Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： As green and low-carbon transition has gained world-wide recognition and become the inherent requirement of fully building a modern socialist China, the consumption of critical metals will increase drastically in the next decades. Meanwhile, this will mean a continually increasing potential of critical metals recycling. Facing changes and pandemic unseen in a century and increasing geopolitical conflicts, it has become a strategic consensus on the national security level for Western countries like the United States and Europe Union to acknowledge and enhance the role of recycling in secure provision of critical metals. Here, in this article, we have discussed the future potentials and major challenges of critical metals recycling and reviewed the strategies proposed by the main industrialized countries. Based on this, we aim to help formulate China’s national strategies and countermeasures regarding critical metals recycling and thus contribute to supporting the achievement of China’s “dual carbon” ambition and its green and low-carbon transition in the next decades.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： Food system is the foundation of human society, thus the sustainable transition of food system is one of the key topics towards global sustainability. Facing the global climate crisis, regional conflict, and pandemic that unseen in a century, it becomes critical to build a sustainable food system in line with the Chinese context for ensuring its grain and food security, national nutrition and health, social justice, ecological balance, market effectiveness, and system resilience. To address these focuses, this study analyzed the main issues and challenges faced by China’s current food system, and decoded the relationship between food system and sustainable development goals of the United Nations from supply, demand, and security guarantee mechanism perspectives. Based on these, this study developed a conceptual framework for sustainable food system from life cycle, global, and system perspectives. This study further identified six key dimensions, including security, health, justice, greenness, economy, and resilience, for constructing the strategic framework of China’s sustainable food system, and proposed paths ahead for implementation. We hope to provide some system reflections on how to ensure China’s food security in the new era and further to contribute to sustainable global food system transition with Chinese wisdom and Chinese solutions.
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