| Summary: | International audience This conference is part of the Nunataryuk project (Horizon 2020 EU finding2017-2022), which seeks to determine the impacts of thawing land, coast and subsea permafrost on the global climate and on humans in the Arctic and to develop targeted and co-designed adaptation and mitigation strategies. We address three research questions: what are (i) the impacts on Cultural Dimensions, (ii) the impacts on Human Security, and (iii) the impacts on the Economic System. Our preliminary results show that in Tiksi, most people do not identify any risks linked to permafrost since Tiksi is built on rocky ground, people assert that infrastructure damages are linked to a lack of funding for maintenance and repair, and outmigration of young people prevent Tiksi development. In Bykovskyi, people observe marine fish catch have been declining for the last 7 years (which they explain by the adverse impact of industrial nets, oil exploration, and increased water discharge in Lena river linked to permafrost thaw), and people observe coastal erosion due to permafrost thaw but this is not the first concern. In Tiksi and Bykovskyi, people observe new species and changes in seasonal temperatures, young people plan to migrate for personal reasons, and people feel attached to their place of living.
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