After two weeks of climate negotiations riven by arguments over finance and science, the UN climate chief expressed disappointment and denounced governments for “cherry-picking” commitments they have already made and waiting for others to move first.In their final hours on Thursday evening, the talks tried - and failed - to reach a deal that would have balanced developing countries’ demands for reassurance on finance to help them adapt to climate impacts with richer nations’ desire to move forward with work on speeding up emissions reductions in line with science. Simon Stiell, the head of the UN climate body, released a statement as the Bonn talks wound up, saying that “in some negotiating rooms, we’ve heard a familiar tendency towards you-first-ism - groups refusing to deliver commitments or allow the process to move forward unless others go first”. “This is a recipe for gridlock when we need all negotiating tracks to be moving in the fast lane,” he added.Gridlock is where the talks ended, with countries unable to agree conclusions on at least three major areas of climate action, including adaptation and mitigation, invoking “Rule 16”. That means they will be taken up again at COP31 in Türkiye in November.