Himalayan Fragility and Unsustainable Development
Kartavya Desk Staff
- •Syllabus: Critical Geographical Features*
Source: TH
Context: Recent floods and landslides in Punjab, Himachal Pradesh, Uttarakhand, and Kashmir have exposed the cost of rampant construction and deforestation in the Himalayas.
• Experts and the Supreme Court have warned that unregulated “development” is pushing the fragile mountains to the brink of collapse.
About Himalayan Fragility and Unsustainable Development:
What are the Himalayas?
• The Himalayas are the youngest and highest fold mountains in the world.
• They stretch for about 2,400 km across India, Nepal, Bhutan, China, and Pakistan.
• Average width: 150–400 km; Average elevation: 6,000 m+.
• They form the northern boundary of the Indian subcontinent and act as a climatic, cultural, and ecological divide.
• Home to the world’s highest peaks including Mount Everest (8,849 m) and Kanchenjunga (8,586 m).
Formation of the Himalayas:
• Ancient Landmasses: Around 200 million years ago, the supercontinent Pangaea broke up. Two major landmasses relevant to the Himalayas: Laurasia (north) – included Eurasia. Gondwana (south) – included India, Africa, Australia, etc.
• Around 200 million years ago, the supercontinent Pangaea broke up.
• Two major landmasses relevant to the Himalayas: Laurasia (north) – included Eurasia. Gondwana (south) – included India, Africa, Australia, etc.
• Laurasia (north) – included Eurasia.
• Gondwana (south) – included India, Africa, Australia, etc.
• Tethys Sea: Between Laurasia and Gondwana lay a shallow sea called the Tethys Sea. Over millions of years, sediments from rivers accumulated in this sea bed.
• Between Laurasia and Gondwana lay a shallow sea called the Tethys Sea.
• Over millions of years, sediments from rivers accumulated in this sea bed.
• Indian Plate Movement: About 140 million years ago, the Indian Plate broke away from Gondwana. It drifted northwards at a fast rate (~15 cm/year).
• About 140 million years ago, the Indian Plate broke away from Gondwana.
• It drifted northwards at a fast rate (~15 cm/year).
• Collision with Eurasian Plate: Around 50 million years ago, the Indian Plate collided with the Eurasian Plate. The sediments of the Tethys Sea were compressed and uplifted due to plate convergence.
• Around 50 million years ago, the Indian Plate collided with the Eurasian Plate.
• The sediments of the Tethys Sea were compressed and uplifted due to plate convergence.
• Orogeny (Mountain Building): The collision gave rise to fold mountains – the Himalayas. The process is still active: the Himalayas are rising by ~5 mm per year due to ongoing plate movement.
• The collision gave rise to fold mountains – the Himalayas.
• The process is still active: the Himalayas are rising by ~5 mm per year due to ongoing plate movement.
Himalayan Fragility:
• Young Mountains – Himalayas are geologically young and unstable, making them naturally prone to landslides and seismic activity.
• Climate Sensitivity – Warming rates are higher than global averages, leading to glacier melt and erratic rainfall patterns.
• High-Energy Environment – Steep slopes and fast-flowing rivers amplify disaster risks like floods and soil erosion.
• Glacial Lakes – Over 25,000 glacial lakes increase risks of sudden glacial lake outburst floods (GLOFs).
• Biodiversity Hotspot – Home to unique species and ecosystems, their destruction undermines both ecology and livelihoods.
Drivers of Himalayan Degradation:
• Unregulated Infrastructure – Highways, tunnels, and hydro projects destabilise slopes using heavy blasting and excavation.
• Deforestation – Native trees like deodar, which bind the soil, are cleared for tourism and urban expansion.
• Hydropower Expansion – Excessive damming alters river courses and increases disaster potential.
• Weak Impact Assessments – Environmental Impact Assessments (EIA) are often bypassed or diluted for quick approvals.
• Tourism Pressure – Surging demand for hotels and roads strains land resources and accelerates ecological erosion.
Consequences of Unsustainable Development:
• Human Loss – Disasters like Kedarnath 2013 and Chamoli 2021 cause large-scale deaths and displacement.
• Ecological Damage – Soil erosion, biodiversity loss, and degradation of forests worsen long-term resilience.
• Disaster Multiplication – Development without safeguards converts heavy rainfall into catastrophic floods and landslides.
• Economic Setbacks – Infrastructure collapses, farms destroyed, and tourism disrupted reduce state revenues.
• Social Stress – Communities lose trust in governance when projects endanger lives without consultation.
Way Ahead:
• Mountain-Specific Policies – Draft distinct development models considering carrying capacity of fragile zones.
• Strengthen EIAs – Ensure strict, independent ecological and disaster impact assessments before approvals.
• Promote Nature-Based Solutions – Afforestation, slope stabilisation, and watershed management can reduce risks.
• Community-Led Development – Build climate literacy, eco-tourism, and empower local governance for resilience.
• Sustainable Energy Mix – Shift focus from hydropower dominance to solar, wind, and decentralised energy.
Conclusion:
The Himalayas are at a tipping point where reckless development is colliding with climate change. Sustainable models that respect ecology, empower communities, and balance growth are essential. Only then can these “living mountains” remain resilient for future generations.