Chinas Medog Dam a Water Bomb Threat to India and Bangladesh

China’s intensive dam-building and resource extraction across the plateau since the 1990s thus poses a growing risk to Asian water security, ecological stability and regional peace. Control over the headwaters of key transboundary rivers confers immense leverage, turning water into a potential geopolitical tool and raising the specter of environmental disaster and conflict.

The Brahmaputra super-dam thus raises profound questions about regional stability. It epitomizes China’s strategy of “hydro-hegemony” — using upstream control of water to exercise geopolitical influence.

For the past two decades, work across a range of fields, but particularly geography, has engaged ‘critical hydropolitics’ as a way to highlight not only the politics inherent in decisions about water, but also the foundational assumptions of more conventional hydropolitical analyses that tend to focus on conflicts and cooperation over water resources, with a heavy emphasis on ‘the state’ as the key actor and scale of analysis. In this article we review critical hydropolitical literature that focuses on transboundary rivers that descend from the eastern Tibetan Plateau, namely the Lancang-Mekong, Yarlung Tsangpo-Brahmaputra and Nu-Salween river basins.

The Brahmaputra–Yarlung Tsangpo confrontation crystallises ‘hydro-digital geopolitics’, where control of water mirrors control of information. For Beijing, the dam secures technological supremacy and firmer control in Tibet. For Delhi, it symbolises sovereignty and deterrence. Both powers seek strategic autonomy as energy and data merge into a single system of power, yet risk ecological damage, regional instability and potential conflict.

Drawing on this development and empirical evidence from the transboundary river disputes, the paper argues that the current trajectory of unilateral dam construction represents an institutionally deficient approach to transboundary water governance, necessitating urgent trilateral cooperation mechanisms to prevent the transformation of shared water resources into instruments of geopolitical contestation. ... 1. Barlow, M. (2017, March 23). Water: Commons or commodity? The Council of Canadians. Available at https://canadians.org/analysis/water-commons-or-commodity/ (accessed on September 18, 2025). [Google Scholar] [Crossref] 2. Bhaya, A. G. (2025). China's mega-dam on Yarlung Zangbo: A global game-changer in clean energy and regional cooperation.

Yarlung Tsangpo–Brahmaputra system have already contributed to downstream disasters and diplomatic · tensions. Rather than enhancing water security, this competitive and unilateral approach exacerbates uncertainty · over future water availability, heightens ecological vulnerability, and entrenches political mistrust. Hydropower · development along transboundary rivers has thus evolved into a zero-sum contest with destabilising

Although detailed public information on the project remains limited, in February this year, Indian Minister of State for External Affairs Kirti Vardhan Singh stated in a Rajya Sabha session that the Indian government had taken note of China’s approval of a major dam project on the lower reaches of the Yarlung Zangbo River in the Tibet Autonomous Region. He affirmed that, based on considerations of national interest, India has maintained close communication with China. Indeed, as Minister Singh pointed out, a mature framework for communication has already been established between China and India on transboundary water issues.

A transboundary super dam proposed for occupied Tibet, near its border with India, poses significant concerns and risks. A report by Chinese geologist Fan Xiao delves into the infeasibility of the massive development, revealing it isn’t even needed. As part of China’s long-range objectives to create a modern energy system, the country’s hydropower lobbyists have their sights set on the Great Bend of the Yarlung Tsangpo, the fifth longest river in China and the largest river in Tibet Autonomous Region.

The Yarlung Zangbo dam project represents a watershed moment in China’s emergence as a hydro-hegemon capable of manipulating water flows across multiple international boundaries for its own strategic advantage. While Beijing frames the initiative as part of its renewable energy transition and Tibet development plan, the project’s location, scale, and timing reveal concerning and calculated geopolitical motivations that extend well beyond energy security considerations alone.