UN secretary general Antonio Guterres says “humanity has opened the gates to hell,” with extreme weather having horrendous effects on the global population.

Mr Guterres said this on Wednesday as a broad global coalition of “movers and doers” politicians, businesses, and civil society gathered in New York for the first-ever Climate Ambition Summit.

The summit will be held on Thursday.

President Bola Tinubu will attend the meeting.

In his address on the sidelines of the UN General Assembly to politicians, business, activists and civil society leaders, the UN chief issued a stark warning about the dire consequences of inaction.

With extreme weather events accelerating, “humanity has opened the gates to hell,” Mr Guterres said. He described distressing scenes of farmers helplessly watching crops washed away by floods, the emergence of virulent disease due to rising temperatures, and the mass exodus of people fleeing historic wildfires.

“Our focus here is on climate solutions – and our task is urgent,” he said, warning that climate action was being “dwarfed by the scale of the challenge,” with humanity heading towards a 2.8°C temperature rise, increasing danger and instability.

But “the future is not fixed,” he added, and the Paris Agreement target of limiting temperature rise as close as possible to 1.5°C is still attainable.

“We can still build a world of clear air, green jobs, and affordable clean power for all,” said Mr Guterres, addressing the high-level gathering of “first movers and doers.”

Activists are refusing to be silenced, Indigenous Peoples are rallying to defend their ancestral land, and corporate executives are transforming how they do business.

The UN chief is calling for a Climate Solidarity Pact that will hold major emitters more to account and on wealthy countries to support emerging economies to weather the crisis.

According to him, the Acceleration Agenda calls on governments to hit fast forward.

The UN chief spoke of the need for more climate justice, recognising the anger felt by many of the world’s poorest nations disproportionately affected by a crisis they did not cause.

“Many of the poorest nations have every right to be angry,” he added, explaining that promised finance had not materialised while the costs of borrowing remain sky-high.

“All parties must operationalise the Loss and Damage Fund at COP28,” he urged and reminded the developed countries must meet the $100 billion commitment, replenish the Green Climate Fund, and double adaptation funding.

(NAN)