China does not view North Koreans who are staying in its territory as refugees and routinely deports them to North Korea. However, in the early 21st century, there have been some cases in which China has allowed North Koreans to leave China instead of sending them back to North Korea. This thesis examines how China’s North Korean refugee policy has changed over the last two decades and whether international factors have influenced this policy. The results suggest that in the 1990’s China gave priority to the repatriation agreement with North Korea. However, in the 2000’s from its own experience with a number of foreign embassy intrusions by North Koreans, China has learned that the issue has potential for creating diplomatic problems with other countries. To avoid this conflict, China has tactically allowed North Koreans who have gained global attention to leave China, but otherwise still adheres its traditional deportation policy.

Le changement climatique est l'un des plus importants enjeux mondiaux. D'une part, la question du changement climatique est liée aux intérêts fondamentaux de l'humanité tout entière, dont elle menace le développement et la destinée future voire la survie. D'autre part, la diplomatie, dans les principaux domaines de la politique internationale, et en raison du manque de moyens, peine à atteindre une logique d’action collective et à établir une gouvernance climatique mondiale. Par sa croissance économique rapide, la Chine est devenue le plus grand émetteur mondial de gaz à effet de serre, et joue un rôle clé dans la diplomatie climatique. L’évolution de sa position dans les négociations sur le climat influence l’architecture du changement climatique international, pour la période pré-2020 aussi bien que pour l’après-2020. La recherche se concentre sur les interactions entre politiques locales, politiques nationales et la diplomatie sur le climat pour mettre en évidence les perspectives de la politique du changement climatique en Chine. Selon cette étude, la construction d’une civilisation écologique et la dé-carbonisation profonde de la Chine reposent principalement sur la transformation de son mode de développement économique. L’instrument de marché d'échange de carbone jouera un rôle décisif dans la future politique climatique de la Chine. Cela déterminera sa politique étrangère future, et lui permettra de jouer un rôle plus constructif / Climate change is one of the most important global issues of the world. On the one hand, the issue of climate change relates to the fundamental interests of the whole humanity, its development and future destiny, and even threats its survival. On the other hand, climate diplomacy, from the different perspectives of the main areas of international politics, and for lack of means, struggles to reach a logic of collective action in global climate governance. With its rapid economic growth, China has become the world's largest emitter of greenhouse gases and plays a key role in climate diplomacy. The evolution of its climate negotiation position influences the international climate change architecture for the pre and post-2020 period. The research will focus on the interaction between local policies, national policies and climate change foreign policy, in order to highlight the perspectives of climate change policy in China. According to this research, the construction of ecological civilization and its deep decarbonisation action in China need the transformation of the economic mode of development. Carbon trading market instruments will play a decisive role in China’s future climate policy. It will determine its foreign policy, and allow China to play a more constructive role