But the median tenure of CEOs worldwide was less than two years and nine months, according to Drake Bearn Morin, a global human-resources consultancy in New York.

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Heavy rainfall in the middle of the month has already caused flooding in parts of the Bearn region, inland of Biarritz, and the French meteorological agency has issued flood warnings for the whole area in the upcoming days.

BBC: Where to go while Biarritz battles beach pollution