Question 17GS1GS1

ऊष्मीय स्तर पर हीट वेव की बढ़ती आवृत्ति और तीव्रता के लिए कौन-से कारण उत्तरदायी हैं? इसका खाद्य सुरक्षा पर क्या प्रभाव पड़ेगा? (उत्तर 250 शब्दों में दीजिए) What are the reasons behind the increased frequency and intensity of heat waves globally? How will it impact global food security? (Answer in 250 words)

Introduction

Heat waves, as per IND, is a phenomenon of rising temperature above 40°for plain area and 30°for hilly area.

19 words

Main Body

Reasons behind increasing frequency and intensity of heat waves - (1) Global warming: due to rise in green hone gases, global temperature is increasing. As per IUCN, rise of 0.7°C from pre-industrial level. (2) Vehicular Emission: increase pollution and thus increase temperature.

3Snow Melting: due to rise of temperature, Arctic Amplification as arctic is melting two times faster. (4) Deforestation: reducing oxygen and increasing CO2, b reduced main-attracting capacity, due to promotion of mono-cultiva and urbanisation. (5) Rapid urbanisation: Concentration urban heat islands, encroachment of waste body. Impact on food productivity and security - A) Decrease in food productivity as climate-prone vegetation. [eg wheat productivity will be lost by 33% by 2050]. B) More food spoilage: As favourable temperature for microorganism. C) Erratic Rainfall: Impad agriculture [eg 60% of India's agriculture is rain-fed]. D) Food Inequality: only rich population will have accseie. E) Malnutrition and food insecurity due to lack of avordalpe food.

Government steps - National level → deep irrigation, sprinkles → use of minimum fertilize. → National Mission for sustainable agriculture → choose resilient crops with mulch. International level → collaboration to reduce global temperature (COP-26 of UNFCC) → Supply chain resilience initiative.

— Mansi Singh · AIR 126

196 words1 paragraphs

Conclusion

Recommendation of N.S Susmilnothmore would help in achieving sustainable food security for India.

13 words

Diagram

Visual showing incidence of heat waves with map showing global distribution and temperature variations

Provides quantitative definition of heat waves
Differentiates between plain and hilly areas
References international data (IUCN)
Specific temperature increase figure cited

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Topper

Mansi Singh

AIR 126

Subject & Paper

GS1GS1

Topic

Important Geophysical Phenomena - Climate Change

Heat Waves and Climate Change

Causes of Increased Heat Waves and Food Security Impact

Writing Stats

228

Total words

Paragraphs

Linked PYQ

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50M2013प्रतिपाद्यताम्