Global News
Pacific 'pumice raft' stretched to 'horizon'
Two sailors recall their encounter with a vast sea of floating volcanic rocks in the Pacific Ocean.
Could farmed insects be the perfect pet-food ingredient?
Insect-based foods may be better for pets than prime steak, according to the British Veterinary Association.
Climate change: Should you fly, drive or take the train?
How should you travel to reduce your carbon footprint?
The Cold War spy technology which we all use
Radio-frequency identification, famously used to bug the US embassy in Moscow, is a cheap way to track objects and data.
What is 'blobology' and how is it transforming biology?
Spectacular images from a new microscope spark a "revolution" in biology
The Amazon in Brazil is on fire - how bad is it?
Thousands of fires are ravaging the Amazon rainforest in Brazil. How bad are they?
How fire shaped humans, and forged the modern economy
If you rule out everything made by fire, we would not be left with much of an economy at all.
Has Kenya's plastic bag ban worked?
Plastic carrier bags were made illegal, so how has the government enforced the ban?
Amazon fires: Forest loss challenges Paris climate ambition
Fossil fuel burning is the big issue but continued forest cover loss will make climate targets harder to achieve, say scientists.
Greta Thunberg: Why are young climate activists facing...
In the fractious climate debate, criticism of young activists has sometimes spiralled into abuse.
