Class-3 Geoengineering, Solar radiation Management, Greenhouse gas removal technology for UPSC
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- เผยแพร่เมื่อ 11 พ.ย. 2024
- Welcome to our dedicated series on Current Affairs in Environment, Ecology, and Biodiversity, crafted for UPSC and State PCS examination aspirants. This vide the innovative and controversial topic of geoengineering as a solution to climate change. Dive deep into the science, techniques, and debates surrounding this cutting-edge field, essential for your exam preparation.
Topics Covered in This Video:
Introduction to Geoengineering:
Definition by the Oxford Geoengineering Programme: "the deliberate large-scale intervention in the Earth’s natural systems to counteract climate change."
Overview of geoengineering technologies including Solar Radiation Management (SRM) and Greenhouse Gas Removal (GGR).
Solar Radiation Management (SRM) Techniques:
Albedo Enhancement: Increasing the reflectiveness of clouds or the land surface.
Albedo of different surfaces, from fresh snow to dark asphalt.
Space Reflectors: Blocking a small proportion of sunlight before it reaches Earth.
Stratospheric Aerosols: Introducing small, reflective particles into the upper atmosphere.
Example: Supercooled ternary solutions of sulfuric acid, nitric acid, and water.
Prelims 2019 Question Analysis: Discussing the use of cirrus cloud thinning and sulfate aerosol injection to reduce global warming.
Greenhouse Gas Removal (GGR) Techniques:
Afforestation: Global-scale tree planting efforts.
Biochar: Charring biomass and burying it to sequester carbon.
Impact: 1 tonne of biochar = 3 tonnes of CO2 sequestered.
Ambient Air Capture: Machines that remove CO2 directly from ambient air.
Ocean Fertilization: Adding nutrients to the ocean to increase primary production.
Environmental justice and technical issues.
Enhanced Weathering: Using minerals to react with CO2 and storing the resulting compound.
Proposals to dissolve silicate minerals on land or in the sea.
Microbubbles: Generating millions of tiny air bubbles in the ocean to reflect more sunlight.
Why This Video is Important:
Relevance to Exams: Aligns with the UPSC and State PCS syllabus, covering critical topics in detail.
In-depth Analysis: Provides a thorough understanding of geoengineering concepts and their implications.
Current and Relevant: Keeps you updated with the latest scientific advancements and debates.
Additional Resources:
PDF Notes: Download comprehensive notes to reinforce your learning.
Practice Questions: Test your knowledge with exam-oriented practice questions.
Discussion Forum: Engage with a community of aspirants to discuss and clarify doubts.
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#GreenhouseGasRemoval
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Excellent 👍
exellent
Commendable 😊
Excellent lecture sir 😊 thank you
super knowledge
thanku sir🙏🏻🙏🏻
supperb
Thankyou sir
🎉🎉
Excellent Sir 🙏👍
Compound used for Artificial Rain - Silver Iodide and Potassium Iodide
🎉🎉