In AR5, conflict was addressed in WGII Chapter 12 on human security. The chapter concluded that some of the factors that increase the risk of violent conflict within states are sensitive to climate change , that people living in places affected by violent conflict are particularly vulnerable to climate change  and that climate change will lead to new challenges to states and will increasingly shape both conditions of security and national security policies . AR5 characterised a major debate within the field as: authors supporting an association between climate anomalies and conflict that can be extrapolated into the future ; Hsiang and Marshall ; Burke et al. ) and authors arguing that these associations are not universal and break down when contextual, scale and political factors are introduced ; Buhaug ).
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report