One popular thesis:
Environmental degradation driven by the climate crisis systemically worsens living standards, thereby heightening socioeconomic and political tensions. These tensions often ignite armed conflicts, forcing populations to migrate and creating environmental refugees. The mass migration stems from both the decline of ecosystems and conflicts intensified by resource shortages. As a result, the climate crisis inflicts extensive and lasting damage on ecosystems and human communities, aligning with the definition of ecocide. Recognizing this causal chain highlights the necessity for global governance to address the ecological and humanitarian impacts of climate-induced conflicts.
(accessed online at https://doi.org/10.1177/00323217251382404)
One admittedly incomplete review of the literature:
We draw three initial conclusions from [our review of the literature]. First, across the five environmental issues surveyed, the evidence on the contribution of environmental variables to violent political conflict is thin, weak, uncertain, and/or contradictory. Notwithstanding headline claims about climate being “a risk factor for conflict,” for instance, the consensus view of even the mainstream scholars who reached this verdict is that climate is a relatively low risk factor for conflict (evaluated as fourteenth out of 16 factors considered), is particularly uncertain (evaluated as the most uncertain of 16 factors), and is a factor over which there is “low confidence” in the mechanisms through which
climate affects conflict. . .Second, scarcity accounts of environmental conflict, which focus on the security impacts of natural resource availability shortages, are particularly unconvincing, there being much stronger evidence on the conflict effects of relative resource abundance, as argued in “resource curse” or “honey pot” . . .interpretations of environmental conflict, and discussed further in the next section. And third, although the body of evidence on climatic variables and conflict is much more extensive than on the other environmental issues considered here, dominating climate–security research, it is no less uneven. Indeed, our assessment is that the evidence is most robust on water and forests, through resource curse dynamics; that it is most extensive but also mixed on climatic variables; and that it is thinnest in relation to biodiversity and pollution.(accessed online at https://www.annualreviews.org/docserver/fulltext/energy/49/1/annurev-environ-112922-114232.pdf?expires=1770499611&id=id&accname=guest&checksum=C4CF5A6FB183C2A3D71433B9DE1662700
Moral: All broad narratives, including those for the climate emergency, come with more granular counternarratives. Does one negate or cancel the other? No, but it does force new questions, e.g. in this case: What local injustices would the earmarked global justice produce?