Recurrent extreme events in the Himalayan region strengthen the case for ambitious mitigation. Discuss with reference to the need for regional climate cooperation in South Asia.

The Hindu Kush Himalaya (HKH) supplies water and ecosystems to nearly 2 billion people, and it is warming faster than the global average [1]. Glacial floods, cloudbursts and flash floods keep recurring across the region. They show that adaptation alone cannot keep pace, and that deep mitigation must go together with regional cooperation.

Extreme events strengthen the case for mitigation

• Faster ice loss: HKH glaciers disappeared 65% faster in 2011–20 than in the previous decade. On current emissions they could lose up to 80% of their volume by 2100 [1].
• Chain-reaction disasters: The South Lhonak glacial lake outburst flood (October 2023) sent a 50–60 ft surge down the Teesta and overtopped the Teesta-V dam [2]. Nepal's August 2026 floods have added momentum for mitigation ahead of COP31 [3].
• Limits of adaptation: Damage to hydropower, highways and livelihoods grows faster than protective works can be built. Only holding warming near 1.5°C tackles the root cause.
• Ambition gap: Governments plan to produce more than double the fossil fuels in 2030 that 1.5°C allows, and coal is about 500% over [4]. The Himalaya's risk is therefore tied to global production choices.

Need for regional cooperation in South Asia

• Shared hazards: Glacial lakes and rivers cross borders (Nepal–India, Bhutan–India, India–Bangladesh). Timely early warning depends on data from upstream neighbours.
• Existing platform: ICIMOD, an eight-nation body, already produces joint assessments [1]. It can anchor a regional early-warning network for glacial floods and river floods.
• Clean-energy integration: Cross-border trade in hydropower and renewables can reduce the region's dependence on coal, which is regional mitigation in practice.
• Collective bargaining: COP30 pushed the tripling of adaptation finance back to 2035 [5]. A common South Asian mountain agenda at COP31, built with vulnerable Pacific states at the Fiji pre-COP [3], can press for finance and loss-and-damage support.
• Hurdles: Political mistrust, a dormant SAARC and reluctance to share river data slow progress. These call for technical, depoliticised cooperation.

Himalayan disasters show that local vulnerability is driven by global emissions. Mitigation at the source and cooperation within the region must therefore advance together, through shared early warning, connected clean-energy grids and a joint negotiating position. Guided by CBDR-RC (common but differentiated responsibilities and respective capabilities) and SDG 13, South Asia can turn a shared risk into shared resilience.