Fiji, Nov. 18 -- UN Climate Change Executive Secretary Simon Stiell has told world leaders at COP30 that negotiations must accelerate immediately, warning that slow progress in the negotiation rooms is out of step with the rapid shifts underway in the global economy.

"Your arrival meets COP mid-stride," Stiell said as he opened the high-level segment in Belem on Monday.

"We are no longer talking about what this COP must do - we are doing it. But we must strive for more."

Stiell praised the "spirit of goodwill" shown in week one, saying delegates understood the stakes.

"It reflects a widespread conviction that the Paris Agreement is humanity's only way to survive this global climate crisis, and to spread the vast benefits of climate ac...