impoverished, undernourished, struggle with chronic or repeated illnesses, live in insecure housing in polluted or heavily degraded environments, work in unsafe conditions, are disabled, have limited education and/or have poor access to health and social infrastructure . Their disproportionate exposure to ongoing climate hazards and their inability to recover from extreme events increase not only their own vulnerability but also that of the wider communities in which they live . Highly vulnerable populations are not evenly distributed across regions  nor within countries. Yet, even those fortunate enough to live in better neighbourhoods with greater financial means, higher-paying jobs and good access to resources and services, may experience adverse climate-related outcomes through community-level interactions and linkages . Increased inequity itself threatens well-being and an effective response to climate change should not only avoid increased inequity but identify ways in which to reduce existing inequity.
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report