The 30th United Nations Climate Change Conference, commonly known as COP30, has kicked off in Brazil's Amazon city of Belem. The UN has warned that the world has failed to meet the goals set in the 2015 Paris agreement, limiting global temperature rise to 1.5 degrees Celsius above pre industrial levels, and is now calling for immediate action. In September, Chinese President Xi Jinping announced China's 2035 climate pledges to further strengthen the country's climate response. Will COP30 achieve substantial results? Is it still possible to keep global warming below 1.5 degrees Celsius by the end of the century? What does China's commitment to a green transition mean for the world? Can the Paris agreement remain strong despite U.S. withdrawal?