The document discusses the degradation of the Cooum River in Chennai, detailing its historical significance, current pollution issues, and the formation of sand dunes that obstruct its flow. It highlights the importance of the Buckingham Canal and its role in mitigating disasters like tsunamis and floods while suggesting methods for cleaning and restoring both waterways, including public cooperation and innovative solutions. The document calls for collective action to rejuvenate the river by 2025.