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Scientists have revealed that more than a third of tree species are facing extinction.

The world is wildly off track in tackling climate change, the UN says, as CO2 in the atmosphere accumulates faster than ever

Climate change and sea ice loss leaves polar bears exposed to more diseases, research suggests.

It was 200 times bigger than the one that wiped out the dinosaurs nearly three billion years later.

Colombia is hosting talks to assess global progress in protecting 30% of all land and water by 2030.

Nearly half of waste is now burned for energy, but BBC analysis finds it is as dirty as coal.

The world's most powerful rocket is expected to be back in action again soon

Hurricanes Helene and Milton have bookended a particularly stormy period. What's behind it?

A new 3D scan shows Endurance exactly as it is 3,000m down in Antarctica’s icy waters.

Global wildlife populations have shrunk by an average of 73% in the past 50 years, data shows.

The brown bear, named 128 Grazer, also defeated her rival, Chunk, last year to win the title.

Three scientists share the prize for their revolutionary work on proteins, the buildings blocks of life.

Two scientists share the Nobel Prize for Physics for their work on machine learning.

Water companies must reduce customers' bills over poor performance but it will have a small impact.

The Sphinx, a patch of snow thought to be the longest-lasting in the UK, has melted for the fourth consecutive year.

The mission aims to re-visit the asteroid Nasa diverted when it crashed a probe into it.

A capsule sent to bring back two astronauts stranded on the International Space Station has docked.

The UK's last coal power station, Ratcliffe-on-Soar, is due to end operations on Monday.

The craft will return Butch Wilmore and Suni Williams - stranded since June - to Earth.

A damning picture emerges from a public hearing into the failure of Oceangate’s Titan submersible.