Countries have worked through the night to broker a deal on climate finance at the UN climate summit as negotiations stretched into overtime. Patience is wearing thin on the ground at Cop29 in Azerbaijan as negotiations in the host city,

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.

At COP29 in Baku, a proposed global finance deal to aid climate change efforts sparked division and discontent. Delegates struggled to agree on funding strategies for poorer nations as the summit's deadline approached.

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.

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 COP29 presidency on Friday released a new draft climate finance deal proposal that would have developed nations take the lead in providing $250 billion per year by 2035. The draft also sets a broader goal to raise $1.

The UN's COP29 climate talks have overrun into the weekend as a deep gulf formed between richer and poorer countries over cash.

Fierce bargaining at UN climate talks in Azerbaijan dragged into Saturday after a $250 billion a year offer from rich nations was flatly refused by developing countries hardest hit by