Richest oil states should pay climate tax, says Gordon Brown
The former Labour PM wants the wealthiest oil producers to help poorer nations tackle climate change.
Author Archives: BBC News - Science & Environment
The shadowy Chinese firm that owns chunks of Cambodia
It secured a deal to control a fifth of Cambodia's coastline - 15 years on, it has barely got started.
Osiris-Rex: Nasa confirms return of asteroid Bennu samples
A capsule carrying debris from asteroid Bennu lands safely in the Utah desert.