A key meeting of G20 Finance Ministers has begun in Scotland, amid division on the future of economic stimulus packages and paying for climate change. Ministers from the 20 leading economies are in St Andrews, Fife, to discuss entrenching global recovery and avoiding a repeat of the credit crunch. Opening the summit, UK Chancellor Alistair Darling urged his colleagues to make progress on the issue of climate change. He said if no agreement is reached on contributions, the Copenhagen agreement is going to be much more difficult. Although it is on the agenda at the summit there appear to be disagreements about whether it is the right forum for detailed discussion. Some G 20 nations including the US, Japan and Germany, want to debate measures to boost growth but the UK, still mired in a long downturn, and is more cautious.