BAKU: Developing countries need at least US$1 trillion per year by the end of the decade to cope with climate change, economists told UN talks in Baku, where early efforts to reach a finance deal risk being overshadowed by diplomatic rows. Money is a focus at COP29 whose success is likely to be judged by whether it can agree a new target for how much richer countries, development lenders and the private sector must provide each year to help developing countries finance the transition to greener