Climate-induced Disasters — Revision Notes
⚡ 30-Second Revision
- Definition: — Extreme weather/climate events intensified by human-induced climate change.
- Key Types: — Cyclones, Floods, Droughts, Heatwaves, Sea-level Rise, Cloudbursts.
- Driver: — Anthropogenic GHG emissions leading to global warming.
- Indian Framework: — National Disaster Management Act, 2005 (NDMA, NDRF, SDRF).
- Global Framework: — Sendai Framework for DRR (2015-2030).
- IPCC: — Scientific body confirming human role in increasing disaster frequency/intensity.
- Vulnerability (India): — High population, agrarian economy, diverse geography, socio-economic disparities.
- Vyyuha Mnemonic: — CLIMATE-D for classification and management.
- Recent: — COP28 Loss & Damage Fund, updated NDMP, record heatwaves (2024).
2-Minute Revision
Climate-induced disasters are extreme weather and climate events whose severity and frequency are amplified by human-driven climate change. Unlike traditional natural disasters, these bear the clear imprint of global warming, primarily from greenhouse gas emissions.
Key manifestations include more intense tropical cyclones (e.g., Cyclone Amphan), severe floods (e.g., Kerala Floods 2018) due to erratic monsoon patterns , prolonged droughts (e.g., Maharashtra), and unprecedented heatwaves (e.
g., Delhi). India is highly vulnerable due to its geography, population density, and agrarian economy. The National Disaster Management Act, 2005, provides the legal backbone for India's disaster management institutional framework , while the Sendai Framework for DRR guides global efforts.
Vyyuha's analysis highlights the critical feedback loops between climate change and disasters, and the specific socio-economic vulnerabilities in India. Effective management requires a shift from reactive relief to proactive mitigation, adaptation, and robust early warning systems, integrating climate action with disaster risk reduction strategies.
5-Minute Revision
Climate-induced disasters are a defining challenge of the Anthropocene, representing extreme weather and climate events whose characteristics (frequency, intensity, duration) are significantly altered by human-induced climate change.
This distinction from purely natural disasters is crucial. The scientific consensus, articulated by IPCC reports, unequivocally links rising global temperatures to these intensified events, such as more powerful tropical cyclones fueled by warmer sea surface temperatures, extreme rainfall leading to floods, prolonged droughts due to altered precipitation, and more frequent and intense heatwaves.
Slow-onset disasters like sea-level rise also pose long-term threats.
India, with its diverse physiography and socio-economic landscape, is exceptionally vulnerable. Its coasts face cyclones and sea-level rise, river basins are prone to monsoon-induced flooding patterns , and agricultural heartlands suffer from droughts.
Rapid urbanization further exacerbates risks, creating urban heat island vulnerability and overwhelming drainage systems. The National Disaster Management Act, 2005, provides India's legal and institutional framework, establishing bodies like NDMA and NDRF, shifting the focus from relief to a holistic cycle of prevention, mitigation, preparedness, response, and recovery.
Globally, the Sendai Framework for Disaster Risk Reduction (2015-2030) guides these efforts, emphasizing understanding risk, strengthening governance, investing in DRR, and enhancing preparedness.
Vyyuha's analysis stresses the importance of recognizing feedback loops where disasters themselves can accelerate climate change (e.g., wildfires releasing carbon). Socio-economic disparities in India mean marginalized communities bear a disproportionate burden.
Challenges include implementation gaps, funding, inter-agency coordination, and ensuring last-mile connectivity for early warnings. Recent developments like the COP28 Loss and Damage Fund and India's updated NDMP reflect evolving policy responses.
For UPSC, it's vital to connect this topic to climate change adaptation strategies , urban planning challenges , agricultural drought impacts , and environmental governance , demonstrating an integrated understanding of this complex, interdisciplinary issue.
Prelims Revision Notes
- Definition & Distinction: — Climate-induced disasters are extreme events (cyclones, floods, droughts, heatwaves) whose characteristics are amplified by anthropogenic climate change. Not merely 'natural' but human-exacerbated.
- Key Drivers: — Global warming from GHG emissions (CO2, Methane, N2O). Warmer oceans (cyclone intensity), warmer atmosphere (more moisture, intense rainfall), altered jet streams.
- Types & Examples (India):
* Cyclones: Bay of Bengal (Amphan, Fani), Arabian Sea (Tauktae). Increased intensity due to warmer SSTs. * Floods: Kerala (2018), Assam, Bihar. Linked to extreme monsoon rainfall, dam management.
Monsoon System . * Droughts: Maharashtra, Bundelkhand, Rajasthan. Erratic monsoon, increased evaporation. Agricultural Geography . * Heatwaves: Delhi, Rajasthan, UP. Increased frequency/duration due to rising baseline temperatures.
Urban Heat Island vulnerability . * Slow-onset: Sea-level rise (coastal erosion, saltwater intrusion), glacial melt (GLOFs).
- Institutional Framework (India):
* NDMA Act, 2005: Apex body (PM as Chair), SDMAs (CM as Chair), DDMAs. Holistic approach (prevention, mitigation, preparedness, response, recovery). * NDRF: Specialized response force. SDRF: State-level counterpart. * IMD: Issues warnings for cyclones, heatwaves, heavy rainfall.
- International Frameworks:
* Sendai Framework for DRR (2015-2030): Global blueprint for reducing disaster risk. 4 Priorities, 7 Targets. * Paris Agreement: Climate change mitigation & adaptation. Loss & Damage Fund (COP28).
- Key Concepts: — DRR, EWS, Climate Resilience, Adaptation, Mitigation, Compound Disasters, Urban Heat Island, Loss and Damage.
- Vyyuha Quick Recall: — CLIMATE-D mnemonic for comprehensive understanding.
Mains Revision Notes
- Climate-Disaster Nexus: — Emphasize the shift from 'natural' to 'climate-induced' disasters. Analyze how climate change (IPCC reports) acts as a threat multiplier, increasing frequency, intensity, and unpredictability. Discuss feedback loops (e.g., wildfires -> carbon emissions -> warming).
- Vulnerability Profile of India: — Analyze India's multi-faceted vulnerability: geographical exposure (coastal, Himalayan, plains), high population density, agrarian economy, socio-economic disparities, and infrastructure deficits. Provide specific regional examples for each vulnerability.
- Disaster Management Framework (India): — Critically evaluate the NDMA Act, 2005, and NDMP 2016. Discuss strengths (institutionalization, proactive shift) and weaknesses (implementation gaps, funding, coordination, last-mile connectivity). Highlight the role of NDRF/SDRF and community-based approaches.
- Comprehensive Strategies for Resilience:
* Mitigation: Transition to renewables, energy efficiency, afforestation (carbon sinks). * Adaptation: Climate-smart agriculture (drought-resistant crops), water resource management, resilient infrastructure, early warning systems, nature-based solutions (mangroves, wetlands).
* DRR: Risk assessment, land-use planning, urban planning challenges , 'Build Back Better' principles. * Governance: Multi-stakeholder approach, inter-agency coordination, climate finance, aligning with Sendai Framework and SDGs, environmental governance .
- Emerging Issues & Vyyuha Analysis: — Focus on urban heat islands, compound disasters, climate migration, and the significance of the Loss and Damage Fund. Analyze how these issues disproportionately affect vulnerable populations and require integrated policy responses. Connect to Urban Geography and Agricultural Geography .
- Case Studies: — Use specific Indian (Amphan, Kerala floods, Delhi heatwaves) and global (Hurricane Katrina, Australian bushfires) examples to illustrate causes, impacts, and management responses. This adds depth and credibility to answers.
Vyyuha Quick Recall
Vyyuha Quick Recall: Remember 'CLIMATE-D' for Climate-Induced Disasters – its types and management:
C - Cyclones & Cloudbursts: Intense storms, heavy rain. L - Loss & Damage: Unavoidable impacts, global fund. I - Intensity & Increase: Frequency and severity are rising.
M - Mitigation & Management: Reduce emissions, NDMA Act. A - Adaptation & Agriculture: Climate-smart farming, resilience. T - Temperatures (Heatwaves) & Threats (Sea-level rise): Rising heat, coastal risks.
E - Early Warning Systems & Examples: Timely alerts, Amphan, Kerala Floods. D - Droughts & Displacement: Water scarcity, climate migration.