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The Arctic system is moving toward a new state that falls outside the envelope of glacial‐interglacial fluctuations that prevailed during recent Earth history. This future Arctic is likely to have dramatically less permanent ice than exists at present. At the present rate of change, a summer ice‐free Arctic Ocean within a century is a real possibility, a state not witnessed for at least a million years. The change appears to be driven largely by feedback‐enhanced global climate warming, and there seem to be few, if any processes or feedbacks within the Arctic system that are capable of altering the trajectory toward this “super interglacial” state.

ABSTRACT. Food security is a global societal challenge, and one geographic region where food insecurity is increasing is the North American Arctic and Subarctic. In this paper we synthesize research on food security in this region; important precursors and early work include reports on the impacts of land claims, the cumulative effects of industrial development and environmental change, and the health impacts of the nutrition transition among Indigenous peoples. Building on these foundations, food security research in the North has followed a path similar to that taken in the global food security literature, beginning with nutritional adequacy and security of food supplies and then downscaling to a focus on issues at the livelihood and household level. Our meta-analysis of the peer-reviewed literature reveals many reasons why people are food-insecure: challenges such as remoteness, climate change, and the high costs of food and fuel all play important roles. However, the primary drivers of food insecurity that we identify in this review relate to governance and policy challenges that have been recognized and critiqued for decades. Recommendations for future research include an improved focus on participatory research and food security interventions that acknowledge and focus on supporting the rights of local peoples to pursue food security on their own terms. This paper is relevant in the context of climatic and environmental change because it captures the role of shifting political ecologies as increased geopolitical interests in the North appear to be obscuring the rights and needs of local peoples to access and control their own land and resources.Key words: Alaska Natives; Canada First Nations; climate change; development; food security; food sovereignty; governance; Indigenous peoples; social justice RÉSUMÉ. De par le monde, l'insécurité alimentaire constitue un enjeu du point de vue de la société. L'Arctique et la région subarctique de l'Amérique du Nord sont des régions géographiques où l'insécurité alimentaire prend de l'ampleur. Dans cette communication, nous faisons la synthèse des travaux de recherche effectués au sujet de la sécurité alimentaire dans cette région. Parmi les précurseurs et les premiers travaux importants réalisés à ce sujet, notons des rapports sur les incidences des revendications territoriales, les effets cumulatifs du développement industriel et des changements sur l'environnement, de même que les effets sur la santé découlant de la transition alimentaire chez les peuples indigènes. S'appuyant sur ces assises, les recherches sur la sécurité alimentaire dans le Nord ont été conçues ni plus ni moins comme les autres études en matière de sécurité alimentaire dans le monde. Les recherches ont d'abord porté sur le caractère adéquat de l'alimentation et sur la sécurité des approvisionnements alimentaires, après quoi elles se sont concentrées sur des enjeux plus spécifiques comme ceux propres aux moyens de subsistance et aux ménages. Notre méta-analyse de la documentation révisée par des ...

In the Arctic, permafrost extends up to 500 m below the ground surface, and it is generally just the top metre that thaws in summer. Lakes, rivers, and wetlands on the arctic landscape are normally not connected with groundwater in the same way that they are in temperate regions. When the surface is frozen in winter, only lakes deeper than 2 m and rivers with significant flow retain liquid water. Surface water is largely abundant in summer, when it serves as a breeding ground for fish, birds, and mammals. In winter, many mammals and birds are forced to migrate out of the Arctic. Fish must seek out lakes or rivers deep enough to provide good overwintering habitat.Humans in the Arctic rely on surface water in many ways. Surface water meets domestic needs such as drinking, cooking, and cleaning as well as subsistence and industrial demands. Indigenous communities depend on sea ice and waterways for transportation across the landscape and access to traditional country foods. The minerals, mining, and oil and gas industries also use large quantities of surface water during winter to build ice roads and maintain infrastructure. As demand for this limited, but heavily-relied-upon resource continues to increase, it is now more critical than ever to understand the impacts of climate change on food and water security in the Arctic.

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