China accounts for nearly 33 per cent of global greenhouse gas emissions — releasing approximately 13.1 billion tonnes annually — yet its climate-vulnerable neighbours, including Nepal, Bhutan, and Bangladesh, are left to absorb the consequences, according to a report published in The Diplomat. The analysis, released in November 2026, argues that Beijing's self-projection as a clean energy leader, grounded in relatively low emissions relative to GDP, obscures the reality of its rising absolute emissions footprint.

The Upstream Advantage Beijing Holds

The report highlights a structural imbalance at the heart of China's regional climate posture. As Asia's largest emitter and an upstream actor across shared river systems and glacial ecosystems, China reaps the economic rewards of coal-fired power — backed by guaranteed purchase agreements — while the downstream climate risks fall disproportionately on its neighbours. Critics argue that Beijing has done little to mitigate these risks through timely hydrological data-sharing or joint monitoring frameworks.

According to the report, concerns over China's climate responsibility extend well beyond its sheer emissions volume to encompass its dual role as a green technology provider and as a geographically dominant upstream actor shaping shared regional ecosystems.

Glacial Floods and the Asymmetry of Risk

The report cited two recent transboundary glacial flood events as evidence of this asymmetry. In August 2026, a devastating glacial lake outburst flood struck Nepal's Rasuwa district, after which environmental experts identified approximately 25 glacial lakes in China that pose potential risks to Nepal and neighbouring regions. A comparable disaster had occurred just over a year earlier, in July 2025, when a flood outburst originating in China's Gyirong County caused deaths and widespread destruction in Nepal.

'Without commenting on causation, one can note that these hazards are highly asymmetric: risks originate upstream, and casualties are borne downstream,' The Diplomat noted. South Asian nations rank among the most vulnerable globally to climate-induced heatwaves, floods, and sea-level rise — despite contributing a far smaller share of historical global emissions.

China's Resistance to Transparent Climate Cooperation

The report argues that real-time hydrological data-sharing and joint monitoring are not merely technical conveniences but matters of accountability and responsibility. It specifically flagged the potential for China-India collaboration on climate security to enable accurate flood forecasting and shared glacier-melt tracking. However, according to the analysis, China has resisted this form of transparent cooperation, a stance that critics say increases India's vulnerability to floods and water shocks.

Notably, this comes amid broader tensions over data access along shared river systems, including the Brahmaputra, where India has repeatedly sought hydrological data from China during flood seasons with limited success.

The Green Technology Contradiction

The report underscores a contradiction at the centre of China's climate narrative: while Beijing positions itself as a global leader in renewable energy exports and green technology, its domestic coal capacity continues to drive absolute emissions upward. This duality, analysts argue, allows China to claim credit for green technology diffusion while deflecting scrutiny of its overall emissions trajectory — a framing that disadvantages smaller, more vulnerable neighbours who lack the diplomatic leverage to demand accountability.

What This Means for the Region

For countries like Nepal, Bhutan, and Bangladesh — nations with minimal historical emissions but outsized climate exposure — the stakes are existential. Sea-level rise threatens Bangladesh's coastal zones, while glacial instability imperils Nepal's mountain communities. Without binding regional frameworks for data-sharing and joint climate monitoring, these nations remain dependent on the goodwill of an upstream neighbour that has, according to the report, shown little urgency in providing it. The pressure on multilateral forums such as BRICS, SCO, and COP to address this asymmetry is likely to intensify in the months ahead.