UN report: Half of world's largest cities face water crisis, with Delhi ranking fourth

A UN report reveals half of the world's 100 largest cities face severe water shortages, with Delhi ranking fourth globally. The report highlights 39 cities in critical condition, including Beijing and New York. Many Indian cities like Kolkata, Mumbai, Bengaluru, and Chennai are also significantly impacted by dwindling water resources. Global water bodies are shrinking, groundwater levels are falling, and land subsidence is occurring, affecting billions worldwide.