Climate change will affect ecosystems , living standards , health  and food security  globally, and these changes may exacerbate violence and political instability  with implications for national security in North America . Climate variability, hazards and trends, to date, have played a role in exacerbating conflict, but the influence of climate appears to be minor and more uncertain than the roles of low socioeconomic development, low state capability and high intergroup inequality . More profound impacts from climate change on weather and seasons, as well as changing socioeconomic conditions, could lead to patterns of violence that cannot be predicted by projecting relationships between current climate and violence into the future . If global levels of violence increase, there will be increased demand for international efforts, including disaster aid and humanitarian efforts . Climate change and geopolitical goals interact in the Arctic . New transportation corridors and the potential access to natural resources could lead to competition for access to and control over the region . Governance structures exist to manage geopolitical manoeuvring and to protect the human security of Arctic populations .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report