LIVE BLOG: Negotiators meet in Bonn for the final round of talks ahead of Lima in December
Chairs also call for Warsaw summit in November to start delivering decisions on how global treaty will work
Tentative 40% emissions reduction goal suggested, full policy package to be put forward before 2014
Divisions over plans to develop a global climate deal appear after two influential groups of developing nations accused rich countries of undermining negotiations
Group including China, India, Saudi Arabia and the Philippines stress onus is on developed world to show climate ambition
Addis Ababa plan includes a five year review to decide if once poor countries should shoulder more of the burden of climate change action