The escalating climate crisis is straining health systems worldwide, including in India, where extreme heat and air pollution are significant concerns. Vulnerable populations face heightened risks of heat-related illnesses, malnutrition, and vector-borne diseases. The Lancet Countdown 2026 report highlights that climate change exacerbates existing vulnerabilities in health systems, leading to power outages, water sanitation issues, and delayed outbreak responses. Without urgent action, these challenges are expected to worsen, further endangering public health and safety.