New record set for world's hottest day - as scientist warns milestone is a 'death sentence'

The world has experienced its hottest day on record, according to meteorologists.

The average global temperature reached 17.01C (62.62F) on Monday, according to the US National Centres for Environmental Prediction.

The figure surpasses the previous record of 16.92C (62.46F) - set back in August 2016.