Scientists reveal how a gigantic volcanic eruption on a small Indonesian island wreaked global havoc in the 13th-century causing the Little Ice Age.

Forensic techniques are used to investigate bizarre landscapes in the USA, Iceland and on the floor of the English Channel that were carved out by raging floods on a huge scale thousands of years ago.

Scientists examine The Great Hurricane of 1780, the most powerful event of its kind on record, to discover what made it so destructive and if warming climates could increase the occurrence of such storms.