Negotiations at Cop29 in Baku, Azerbaijan were scheduled to finish on Friday evening but a final deal on climate finance remains elusive.

COPs have been getting progressively longer; the excellent team at Carbon Brief extrapolated the trend line, which suggests COP29 will end in the small hours of Sunday morning. Even that may be optimistic.

The European Union, United States and other wealthy countries at the COP29 climate summit have agreed to raise their offer of a global finance target to $300 billion per year by 2035, sources told Reuters on Saturday.

The European Union, U.S. and other wealthy countries at the COP29 summit have agreed to raise their offer to $300 billion per year by 2035 to help developing nations deal with climate change, sources told Reuters on Saturday,

UN climate talks looked set to overrun into the weekend as a deep gulf formed between richer and poorer countries over cash to help those most vulnerable in a warming world. Wealthier nations offered to more than double to $250bn a year the cash they give developing countries annually to fight climate change.