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As more and more people are affected by climate change, the need to understand and prepare for climate-related migration has increased. This inform aims to complement existing research by providing a broader perspective on how displacement and migration related to disasters, climate change and environmental degradation are being addressed by key national-level initiatives and policies in EMN Member Countries as well as non-EU OECD countries.

According to the UNHCR, extreme weather events, such as abnormally intense rainfall, prolonged droughts, heat waves and cyclones are linked to the displacement of approximately 20 million+ people annually. Despite the fact that more people are affected by climate change, it is difficult to directly link environmental degradation to displacement or people's decision to migrate because of the complex interaction between environmental and other factors that can drive migration. Nevertheless, to date, no international regime includes climate change and environmental degradation as a ground for protection.

At the national level, none of the reporting EMN Member Countries, except Italy, have specific national legislation in place on climate-related migration and displacement caused by climate change, nor have they implemented or planned any specific measures to host third-country nationals that might be affected by climate change or climate disasters. Several countries, nonetheless, have protection grounds in place that may be invoked in the case of climate-related migration, or that may be used to prevent the return of third-country nationals. The Czech Republic and Lithuania reported that international protection is occasionally granted on other bases, for example on humanitarian grounds. Germany and France, on the other hand, reported that a removal ban can be considered if the danger is sufficiently concrete. This is the case for France where in 2020 an administrative decision taken by the court of Bordeaux revoked the order of a Bangladeshi citizen to leave French territory and gave him a residence permit on the basis of medical grounds because of the air pollution in the applicant's country of origin. The decision, although to some extent climate-related, did not lead to a climate migrant status.

On a global scale, the phenomenon of climate change and environmental degradation is increasingly debated and studied. In some EMN Member Countries, there are national bodies, NGOs and research institutes that deal with primary research and analysis of this phenomenon. Some examples of organisations that have published on the topic are the Hugo Observatory in Belgium, the Potsdam Institute For Climate Impact Research in Germany, the Irish Aid in Ireland and the Swedish National Knowledge Centre for Climate Change Adaptation in Sweden. In general, the issue is also being addressed by an increasing number of EMN Member Countries and non-EU OECD countries, within the framework of development cooperation and humanitarian aid policies. Numerous projects and initiatives with the countries of origin are also taking place, aiming above all to make their populations more prepared and resilient and to reduce the effects of environmental crises.