Identify the reasons behind increasing number of extreme rainfall events throughout India in recent times. Assess their socio-economic impact. (Answer in 150 words)
Introduction
Recently, Number of extreme rainfall events have increase in India as highlighted by flood in Sikkim due to Johonsk lake.
20 words
Main Body
Global warming (1) -> REASONS -> (2) melting of Snow due to rise in temperature, erratic weather
Rise in Global House Gases (1) -> (3) Heat-dome during vegetation (less water seepage, less water available
House Gases eg methane due to agriculture.
Triple la-Nina (6) from last 3 years when it's causing more rainfall.
Social Impact: (1) Loss of life and property due to flood, situated in Wayanad. Top sugarcane industry in Wayanad. (2) Loss of livelihood as SLY of agriculture in mainland. (3) Poverty and deprivation due to economic losses. Economic Impact: (1) Loss of GDP due to loss of agriculture. (2) High unemployment as 45-48% of youth employed in agriculture. (3) Supply chain disruption: impact agro-based industry. (4) Loss of infrastructure due to extreme rainfall.
Diagram
Tree/flow diagram showing REASONS for extreme rainfall: Global warming branches to snow melting, temperature rise, erratic weather; House Gases branch to heat-dome, agriculture (methane); La-Niña shown as contributing factor
- Identifies multiple causes
- Links climate change to extreme weather
- Mentions greenhouse gases and sources
- References oceanic oscillations (La-Niña)
- Uses recent examples (Sikkim floods)
Mansi Singh
Important Geophysical Phenomena
Extreme weather events and climate change
Rainfall extremes and causes
146
Total words
3
Paragraphs
analytical, structured with causal relationships
Tone