Lesson 5.4: Environment & Ecology – Climate Change, Renewable Energy, Conservation
Environment and ecology are crucial for UPSC, covering climate change, renewable energy, and conservation of natural resources.
Climate Change:
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Definition: Long-term alteration of temperature and weather patterns.
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Causes: Greenhouse gas emissions (CO₂, methane), deforestation, industrialization.
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Impacts: Rising sea levels, extreme weather events, biodiversity loss.
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Global Initiatives: Paris Agreement, Kyoto Protocol, COP Summits.
Renewable Energy:
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Sources: Solar, Wind, Hydro, Biomass, Geothermal.
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Government Initiatives in India:
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National Solar Mission
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Wind Energy Development Programs
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Promoting bioenergy and hydropower projects
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Benefits: Reduces carbon footprint, sustainable energy, energy security.
Conservation:
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Biodiversity Conservation: Wildlife sanctuaries, national parks, protected species.
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Water Conservation: Rainwater harvesting, watershed management.
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Forest Conservation: Afforestation, forest management, community participation.
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Pollution Control: Air, water, soil pollution mitigation, Swachh Bharat initiatives.
Key Points for Revision:
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Causes and effects of climate change
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Renewable energy sources and government schemes
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Conservation methods for biodiversity, water, and forests
Example Question (Prelims Practice):
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“Which international agreement aims to limit global warming?” → Paris Agreement
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“Which energy source is considered renewable and clean?” → Solar Energy
