2012 · Paper V · 10 marksFrequently asked

Explain various causes for the changes in climate and its effect on both the living and non-living bodies on the Earth.

In short

Climate change today is driven mainly by human greenhouse gas emissions from fossil fuels, deforestation and agriculture, alongside natural factors like solar cycles and volcanoes. It harms living bodies through biodiversity loss, crop stress and disease, and non-living bodies through sea-level rise, stronger cyclones, altered rivers and ocean acidification.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
Climate change, propelled by human activities, is reshaping global and Indian climates, impacting ecosystems, agriculture, and human well-being, especially in vulnerable regions like Andhra Pradesh.
Causes of Climate Change
•

Anthropogenic Greenhouse Gas Emissions

Fossil fuel combustion, deforestation, and agriculture raise greenhouse gases; Andhra Pradesh’s aquaculture and Eastern Ghats deforestation notably increase methane and CO2 locally.

•

Land Use Changes and Agriculture

Deforestation in Seshachalam Hills reduces carbon sinks; livestock and chilli cultivation in Andhra Pradesh emit methane and nitrous oxide, intensifying warming.

Effects on Living Bodies
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Biodiversity Loss and Agricultural Stress

Rising temperatures disrupt habitats, threatening species like the Indian pangolin in coastal mangroves; drought in Rayalaseema causes crop failures and pest outbreaks.

•

Human Health and Livelihood Disruption

Heatwaves in Visakhapatnam increase heat-related illnesses; fisheries along Andhra Pradesh’s 974 km coast suffer from ocean warming and acidification.

Effects on Non-Living Bodies
•

Sea-Level Rise and Extreme Weather

Thermal expansion and glacial melt cause sea-level rise, leading to salinity ingress and land loss on Andhra Pradesh’s east coast; cyclones Hudhud and Titli exemplify increased storm intensity.

•

Hydrological Changes and Ocean Warming

Variability in Krishna and Godavari river flows affects irrigation; warming Bay of Bengal waters disrupt marine biodiversity and fisheries.

Way Forward
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Forest Conservation and Carbon Sequestration

Strengthen CAMPA implementation in Andhra Pradesh to enhance forest cover and climate regulation.

•

Climate Resilience Measures

Promote sustainable agriculture and coastal protection to mitigate impacts on livelihoods and ecosystems.

Conclusion
Comprehensive climate action integrating emissions reduction, conservation, and adaptation is vital to safeguard both living and non-living systems on Earth.

This model answer is indicative and the model can make mistakes; please verify key facts independently.

Hand-drawn diagram: From causes to effects. From causes to effects. Flow: Fossil fuels, deforestation, farming → Greenhouse gases rise → Enhanced greenhouse effect → Global warming → Living and non-living systems altered
Diagram: From causes to effects

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Question from the official APPSC Group-I Mains 2012 paper. Answer written by Ghissu's engine and checked against our editorial standards. Found an error? Tell us and we correct it within 48 hours.

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