Climate change also could increase income inequality between countries  as well as within them  resulting from and exacerbating impacts on aggregate economic activity, poverty and livelihoods. Increasing inequality implies larger impacts on the least well-off, threatens their ability to respond to climate hazards, compromises basic principles of fairness and established global development goals, and potentially threatens the functioning of society and long-term progress . There is evidence that warming has slowed down the convergence in between- country income in recent decades . Future impacts may halt or even reverse this trend during this century owing to high sensitivity of developing economies , although projections depend as much or more on future socioeconomic development pathways and mitigation policies as on warming levels . Within countries, studies that find adverse impacts on low-income groups imply an increase in inequality , although evidence for long-term climate impacts on within-country inequality at global scale remains limited.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report