An Observer’s Notebook is the third in the series after The Blue Book: A Writer’s Journal and The Yellow Book: A Traveller’s ...

In his vocal war on fossil fuels Mr Petro made Colombia the first major oil-producing country to halt new ...

An elite squad of all-female guards known as the “Revolutionary Nuns” protected Libyan dictator Muammar Gaddafi. Trained in ...

Ancient rocks reveal there were several humid spells in Arabia’s past, which might have given early hominins a route out of ...