Researchers have found that 90 per cent of all climate disasters are driven by too much or too little water. View on euronews

The research found that 17% of the cities studied were at risk from "climate whiplash" where drought and flooding has become more intense.

London is among the cities which could face more frequent and long-lasting droughts in future, research has found.

The weather in some of the world's most densely populated cities is swinging from droughts to floods and back again as rising temperatures play havoc with the global water cycle, a study commissioned by the charity WaterAid showed on Wednesday.