The recent floods in Nepal have sparked concern in India, but it's not just about the water flowing downstream. The relationship between these two countries is complex and multifaceted, with a shared responsibility for managing the volatile Himalayan river system. With over 6,000 rivers and streams, Nepal's drainage into India and the Ganges is a critical issue. The Kosi, Gandaki, Karnali, and Mahakali rivers are among the major systems, with smaller rivers like the Bagmati, Kamala, Rapti, and Babai also contributing to flooding in India. Bihar is the most exposed state, with three-quarters of its north officially classified as flood-prone, while Uttar Pradesh and Uttarakhand also face significant risks. The severity of flooding in India is determined by a combination of factors, including rainfall, river levels, embankments, drainage, and development. The 2008 Kosi disaster, for instance, was not caused by an exceptional flood but by the failure of an embankment, highlighting the importance of structural maintenance. Nepal's role is often misunderstood, with the misconception that it 'releases' water into India. However, the reality is that Nepal's rainfall largely determines the timing and size of flood peaks reaching India. The two countries share real-time data, but gaps remain in monitoring and forecasting, particularly for the fastest-flowing Chure catchments. The key to managing this complex system lies in better information sharing, early warning systems, and river management, rather than blame. The real worry for India is the increasing frequency and intensity of extreme events in the Himalayas, such as landslides, sediment in rivers, and the degradation of permafrost, which can lead to faster, debris-laden floods that are harder to forecast. Climate change is exacerbating these issues, with the region warming faster than the global average and the monsoon delivering more rain in fewer, heavier bursts. The Chamoli and Dharali disasters in India are examples of the devastating impact of these events, and the need for improved preparedness and management cannot be overstated. In conclusion, the floods in Nepal serve as a warning for India, but it is a warning that requires a comprehensive and collaborative approach to address the complex challenges of the Himalayan river system.
