Content
- Can the ICJ ruling force rich nations to pay for historical emissions?
- How not to identify an illegal immigrant
- Why the world needs better green technologies
- Malaria’s new frontlines: vaccines, innovation, and the Indian endgame
- Mystery of African Mahogany G20 sapling solved
- Language & division of states
Can the ICJ ruling force rich nations to pay for historical emissions?
Core of the ICJ Ruling
- Advisory nature: The ruling is not legally binding, but offers a legal interpretation of existing international obligations under climate law.
- Key reaffirmations:
- Countries are legally obligated to reduce GHG emissions.
- Developed nations must support vulnerable states facing disproportionate climate impacts.
- Reiterates the 1.5°C target from the Paris Agreement as a climate safeguard.
Relevance : GS 3(Environment and Ecology)
Legal & Scientific Challenges
- Causality problem:
- Attribution of specific climate damages to specific countries’ emissions remains scientifically difficult.
- Most extreme weather events are exacerbated, not uniquely created, by climate change, making legal claims tenuous.
- Proof thresholds:
- Courts require clear evidence that a country’s inaction led to measurable harm.
- As warming remains around 1–1.5°C, anthropogenic signals are not always dominant in many weather events.
Geopolitical and Enforcement Constraints
- Sovereignty prevails:
- Nations like the U.S., China, and India are unlikely to alter energy systems due to a non-binding ruling.
- The ICJ has no enforcement arm; any binding action would require UN Security Council backing, which is highly political.
- Selective compliance:
- U.S. has withdrawn from the Paris Agreement and continues fossil fuel subsidies.
- Western nations historically dodge accountability, while developing nations are overregulated by the same legal frameworks.
Implications for Climate Reparations
- Reparations unrealistic:
- History shows little delivery on promised climate finance or reparations; most are repackaged development aid.
- Ted Nordhaus argues reliance on reparations is a “poor trade-off” that hinders energy access in developing nations
- Loss and Damage Fund:
- Though symbolically important, funding remains limited.
- Both Nordhaus and Grover are sceptical it will yield substantial compensation for vulnerable nations.
Domestic Leverage Potential
- Legal value at home:
- Ruling offers activists and courts in treaty-ratifying countries a legal foundation to challenge their own governments.
- Likely to be used more in domestic courts than in international litigation.
- Vulnerable nations:
- Small Island Developing States (SIDS) may use this to bolster local climate litigation and international diplomatic leverage.
Shift in Global Technological Dynamics
- Tech flow no longer unidirectional:
- China now leads clean tech exports, including to the West; India may follow.
- This undercuts the 1990s assumption of one-way tech transfer from rich to poor countries.
- Modernising frameworks:
- The ICJ ruling operates within the outdated “common but differentiated responsibilities” (CBDR) model.
- There’s a call for a new global climate framework reflecting multi-polar tech development.
Equity vs Pragmatism
- Ecomodernist critique (Nordhaus):
- Efforts to “co-opt Western legal mechanisms” for equity (e.g., Loss and Damage Fund, ICJ rulings) have failed.
- Advocates domestic development-first strategies using all available resources.
- Climate justice perspective (Grover):
- Acknowledges double standards in global legal norms.
- Urges developing nations to act for their own sake, citing examples like Delhi’s air pollution and corporate capture of energy policy.
Future Outlook
- ICJ ruling ≠ Global shift:
- Unlikely to trigger a wave of international litigation, despite some political claims (e.g., U.K. Shadow Energy Secretary).
- Tool, not a solution:
- Best viewed as a strategic instrument for domestic action — not a global accountability game-changer.
- Political reality check:
- Courts alone can’t force decarbonisation; global politics, power asymmetries, and economic interests dominate.
How not to identify an illegal immigrant
Context & Administrative Trigger
- Timeframe: Winter 2024, during Delhi’s cold wave.
- Trigger: Order from Delhi Lt. Governor Vinai Kumar Saxena directing the police to identify “illegal” foreign nationals, especially post-regime change in Bangladesh.
- Result: Surge in detentions of Bengali-speaking residents across urban slums in Delhi.
Relevance : GS 2(Governance , Social Issues)
Operational Pattern of Crackdown
- Primary Targets: Bengali-speaking residents, particularly in jhuggi settlements.
- Indicators Used for Profiling:
- Language spoken (Bangla dialects).
- Anonymous community tips on dialect and origin.
- Clothing (e.g., lungi), and remittance patterns.
- Key Concern: Reliance on linguistic and cultural profiling rather than legal documentation or due process.
Linguistic Bias & Stereotyping
- Systemic Issue: A narrow perception of Indian Bengali identity, dominated by urban Kolkata dialects and pop culture.
- Misconceptions:
- Treating non-Kolkata dialects or rural Bangla as “foreign”.
- Misreading commonly used words like “paani” as non-Indian — despite their historical presence in early Bengali texts like Charyapada (8th century).
- Result: Cultural markers wrongly used as nationality tests.
Legal & Structural Shortcomings
- Neglect of Contextual Realities:
- No consideration of 2015 India-Bangladesh land swap, where residents could opt for Indian citizenship.
- No nuance in assessing mixed-status families or cross-border remittances.
- Example: Indian citizen detained solely for sending money to elderly parents in Bangladesh.
Ethnic & Cultural Profiling
- Cultural identifiers used as suspicion markers:
- Lungi as an alleged “foreign” garment.
- Remittances equated with cross-border illegality.
- Cultural pushback: Protest songs and local resistance narratives question this overreach — “Just because I wear a lungi… doesn’t mean I was born in Bangladesh.”
Class, Caste & Identity Intersections
- Initially impacted: Bengali Muslims.
- Now widened to: Lower-caste Hindu Bengalis.
- Emerging Trend: A complex overlap of ethnicity, caste, class, and dialect defines vulnerability — not legal status.
Public Discourse & Elite Silence
- Noted Absence: Limited response from Bengali public intellectuals in media, literature, or academia.
- Key Questions:
- Is there a class detachment within Bengali society?
- Are elite Bengalis silent due to discomfort with working-class dialects and attire?
Broader Implications
- Xenophobic Normalization: Language and attire increasingly seen as proxies for illegality.
- Institutional Fragility:
- Weak documentation processes.
- Absence of legal aid for suspected individuals.
- Lack of linguistic and cultural training for enforcement agencies.
- Risk: Deepening intra-ethnic, class, and religious fault lines.
Key Takeaways
- Legal due process must override cultural inference in determining immigration status.
- Language, class, and dress cannot serve as lawful indicators of citizenship.
- A balanced approach requires institutional training, community engagement, and safeguards against arbitrary profiling.
Why the world needs better green technologies
Context & Key Question
- Backdrop: Global climate targets and energy independence goals are driving a massive push for renewable energy.
- Core Issue: Are silicon photovoltaics (Si-PV) still the best option, or should we invest in next-gen solar technologies with higher efficiency and lower environmental impact?
Relevance : GS 3(Environment and Ecology)
Silicon Photovoltaics (Si-PV): Overview
- Invented: 1954, Bell Labs (USA).
- Efficiency:
- Lab efficiency: 18–21%.
- Real-world (in-field) efficiency: 15–18%.
- Global Production:
- 80% of supply from China.
- India: Domestic capacity at ~6 GW, expected to rise.
Efficiency vs. Land Constraints
- Efficiency matters: Doubling efficiency → halves land requirement.
- Land crunch:
- Rapid urbanization.
- Environmental concerns limiting greenfield solar expansion.
- Implication: Silicon PV’s lower efficiency makes it less viable in space-constrained or high-demand areas.
Alternative Photovoltaic Technologies
- Gallium Arsenide (GaAs) Thin-Film: Up to 47% efficiency.
- Commercial-readiness: Many next-gen PVs are lab-tested, demonstration-ready, and awaiting commercial deployment.
Energy & Climate Dynamics
- Renewable Energy Installed (India): 4.45 TWh (by end-2024).
- Atmospheric CO₂: Increased from 350 ppm (1990) to ~425 ppm (2025).
- Implication: Renewable expansion isn’t keeping pace with energy demand.
Green Hydrogen: Promise vs. Reality
- Production method: Electrolysis using renewable power.
- Challenges:
- Electrolysis is energy-intensive.
- Storage & transport of hydrogen is difficult (leaky, low-density).
- Energy cascade losses: From Si-PV → electrolysis → storage → reconversion = compounding inefficiencies.
Proposed Alternatives
- Molecular Carriers: Convert H₂ to green ammonia (NH₃) or green methanol (CH₃OH) for transport.
- But reverse conversion still demands high energy.
- Artificial Photosynthesis (APS):
- Directly produce fuels from H₂O, CO₂/N₂, and sunlight.
- Still in lab-stage, but promising for future.
- CO₂ Recycling: Turn CO₂ into useful fuels = climate mitigation + energy solution.
Europe’s Lead: RFNBO
- Renewable Fuels of Non-Biological Origin (RFNBO):
- Fuels made using renewables but not from biomass.
- Includes green hydrogen, methanol, ammonia from sunlight and air.
- Policy push: India urged to follow suit to reduce 85% energy import dependence.
India’s Strategic Needs
- Current import dependence: 85% of energy (oil, coal, gas).
- Geopolitical vulnerability: Global conflicts + price shocks.
- Recommendation: Ramp up R&D spending, foster public-private innovation.
Conclusion & Takeaways
- Green hydrogen & Si-PV are helpful but not enough.
- Efficiency and energy economics need urgent innovation.
- India must diversify energy strategies to:
- Improve energy density.
- Optimize land use.
- Enable cleaner, scalable fuels.
- Proactive R&D investment today is more cost-effective than reactive damage control tomorrow.
Malaria’s new frontlines: vaccines, innovation, and the Indian endgame
Malaria control in India has entered a decisive phase, powered by vaccine breakthroughs and innovation. Yet, persistent tribal hotspots and policy gaps challenge the 2030 elimination goal.
Relevance : GS 2(Health , Governance)
India’s Progress & Persistent Challenges
Achievements:
- >80% reduction in malaria burden between 2015–2023.
- National ambition: Elimination of malaria by 2030.
Persisting Hotspots:
- Tribal districts still highly affected:
- Lawngtlai (Mizoram): 56+ cases/1000 people.
- Narayanpur (Chhattisgarh): 22+ cases/1000 people.
- Mixed infections: In Jharkhand, 20% of cases involve both P. falciparum & P. vivax.
- Asymptomatic carriers: Silent transmission even in low-incidence zones.

Malaria Parasites in India
- P. falciparum (Africa-dominant): More lethal.
- P. vivax (Asia-dominant): Dormant liver stage → late relapses.
- P. cynomolgi (monkey malaria): Crucial research model for P. vivax, but underutilized in India.
First-Generation Vaccines
1. RTS,S (Mosquirix)
- Approved in 2021.
- Protection: ~55% initially, wanes in 18 months.
- Requires 4 doses.
2. R21/Matrix-M (Oxford–Serum Institute)
- WHO-approved in 2023.
- Up to 77% efficacy in Phase 3.
- Low-cost, fewer doses, room-temperature stable → ideal for India.
Limitations of Current Vaccines
- Target only one life stage (pre-erythrocytic).
- Vulnerable to reinfection and continued transmission.
- Need for multi-stage or whole-parasite strategies.
Next-Gen Vaccine Approaches
A. Whole-Parasite Vaccines
- PfSPZ (Sanaria):
- Uses radiation-weakened sporozoites.
- 96% antibody response, up to 79% protection after 3 doses.
- PfSPZ-LARC2:
- Modified version with potential for single-dose use.
- Targeted use in outbreaks/migrant populations.
B. Blood-Stage Vaccines
- PfRH5:
- Blocks red blood cell invasion.
- Strain-transcending protection.
- Promising Phase 1a/2b trials in UK, Gambia, Burkina Faso.
C. Transmission-Blocking Vaccines (TBVs)
- Pfs230D1 (Mali):
- Blocks fertilization in mosquito gut.
- 78% reduction in transmission (Phase 2).
- India’s TBV candidate – AdFalciVax:
- Combines PfCSP + Pfs230/Pfs48/45.
- Completed preclinical testing in 2025.
- Mice: >90% protection with long immune memory (4+ months).
- Room temp stable (9 months) → ideal for rural India.
- P. vivax TBV (Pvs230D1M):
- First human trial in Thailand: up to 96% transmission reduction.
Immune Boosting & Novel Platforms
Protein-Based Innovations
- Ferritin nanoparticle + CpG adjuvant:
- Cut liver-stage parasite burden by 95% in mice.
- PfCSP–MIP3α fusion:
- Enhances antibody + T-cell response.
- Reduced infection by 88% in mice.
mRNA-Based Platforms
- Pfs25-mRNA (CureVac + NIH):
- Complete transmission block in mice.
- Antibodies lasted 6+ months after 2 doses.
- BNT165e (BioNTech):
- Blood-stage mRNA candidate.
- Trial paused by FDA in 2025.
Parasite Evasion & Immune Engineering
- RIFIN proteins bind to LILRB1 receptors, silencing immune cells.
- Antibody D1D2.v-IgG (India):
- Binds RIFIN 110x stronger than natural receptor.
- Restores immune response in lab tests.
Vector Control Innovations
CRISPR Gene Drives
- Fertility-suppressing drives:
- Eliminated entire Anopheles gambiae colonies in lab within a year.
- FREP1 gene edit:
- Blocks parasite growth inside mosquito.
- Spread to 90% of lab mosquitoes in 10 generations.
Smart Mosquito Designs
- Engineered to die early if infected → self-limiting transmission.
- Prevents ecological disruption by preserving uninfected mosquito populations.
Institutional & Policy Gaps
Key Challenges:
- Lack of:
- Trained doctors,
- Surveillance for resistance, and
- Robust vector control systems.
- India’s P. vivax research underutilised due to:
- Restricted monkey access, outdated priorities.
Steps Ahead:
- ICMR Expression of Interest (2025):
- For industrial partners to co-develop AdFalciVax.
- Critical needs:
- GMP-grade production, immune biomarkers, and efficacy benchmarking vs RTS,S & R21.
Takeaways
Category | Key Insight |
Burden | >80% reduction, but pockets like Mizoram & Chhattisgarh remain high |
Parasites | India fights both P. falciparum & P. vivax (harder to eliminate) |
Vaccines | RTS,S, R21, PfSPZ, PfRH5, TBVs like AdFalciVax under rapid development |
Tech | mRNA, nanoparticle, CRISPR gene drives, immune-modulating antibodies |
Goal | Malaria elimination by 2030 |
Need | Vaccine innovation + ecosystem of diagnostics, training, and policy support |
Mystery of African Mahogany G20 sapling solved
Background: G20 Plantation at Nehru Park
- Occasion: India’s G20 Presidency (2023).
- Event: Ceremonial plantation of saplings by G20 member countries and invited international organisations.
- Location: Designated plantation area in Nehru Park, New Delhi.
- Objective: Symbolic diplomacy using ecologically significant trees representing each country.

Relevance : GS 3(Environment and Ecology)
The Mystery
- Issue Raised: A citizen-led platform (X, formerly Twitter) flagged that the sapling labelled “African Mahogany” didn’t resemble the actual species.
- Trigger: Viral post with over 28 lakh views, prompting questions on whether species verification had occurred.
- Official Clarification:
- The currently standing sapling is a substitute, not the original African Mahogany gifted by Nigeria.
- The original sapling died after being planted due to non-acclimatisation.
Scientific & Bureaucratic Process
- Plant Quarantine:
- Imported plants underwent a required quarantine at ICAR-NBPGR, New Delhi.
- Pre-plantation Vetting:
- Involved expert species identification to maximize survival in Delhi’s climate.
- Sources Confirmed:
- Substitutes like Jamun (Indian species) were temporarily planted to maintain visual and aesthetic consistency.
Country-wise Sapling Details
- South Korea & South Africa:
- Their original saplings failed to survive post-plantation.
- Embassies confirmed it was within expected parameters.
- South Korea has already replaced its original species.
- Nigeria’s African Mahogany:
- Has now been sourced again and will be planted after the monsoon, as per ideal conditions.
Broader G20 Tree Representation
- A total of 17 tree species were planted by G20 countries and international organisations.
- Symbolism & Environmental Relevance:
- Turkey, Spain, Italy: Olive trees.
- South Korea: Silver tree.
- Egypt, Saudi Arabia: Date Palm.
- Indonesia: Frangipani.
- China: Camphor Laurel.
- African Union: Sausage Tree, Red Frangipani.
Coordination & Logistics
- Nodal Agency: New Delhi Municipal Council (NDMC).
- Coordination: Ministry of External Affairs (MEA).
- Challenges Faced:
- Survival in new climate.
- Visual aesthetics of the ceremonial area.
- Ensuring embassy-level approval before using substitutes.
Key Takeaways
- Plant survival in alien climates is a known challenge; substitution is a standard protocol.
- Visual consistency maintained via indigenous look-alike species (like Jamun).
- Embassies remained involved in the replacement process, ensuring diplomatic sensitivity.
- The episode reflects eco-diplomacy, biosecurity procedures, and public accountability.
Language & division of states
Background Context
- Triggering Event: TN Governor R. N. Ravi criticized the linguistic basis of state formation, arguing it led to second-class citizenship for some populations.
- Core Debate: Whether the linguistic reorganisation of states in 1956 was a divisive or unifying force for India.
Relevance : GS 2(Social Issues )
India Before First Reorganisation (1956)
- Dual System of Administration:
- British India: Directly administered provinces.
- Princely States: Indirect rule through native rulers.
- Constitutional Classification (1950):
- Part A: Former British provinces, governed by elected legislatures.
- Part B: Former princely states, governed by Rajpramukhs.
- Part C: Commissioners’ provinces + some princely states.
- Part D: Andaman & Nicobar Islands (governed by the Centre).
- Total States/UTs on 26 January 1950: 28 states + 6 Union Territories.
Linguistic Reorganisation of States (1956)
- Key Trigger: Demands for states based on linguistic and cultural identity surged post-Independence.
- Major Catalyst: Potti Sriramulu’s death (1952) during a fast for a Telugu-speaking state (Andhra) sparked widespread protests → creation of Andhra State.
- Political Response:
- Fazl Ali Commission (SRC) formed in 1953.
- Submitted report: 30 September 1955.
- Recommended reorganisation of India into 16 states & 3 UTs based on administrative efficiency + linguistic affinity.
Data Highlights: After 1956 Reorganisation
- States created based on dominant languages:
- Andhra Pradesh (Telugu)
- Kerala (Malayalam)
- Karnataka (Kannada)
- Tamil Nadu (Tamil)
- Maharashtra (Marathi)
- Gujarat (Gujrati)
- States that were reorganised or merged:
- Madhya Pradesh, Punjab, Rajasthan, Bihar, Bombay, Madras, etc.
- Part A, B, C, D classifications abolished.
- New structure: Unified system with elected legislatures and clearer administrative boundaries.
Key Arguments For Linguistic Reorganisation
- Unity Through Identity:
- Linguistic states ensured that diverse language groups felt included, preventing alienation.
- Nehru’s Pragmatic Approach:
- Despite early caution, Nehru eventually supported linguistic states to manage unrest and enhance governance.
- Democratic Accommodation:
- Recognised linguistic identities as part of a plural democratic ethos.
- Successful Model:
- Scholar Ramachandra Guha and others note that linguistic reorganisation helped unify rather than divide India.
Governor R. N. Ravi’s Criticism (2025)
- Core Concern: Linguistic division has made many feel like second-class citizens.
- Quote: “In my own state Tamil Nadu… people live together but once it became a linguistic state, one-third became second-class.”
- Implication: Suggests that linguistic politics led to exclusion, particularly for linguistic minorities in each state.
Counterpoints to Governor’s View
- SRC’s Balanced Approach:
- Rejected rigid linguistic determinism; argued for unity & cultural balance.
- Historical Complexity:
- Bombay and Punjab saw violent protests during their linguistic splits (e.g. Bombay’s bilingual state demand).
- State Unity Beyond Language:
- Example: Maharashtra and Gujarat, despite being split, remained stable politically and economically.
Broader Implications for Indian Federalism
- Language as a Unifying Principle:
- While controversial, it has remained core to India’s identity management.
- Limits of Linguistic Logic:
- Not applied uniformly — e.g., Punjab-Haryana division also involved religious and regional considerations.
- Ongoing Challenges:
- Demands for new states (e.g., Gorkhaland, Vidarbha) still persist.
- Need to address intra-state linguistic minorities’ rights.
Conclusion: A Mixed Legacy
- Reorganisation of 1956 was a pragmatic response to post-Independence challenges.
- Despite criticisms, it largely succeeded in:
- Reducing secessionist tendencies.
- Ensuring regional representation.
- Preserving national unity amidst cultural diversity.
- However, interior exclusions and new grievances require renewed attention within federal policy frameworks.