Climate Change to Severely Affect Ganges and Brahmaputra River Basins

New Delhi, Mar 19 - A recent study highlights the severe impact of climate change on South Asia's significant river basins, including the Ganges, Indus, and Brahmaputra. The report, titled "Elevating River Basin Governance and Cooperation in the HKH Region," underscores the urgent need for a climate-resilient approach to managing these vital water sources. It points out that the Hindu Kush Himalayas (HKH), which are crucial freshwater sources for South Asia and parts of Southeast Asia, are at risk due to a combination of human activities and changing climate patterns. This situation poses a threat to approximately a billion people in the region.

The Ganges basin, home to over 600 million people, is experiencing environmental degradation due to rapid industrialization, urbanization, and intensive farming practices. The report details how these activities, along with climate change, are leading to increased flooding and droughts, severely impacting water quality and availability. Similarly, the Indus river basin, which supports more than 268 million individuals across four countries, faces challenges from rising temperatures and erratic monsoon patterns that threaten food and water security.

In the Brahmaputra basin, climate change is expected to exacerbate flooding and droughts. The report warns of increased glacial melt rates and potential reductions in dry season flows due to upstream dam construction. These changes will have profound effects on millions of lives, particularly affecting vulnerable groups such as women, people with disabilities, and marginalized communities.

Despite these challenges, governance within these basins remains fragmented. The report calls for more inclusive and resilient approaches to basin governance as existing treaties and agreements near expiration. It emphasizes the importance of regional cooperation and a bottom-up approach involving local communities for effective climate adaptation.

Initiatives like the HKH Call to Action are highlighted as crucial frameworks for fostering trust among basin states and promoting evidence-based decision-making. Programs such as Indus Calling are also praised for empowering communities with information and tools for better water management and resilience building.

The study advocates for long-term strategies that prioritize adaptive infrastructure, flexible governance structures, and inclusive policies to ensure reliable water supply amid climatic uncertainties. It stresses that only through collective efforts can the regions navigate the complexities of climate change and safeguard the livelihoods of millions across South Asia.