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BPSC MainsGeneral Studies Paper IEnvironment and EcologyPractice question

Global Warming, Agriculture, and Disaster Management Interlinkages

Explain global warming, agriculture, and disaster management.

Explain~250 words2 min readmedium
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How to approach

Begin by defining global warming and explaining the disruption it causes to hydrological and climatic systems. Examine its direct impact on agricultural productivity along with state-level adaptation strategies such as climate-resilient farming in Bihar. Conclude by discussing the interface between climate change and intensified disasters, highlighting proactive disaster risk reduction measures.

Model answer

360 words

Introduction

Global warming refers to the anthropogenic increase in Earth's mean surface temperature driven by greenhouse gas emissions, causing widespread shifts in climatic patterns and exacerbating extreme weather phenomena. This shift directly impacts agrarian livelihoods by altering rainfall patterns and temperatures, while significantly intensifying the frequency and severity of natural disasters. Addressing these interconnected crises requires a multi-pronged strategy that links climate-resilient farming with robust disaster risk governance.

Understanding Global Warming and Climatic Disruptions

Anthropogenic greenhouse gas emissions have destabilized Earth's hydrological and climatic equilibrium. This instability manifests as erratic monsoon patterns, prolonged dry spells, unseasonal precipitation, and localized thermal extremes, fundamentally altering ecosystems and natural resource availability.

Impact of Global Warming on Agriculture

  • Productivity Loss and Crop Stress: Rising ambient temperatures cause terminal heat stress, particularly degrading rabi yields such as wheat. Simultaneously, shifts in precipitation regimes delay and disrupt kharif paddy transplantation.
  • Dual Vulnerabilities in Regions like Bihar: Climate variability exacerbates regional imbalances, leading to chronic riverine flooding in North Bihar alongside recurrent agricultural droughts in South Bihar.
  • Climate-Resilient Adaptation Strategies: The implementation of targeted policies, such as Bihar's 4th Krishi Road Map (2023–2028) and the Climate Resilient Agriculture Programme, prioritizes zero-tillage technology, crop diversification, and drought-tolerant seed varieties.
  • Traditional Ecological Conservation: Initiatives like the Jal-Jeevan-Hariyali Abhiyan restore indigenous water management infrastructure, such as traditional ahar-pyne networks, supporting both soil moisture retention and groundwater recharge.

Disaster Management Interface

  • Intensified Hydrometeorological Hazards: Global warming compounds transboundary riverine flood risks across basins like the Kosi and Gandak, while accelerating localized convective activity that increases fatal lightning strikes in rural zones.
  • Policy Alignment with Global Frameworks: Proactive mitigation is institutionalized through roadmaps like the Bihar Disaster Risk Reduction (DRR) Roadmap (2015–2030), structured in alignment with the international Sendai Framework.
  • Technology-Driven Early Warning: The Bihar State Disaster Management Authority (BSDMA) leverages digital solutions such as the Indravajra mobile app to deliver 40-minute advance warnings for lightning strikes, complemented by decentralized State Disaster Response Force (SDRF) positioning.

Conclusion

A resilient agrarian economy necessitates transitioning from post-disaster reactive relief to pre-emptive, community-centric risk reduction. Integrating climate-smart agricultural techniques with early warning technologies and local water governance forms the bedrock of long-term sustainable development.

Key facts to remember

definition
Global Warming

The long-term heating of Earth's climate system driven primarily by human activities, especially fossil fuel burning, which increases heat-trapping greenhouse gas levels in the atmosphere.

scheme
4th Krishi Road Map (2023–2028)

Bihar's comprehensive agricultural plan focusing on climate-resilient farming, crop diversification, digital agriculture, and sustainable soil and water conservation techniques.

example
Indravajra Early Warning Application

A mobile application developed by the Bihar State Disaster Management Authority (BSDMA) that alerts users up to 40 minutes before potential lightning strikes using geospatial weather data.

Frequently asked questions

How does global warming affect rabi and kharif crops differently?

Rabi crops like wheat are particularly susceptible to terminal heat stress from premature temperature spikes during maturation, whereas kharif crops like paddy suffer primarily from erratic monsoon onset, extended dry spells, and unseasonal rainfall.

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