Campaign group WWF says there’s a ‘need for parties to get together and work through this’ as experts call for $1tn to reach developing countries each year

• Climate crisis to blame for dozens of ‘impossible’ heatwaves, studies reveal

How usual is it to have G20 happening at the same time as Cop? According to Jen Iris Allan, a senior lecturer at Cardiff University who also writes the Regular Earth Negotiations Bulletin, commenting on Bluesky, it’s not normal at all.

Cop29 happening at the same time as the G20 is a rare opportunity. It gets the leaders of the big economies together in a small setting. They could strike a side deal that would really help here.

The new climate finance target is the big issue that will define COP29. Government ministers are arriving to thrash out everything from the amount of money raised to who contributes towards it.

We’ve seen a few versions of the text as parties make sure their views are represented while trying to produce something their governments can work with. The number of “options” is lower than it was on Wednesday. But the number of brackets - meaning undecided bits - is higher.

It’s still long: 25 pages. Negotiators started with a 9-page text, which they rejected as “unbalanced” - then lots of stuff got added back in. It will need to be shorter. The EU chief negotiator told journalists last week that a 2-page text could capture “everything we need”.