Climate-Vulnerable Districts in India: Children 25% More Likely to Be Underweight, Study Reveals

Children in climate-vulnerable districts of India face a 25% higher likelihood of being underweight compared to those in less vulnerable districts, highlighting the significant impact of climate change on child nutrition and maternal health outcomes, according to a recent comprehensive study published in PLOS One. The study analyzed data from over 150,000 children and nearly 450,000 women, demonstrating that districts highly exposed to climate risks such as floods, heatwaves, and cyclones consistently show poorer health indicators including stunting, wasting, and non-institutional births. Along with enhanced risks of malnutrition, these districts also report greater difficulties in accessing healthcare services, underlining a climate-health burden that threatens India’s progress toward Sustainable Development Goals (SDGs).​

Key Findings on Climate Vulnerability and Health Outcomes

The study revealed that children in highly climate-vulnerable districts are 25% more likely to be underweight, 14% more likely to experience stunting, and 6% more likely to suffer wasting than children in less vulnerable districts. Further, women in these districts have a 38% higher chance of giving birth outside healthcare facilities, elevating risks for both maternal and newborn health. The researchers used a multivariate logistic regression model controlling for socio-economic variables such as maternal education and access to antenatal care, affirming that climate vulnerability independently worsens health outcomes. In addition to child malnutrition, access to healthcare is significantly impaired, with 46% of respondents citing non-availability of essential drugs as a severe problem in the most affected districts.​

Expert Commentary and Context

Experts not involved in the study note that these findings align with broader evidence on how climate extremes compound existing vulnerabilities in low- and middle-income countries. Dr. Gita Chowdhry, a public health specialist, states that “climate shocks disrupt food security and healthcare access, exacerbating inequalities in child nutrition and maternal care.” The study emphasizes that while socio-economic factors remain critical, climate exposure must be explicitly factored into public health planning to meet targets such as SDG 2 (Zero Hunger) and SDG 3 (Good Health and Well-being). The analysis covers 575 rural districts, representing about 80% of India’s population living in climate-sensitive areas, underscoring the scale of this public health challenge.

Implications for Public Health and Policy

This research urges urgent climate adaptation measures integrated within health systems, particularly in rural and vulnerable regions. Such adaptations include climate-resilient healthcare infrastructure, improved supply chains for medicines, community-driven climate adaptation programs, and enhanced health surveillance for climate-sensitive conditions. Tailored district-level strategies are needed to address these disparate vulnerabilities and maintain progress toward health-related SDGs. The study also highlights the importance of maternal education and prenatal care, which mitigate some adverse outcomes but cannot fully offset the detrimental effects of climate risks.​

Limitations and Balanced Perspective

Despite its robust methodology and large sample size, the study is based on cross-sectional data, limiting causal inference. Longitudinal cohort studies would strengthen understanding of the chronic impacts of climate vulnerability on health outcomes. Also, while the association with climate vulnerability is clear, the heterogeneity within districts suggests that local factors such as governance, nutrition programs, and health access influence the degree of impact. Hence, climate vulnerability should be considered alongside socio-economic determinants for a comprehensive approach to public health planning in India.​

Medical Disclaimer: This article is for informational purposes only and should not be considered medical advice. Always consult with qualified healthcare professionals before making any health-related decisions or changes to your treatment plan. The information presented here is based on current research and expert opinions, which may evolve as new evidence emerges.

References:

• Dasgupta P, Sharma G, Joe W, Chowdhuri M, G G. Health SDGs are at risk from climate change: Evidence from India. PLoS One. 2025 Nov 26;20(11):e0335529. https://doi.org/10.1371/journal.pone.0335529