Climate change disaster is biggest threat to global economy in 2016, say experts

Global warming heads top economists' concerns for first time but large-scale forced migration seen as most likely risk to materialise

A catastrophe caused by climate change is seen as the biggest potential threat to the global economy in 2016, according to a survey of 750 experts conducted by the World Economic Forum.

The annual assessment of risks conducted by the WEF before its annual meeting in Davos on 20-23 January showed that global warming had catapulted its way to the top of the list of concerns.