Climate change will determine humanity's destiny, says Angela Merkel

German chancellor, UN secretary general, Emmanuel Macron and others urge world's leaders to succeed in their negotiations in Bonn

"Climate change is an issue determining our destiny as mankind - it will determine the wellbeing of all of us," the German chancellor, Angela Merkel, has told the world's nations gathered at a climate summit.

The delegates heard a series of strong political messages on Wednesday, urging them to use the final two days of the summit to complete important work on putting the landmark 2015 Paris deal into action. Without this, the world faces a devastating 3C or more of global warming.