The world ‘listened, but did not hear’ climate change warnings, UN environment chief says 

The scene of a fire at Ashdown Forest in East Sussex (Gareth Fuller/PA)

The world “listened, but did not hear” the extent of the dangers of the climate crisis, the head of the United Nations Environment Programme has said.

Inger Andersen criticised global leaders for “not acting strongly enough” and said a generation of politicians, business leaders and “conscious citizens” was needed to make “systematic changes”.