China's chief negotiator for climate change talks expressed optimism about the UN climate talks in Cancun, stating that positive outcomes are possible if all parties show genuine political determination. Despite tensions between rich and developing nations over the future of the Kyoto Protocol, China believes that a successful outcome is achievable. Su Wei emphasized the importance of following the Bali road map and UN texts, urging compromise on minor issues while standing firm on principles such as the continuation of the Kyoto Protocol. China accused some developed countries on Friday of attempting to undermine the Kyoto Protocol, which is the United Nations' primary tool in the battle against climate change to reduce global warming. China, the world's largest emitter of carbon, has consistently stated that it will not succumb to pressure to reconsider the Protocol. As the first phase of Kyoto, which requires approximately 40 wealthy nations to meet emission targets, expires in 2012, there is uncertainty about what will happen next, causing concern for investors seeking clarity on long-term climate policies and funding. Although almost all affluent countries have committed to legally binding emission targets under Kyoto, the notable exception is the United States, which has not joined the agreement. Developing nations, like China, are expected to take voluntary measures to control the growth of their emissions. The United States and other wealthy countries are pushing for a new international agreement that does not solely focus on dividing responsibilities between developed and developing nations, as emissions from the developing world now make up over half of global greenhouse gas emissions. However, countries like China and India are hesitant to commit to mandatory emission reduction targets until they see more significant efforts from industrialized nations.