The "huge dependency" of refugees on wood and charcoal-based fuels has horrific consequences on refugees' health, a report has warned.

Some of the UK's dung beetle species are becoming scarcer and could even face extinction, according to scientists gathering information on the insects.

A new calculation fixes the total amount of groundwater on the planet, held in rock and soil below our feet, at 23 million cubic km.

Scientists say a particular fold at the front of the brain tends to be shorter in those schizophrenia patients who experience hallucinations.