By Jake Spring and Lisandra Paraguassu RIO DE JANEIRO (Reuters) -Diplomatic tensions over global warming spilled over into the G20 summit negotiations in Brazil this week, with sources saying the 20 major economies reached a fragile consensus on climate finance that had eluded U.

With negotiations on climate finance in Baku at a standstill, leaders are turning to the G20 meeting in Brazil for a breakthrough .

The UN's climate chief urged G20 leaders on Saturday to push COP29 talks towards a deal to raise money for developing nations as diplomats struggled to find common ground in marathon negotiations.Samir Bejanov,

The U.N.'s climate chief called on leaders of the world's biggest economies on Saturday to send a signal of support for global climate finance efforts when they meet in Rio de Janeiro next week, to help trigger a deal at COP29 talks.

Half way through the UN climate conference, the UN climate chief looked ahead to the gathering of the Group of 20 (G20) powers and issued a dire warning about the outlook for the globe unless changes are made.