How UN secretary general became an outspoken voice for climate action

António Guterres: ‘Some governments and business leaders are saying one thing but doing another. Simply put, they are lying.’ Composite: Guardian Design/Getty Images

Humanity is undertaking “collective suicide”, the UN secretary general told ministers from 40 countries meeting to discuss the climate crisis this summer.

“Half of humanity is in the danger zone from floods, droughts, extreme storms and wildfires. No nation is immune. Yet we continue to feed our fossil fuel addiction.”