South Africa's G20 presidency this year will prioritise efforts to help developing countries finance their shift to a low-carbon economy, President Cyril Ramaphosa said, even as the United States radically scales back its support.

G20 talks hosted by South Africa failed to reach consensus, focusing on climate finance. Key finance officials from several countries were absent, and discussions ended without a joint communique. A chair's summary highlighted commitments against protectionism and the need for a transparent multilateral trading system.

Finance ministers and central bank chiefs from the Group of 20 developed and developing nations have gathered in South Africa for a two-day meeting.