SciDev.Net: China expects developed countries to show leadership in the Copenhagen climate negotiations and commit to greater emissions reductions, says Jiahua Pan from the Institute for Urban and Environmental Studies, China. The developing world is unlikely to take serious action against climate change unless developed nations agree to cut their emissions by at least 40 per cent by 2020, says Pan. This means decarbonising at twice the rate needed to meet the G8’s target cuts of 50 per …