The resilience of Kolkata’s aging drainage systems is under intense scrutiny as the city grapples with the escalating repercussions of climate change. Increasing rainfall intensity, driven by climate variability, exacerbates existing vulnerabilities. The city’s drainage infrastructure, often over a century old, is ill-equipped to handle heavy downpours, leading to widespread flooding and waterlogging. As climate projections indicate a rise in annual monsoon precipitation, the impact on urban flood management systems is profound, with significant implications for public safety and health.

In addition to flooding, the compromised drainage systems contribute to water contamination and vector-borne diseases. Stagnant water serves as a breeding ground for mosquitoes, increasing the prevalence of malaria and dengue fever among residents. Furthermore, the dilapidated state of these infrastructures complicates waste management, leading to blockages and sewage overflow that jeopardize the city’s water quality. As climate patterns become more unpredictable, the necessity for comprehensive upgrades and the implementation of climate-resilient infrastructure is critical to safeguard the well-being of Kolkata’s residents.