathon, in the Florida Keys.

The crashed European spacecraft Schiaparelli was ill-prepared for its attempt at landing on the surface of Mars, a report suggests.

Flamingos expend less energy standing on one leg than in a two-legged stance, scientists confirm.

As a warming climate threatens traditional food supplies in the Arctic, one rural Alaskan village is flying in hundreds of reindeer by cargo plane. James Cook went to find out why.

A man abandoned as a baby 61 years ago traced his family using a DNA detective. But what do they do?