UPSC GS–1 | WORLD GEOGRAPHY

1. Jeju Island (South Korea)

Subtopic: Volcanic Islands & UNESCO Natural Heritage

Value Addition:

• Location: Southern coast of South Korea.

• Status: Special Autonomous Province.

• Type: Volcanic island (oval-shaped; largest & southernmost in Korea).

• Central Feature: Mount Hallasan (1,950 m; dormant volcano).

• Crater Lake: Present at summit.

• Satellite Cones: ~360 parasitic volcanoes.

• UNESCO Tag (2007): Lava tubes + volcanic landscape inscribed as World Heritage Site.

• Recent Context: Visa waiver advisory for Indian nationals.

Subject Analysis:

• Prelims: Volcanic island–country pairing + UNESCO site identification.

• Mains: Volcanism, tectonics & tourism management in fragile volcanic ecosystems.

UPSC GS–3 | SCIENCE & TECHNOLOGY

2. Fluorescent Proteins

Subtopic: Quantum Biology & Biosensing

Value Addition:

• Mechanism:

  • Light absorption → electron excitation.

  • Return to ground state → fluorescence emission.

• Quantum Effect: Radical pair formation influenced by weak magnetic fields.

• Phenomenon: Optically Detected Magnetic Resonance (ODMR).

• Research Breakthrough:

  • Enhanced Yellow Fluorescent Protein shows quantum coherence.

  • Exhibits qubit-like behaviour in living cells.

  • Tested in human kidney cells & E. coli.

• MagLOV Proteins: Engineered magneto-sensitive variants from plant light proteins.

• Application Potential: Cellular quantum sensing of magnetic fields & radio waves.

Subject Analysis:

• Prelims: Basics of fluorescence & radical pair mechanism.

• Mains: Intersection of quantum physics & biology → future of precision medicine & nano-sensing.

3. Epstein–Barr Virus (EBV)

Subtopic: Viral Diseases & Oncology

Value Addition:

• Family: Herpesvirus (Human Herpesvirus-4).

• Transmission: Saliva (highly contagious).

• Global Infection Rate: ~95% population.

• Reactivation Risk: Immunological stress.

• Linked Diseases:

  • Burkitt’s lymphoma.

  • Gastric cancer.

  • Multiple sclerosis.

• Symptoms: Fever, fatigue, lymph node swelling, splenomegaly.

• Treatment: No specific antiviral cure; supportive care only.

• Vaccine Research: Under development.

Subject Analysis:

• Prelims: Virus-family mapping.

• Mains: Virus–cancer link & vaccine development challenges.

UPSC GS–3 | ENVIRONMENT & CLIMATE

4. Peatlands

Subtopic: Carbon Sequestration Ecosystems

Value Addition:

• Definition: Waterlogged wetlands with partially decomposed organic matter (peat).

• Carbon Role: Major long-term carbon sink.

• Drying Impact: Reactivates microbes → carbon release.

• Vegetation:

  • Boreal: Sphagnum mosses.

  • Tropical: Graminoids & woody plants.

• Congo Basin:

  • Covers only 0.3% of land.

  • Stores ~1/3rd of tropical peat carbon.

• Recent Concern: Carbon release from lakes Mai Ndombe & Tumba.

Subject Analysis:

• Prelims: Peatland–carbon linkage.

• Mains: Climate mitigation, carbon sinks & ecosystem degradation risks.

UPSC GS–3 | HEALTH

5. Celiac Disease

Subtopic: Autoimmune Disorders

Value Addition:

• Nature: Hereditary autoimmune disorder.

• Trigger: Gluten (wheat, barley, rye).

• Effect: Immune-mediated damage to small intestine → malabsorption.

• Symptoms: Diarrhea, anemia, weight loss, fatigue.

• Child Impact: Growth impairment.

• Management: Strict gluten-free diet; no permanent cure.

• New Research: Approved drug may reduce inflammation.

Subject Analysis:

• Prelims: Autoimmune vs allergic reaction distinction.

• Mains: Public health nutrition & non-communicable immune disorders.

UPSC GS–2 | INTERNATIONAL RELATIONS & CLIMATE POLICY

6. International Climate Initiative (IKI)

Subtopic: Climate Finance & Global Cooperation

Value Addition:

• Launched: 2008 (Germany).

• Nature: Climate mitigation, adaptation & biodiversity funding mechanism.

• Operates In: 150+ countries (14 priority incl. India).

• Focus Areas:

  • GHG reduction.

  • Climate adaptation.

  • REDD+.

  • Biodiversity conservation.

• Financial Tools: Blended finance, biodiversity credits, climate insurance.

• Monitoring: Robust evaluation framework.

• Recent India Project: €20 million grant for climate resilience.

Subject Analysis:

• Prelims: Climate initiative–country linkage.

• Mains: Climate finance architecture & ecosystem-based adaptation models.

UPSC GS–3 | ECONOMY & MSME POLICY

7. RAMP Programme (Raising & Accelerating MSME Performance)

Subtopic: MSME Reforms & World Bank Support

Value Addition:

• Launched: 2022.

• Duration: 2022–23 to 2026–27.

• Support: World Bank (financial + technical).

• Objectives:

  • Market & credit access.

  • Institutional strengthening.

  • Centre–State coordination.

  • Address delayed payments.

  • Promote green MSMEs.

• Institution: National MSME Council oversees implementation.

• Sub-Schemes:

  • MSME GIFT (Green Investment).

  • MSE SPICE (Circular Economy).

  • MSE ODR (Online Dispute Resolution for delayed payments).

Subject Analysis:

• Prelims: Programme–ministry pairing.

• Mains: MSME competitiveness, sustainability transition & dispute resolution reforms.