With the United States boycotting the summit, other nations sought to strike new deals, and some took a tougher tone with President Trump.

Tensions between the U.S. and Canada remain high following months of Trump administration hardball over trade deals.

South African President Cyril Ramaphosa brought the G20 summit in Johannesburg to a close Saturday, and rejected a proposal for passing the gavel for next year's meeting in the United States.

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.

JOHANNESBURG/WASHINGTON (Reuters) -Group of 20 leaders adopted a declaration addressing the climate crisis and other global challenges on Saturday over U.S. objections, prompting the White House to accuse South Africa of weaponizing its leadership of the group this year.

Poorer nations at the Group of 20 summit in South Africa have urged world leaders to address climate action and debt issues affecting the developing world.

La cumbre del Grupo de los 20 en Sudáfrica concluyó el domingo con la notable ausencia de Estados Unidos, el próximo

G20 leaders gathered Sunday in South Africa hailed multilateralism -- even as they struggled to adapt to a changing world order beset by go-it-alone US policies, wars and deepening geopolitical rivalries.