参与者→引领者！中国严格履行国际环境公约义务 如期实现各阶段履约目标

Core Viewpoint - China has transitioned from a participant to a leader in the global effort to eliminate ozone-depleting substances, achieving significant milestones in compliance with international environmental agreements [1][4]. Group 1: Compliance and Achievements - China has strictly fulfilled its obligations under international environmental conventions, achieving all phased compliance targets on schedule [1]. - As of now, China has eliminated approximately 628,000 tons of ozone-depleting substances, accounting for over half of the total elimination in developing countries [1]. - Over the past 30 years, China has progressively phased out ozone-depleting substances, preventing the emission of 26 billion tons of carbon dioxide equivalent greenhouse gases [1]. Group 2: Global Context and Future Outlook - Globally, 99% of ozone-depleting substances have been successfully eliminated, with the Antarctic ozone hole showing signs of healing [3]. - Scientific assessments indicate that the Earth's ozone layer is expected to recover to levels seen before 1980 by the middle of this century [3]. Group 3: Leadership Role - China has played a crucial leadership role in the gradual elimination of ozone-depleting chemicals and the reduction of hydrofluorocarbons, which contribute to climate change, under the framework of the Montreal Protocol [4].