As he brought the gavel down on a G20 summit with a tongue-in-cheek dig at the United States, South African President Cyril Ramaphosa struck a defiant note towards the isolationist stance of President Donald Trump and his self-imposed exile from multilateral bodies Washington once championed.

The leaders of the world's top economies have issued a rebuke to US President Donald Trump, signing a joint statement at the G20 summit strengthening their commitment to the Paris climate agreement and declaring their support for open trade.

The Group of 20 summit in South Africa is set to end with another diplomatic spat involving the United States after the host country refused to hand over the rotating presidency of the bloc to what it described as a junior U.

Asked if Mr Trump would listen to the position being put forward by European leaders, he said: “I think he will listen. We can see from president Trump’s disposition that he hates war. He feels war is very wasteful of human life, very damaging to economies. I think that’s a good principle to have.”

Mark Carney said the world can make progress on a range of issues without the US, and that consensus reached at a Group of 20 leaders’ meeting in Johannesburg.

US Secretary of State Marco Rubio projected optimism on Sunday after what he described as productive discussions between American and Ukrainian officials in Geneva, Switzerland, aimed at stopping

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Negotiators had been working off an early proposal that bipartisan lawmakers say would further destabilize global security and reward Russia after its 2022 invasion.