With China leading the way by announcing its first emission cuts, world leaders have said they are getting more serious about fighting climate change and the deadly extreme weather that comes with it. At the United Nations high-level climate summit on Wednesday, Chinese President Xi Jinping announced the world’s largest carbon-polluting country would aim to cut emissions by 7 per cent to 10 per cent by 2035. China spews more than 31 per cent of the world’s carbon dioxide emissions, and they have long been soaring. The announcement came as more than 100 world leaders gathered to talk of increased urgency and the need for stronger efforts to curb the spewing of heat-trapping gases. With major international climate negotiations in Brazil six and a half weeks away, the United Nations Secretary-General Antonio Guterres convened a special leaders summit during the General Assembly to focus on specific plans to curb emissions from coal, oil and natural gas.