Define global warming, and differentiate it clearly from climate change. Explain the key natural and human-induced causes of global warming and briefly discuss which factors are currently dominant in driving global temperature rise.
In short
Global warming is the long-term rise in Earth's average surface temperature from greenhouse gases, while climate change is the broader shift in rainfall, storms and sea levels that includes it. Natural factors like volcanoes and El Nino cause short-term swings, but human emissions, chiefly CO2, dominate today.
Model answer
Ghissu Editorial · Verified 4 Oct 2026 · 320 words
Global Warming Explained
It refers to the long-term increase in surface temperature caused by GHGs such as CO₂, methane, and nitrous oxide; Mauna Loa Observatory data shows CO₂ levels rising from 280 ppm pre-Industrial Revolution to over 400 ppm today, correlating with a ~1.1°C rise over pre-industrial levels.
Climate Change Scope
Climate change encompasses global warming plus changes in precipitation, storms, and sea levels; Andhra Pradesh experiences erratic monsoons and increased cyclones as part of this broader phenomenon.
Natural Causes
Volcanic eruptions, solar variations, and oceanic cycles like El Niño cause short-term temperature fluctuations but cannot explain sustained warming.
Human-Induced Causes
Fossil fuel combustion, deforestation, and industrial emissions, notably in Visakhapatnam and other Andhra Pradesh industrial hubs, are the main drivers; deforestation reduces carbon sinks, worsening warming.
Dominant Drivers
IPCC confirms human GHG emissions, especially CO₂ from energy and land-use changes, dominate current warming trends.
Renewable Energy and Afforestation
Scaling solar and wind energy per the National Action Plan on Climate Change1 and promoting afforestation in Andhra Pradesh can mitigate emissions.
Climate-Resilient Agriculture
Developing drought-resistant crops for Rayalaseema and enhancing early warning systems for heatwaves and cyclones are crucial.
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