African elephants use dozens of different medicinal plants to treat themselves and their families when they are sick, research reveals.

There are warnings over a combination of significantly reduced landfill space and a breakdown of Glasgow's main incinerator.

People living near a major chemical factory in Lancashire are told they could be at risk of serious health conditions.

The BBC's Courtney Sargent explains how El Niño could have rapidly turned Hurricane Polo into one of the Pacific season's most powerful storms.