UPSC Current Affairs 22 October 2026

• Core Theme: Hosted under the theme “Powering the Global South”.
• Organisers: Hosted by India's Ministry of New and Renewable Energy (MNRE) with backing from the Indo-German Cooperation on Agrivoltaics, the Ministry of Agriculture & Farmers' Welfare, and the International Solar Alliance (ISA).
• Participation: Attended by over 1,000 global delegates, including PV manufacturers, researchers, policymakers, organic farming associations, and start-ups.

• Dual Use of Land: Co-locating solar panels with active agricultural practices allows farmers to reap a dual benefit—producing crops and generating clean electricity simultaneously.
• Climate and Water Efficiency: Panels generate a localized microclimate, shielding crops from excessive heat, reducing soil water evaporation, and providing stable shade-tolerant crop yields.
• Income & Job Multiplier: It protects smallholders (who make up 86% of Indian farmers) from climate uncertainties by ensuring guaranteed solar revenues. Estimates indicate agrivoltaics could generate up to 3.32 lakh jobs across rural areas.

• Vast Area Feasibility: According to a study by The Energy and Resources Institute (TERI), nearly 30% of India's cropland (47.5 million hectares) is technically viable for agrivoltaics.
• Massive Energy Output: Implementing it on just 16 million hectares could generate 12,775 TWh of electricity annually, matching or outstripping India’s projected energy demand for 2050.
• Top Contributing States: Maharashtra, Rajasthan, Andhra Pradesh, Madhya Pradesh, Karnataka, and Uttar Pradesh together account for close to 50% of India’s agrivoltaic potential.

• High Setup Costs: Elevated and tilted solar setups required to clear farming machinery make agrivoltaic systems 25% to 30% more expensive than conventional ground-mounted solar projects.
• Risk of Farm Abandonment: Without strict checks, landowners tend to abandon active farming completely in favour of effortless, guaranteed solar lease revenues. The summit highlighted the immediate need for canopy standards and mandatory crop audits.

• A Historical First: Discovered initially during a rocket flight in 1967, subsequent data from the Uhuru satellite in 1971 revealed it as the first-ever discovered X-ray pulsar.
• The Binary Prototype: Its discovery proved to astronomers that highly luminous X-ray sources in our universe could be powered by matter falling onto a dense star orbiting a normal star.

• Location: It is located roughly 24,000 light-years away from Earth in the constellation Centaurus.
• The Binary System: It is a High-Mass X-ray Binary (HMXB) consisting of two objects trapped in a gravitational dance: a heavy companion star and a compact pulsar.
• The Pulsar Component: A highly magnetized, rotating neutron star with a mass of about 1.21 solar masses squeezed into a sphere just a few kilometers wide. It rotates rapidly, sending out a pulse of X-rays every 4.84 seconds.
• The Companion Star: Known as Krzemiński's Star (or V779 Cen), it is an O-type supergiant star with more than 20 times the mass of our Sun.
• The Orbital Dance: The neutron star completely orbits its massive companion every 2.1 days, causing regular X-ray eclipses from our viewpoint on Earth as it passes behind the giant star.

• Nodal Ministry: It is formulated and implemented by the Ministry of Social Justice and Empowerment (MoSJE).
• Launch Date: The scheme was enacted on April 1, 2018, merging earlier standalone drug prevention schemes into a single umbrella initiative.
• Nature of Scheme: It is a Centrally Sponsored Scheme. The Government of India provides 100% central funding to states, Union Territories, and verified NGOs through direct electronic tracking modules.
• Timeline: The strategic action plan spans from 2018 to 2025.
• Constitutional Backing: The plan aligns with Article 47 of the Indian Constitution, which mandates that the State endeavour to bring about the prohibition of consumption of intoxicating drinks and drugs injurious to health.

• Awareness & Education: Educating schools, colleges, workplaces, and communities about the severe medical and social hazards of substance abuse.
• Stigma Reduction: Eliminating discrimination against individuals dealing with drug dependency to ease their transition back into mainstream society.
• Capacity Building: Training volunteers, doctors, and social workers to build a committed, skilled human resource pool capable of handling addiction care.
• Whole Person Recovery (WPR): Delivering an end-to-end community rehabilitation path that includes motivation, counselling, clinical treatment, and long-term aftercare.

1. Supply & Demand Communication: Multi-media awareness campaigns to curb fresh consumption.
2. Medical & Institutional Intervention: Setting up easily accessible de-addiction infrastructure.
3. Stakeholder Training: Constant capability enhancement through the National Institute of Social Defence (NISD), the nodal training institute for this program.

• Integrated Rehabilitation Centres for Addicts (IRCAs): Run primarily by NGOs to provide long-term residential treatment and therapy.
• Addiction Treatment Facilities (ATFs): Established in government hospitals to supply medically supervised detox and treatments.
• Community-Based Peer-Led Intervention (CPLI): Tailored specifically for adolescents to ensure early-stage prevention and youth mentoring.
• Outreach and Drop-In Centres (ODICs) & District De-Addiction Centres (DDACs): Safe spaces providing community counselling, legal, and mental health aid.

• Scientific Name: Merops apiaster.
• Order and Family: Belongs to the order Coraciiformes and the family Meropidae.
• Alternative Name: Also widely referred to as the Golden Bee-eater due to its brilliantly bright coloration.

• Bright Coloration: It is a slender, multi-coloured bird known for its striking palette, featuring a distinctive yellow throat and a dark trailing edge on its wings.
• Distinct Bill: They possess long, relatively thick, dark bills that curve slightly downward to help snap up flying insects.
• Pointed Wings: Equipped with aerodynamically sharp, pointed wings that allow them to make swift aerial manoeuvres.

• Global Distribution: They have an expansive range, breeding across warmer parts of Europe and Western Asia, and migrating across Africa.
• Indian Presence: In India, they are known to breed in parts of Kashmir. A small fraction of the global population chooses to winter along the Kaveri River in Southern Karnataka and Northern Tamil Nadu rather than flying to Africa.
• Micro-Environmental Habitat: They prefer open countrysides and are frequently found near freshwater systems, savannas, shrublands, grasslands, and agricultural fields.

• Insectivores: Their diet consists almost entirely of flying insects, with a strict preference for bees, wasps, and hornets.
• Air Sorties: They hunt diurnally by waiting patiently on an open perch, darting out into mid-air to catch their prey in flight.
• Sting Removal Technique: Before swallowing a stinging insect, the bird repeatedly bashes and rubs the insect against a hard surface or branch to discharge the venom and break off the stinger.
• High Intake: A single adult European Bee-eater is capable of consuming around 250 bees per day.
• Pest Control: Recent ecological research highlights them as vital natural agents for the biological control of invasive pests, like the destructive Yellow-legged Hornet.

• Social Nature: Highly gregarious birds that nest in close-knit colonies, forage together, and travel in loud, chattering groups.
• Nesting Habits: They use their beaks to excavate their own deep nesting burrows into the banks of rivers, quarries, or sandbanks.
• Vocalizations: They are exceptionally communicative, emitting a distinct, liquidy, and rolling "prreee" or "prruup" call that can travel over long distances.
• Conservation Status: Evaluated as Least Concern on the IUCN Red List, indicating their global populations remain relatively stable for now.

• Implementing Body: Conducted by the Wildlife Institute of India (WII), Dehradun.
• Timeline: The entire national assessment and data collection process is expected to take five years to deliver the final numbers.
• Phased Strategy: The exercise will initially focus on mapping human-sloth bear conflicts in protected areas before forwarding full-scale proposals for the remaining three species.
• Methodology: Scientists will use a combination of modern and traditional monitoring techniques, including:
  • Camera traps to track animal movements.
  • Footprint analysis (pugmarks).
  • Scat samples for genetic tracking.

1. Sloth Bear: (Melursus ursinus): Found across Central India, Western Ghats, and Himalayan foothills; ant/termite-eating with a shaggy black coat and V/Y-shaped chest mark; status is Vulnerable.
2. Himalayan Brown Bear (Ursus arctos isabellinus): Inhabits high-altitude Upper Himalayas; large and cold-adapted; status is Critically Endangered (subspecies).
3. Asiatic Black Bear (Ursus thibetanus): Found in the Himalayan forest belt and Northeast India; tree-climbing with a distinct white V-chest patch; status is Vulnerable.
4. Sun Bear (Helarctos malayanus): Restricted to Northeast India's dense forests; the smallest global bear species with a golden chest patch; status is Vulnerable.

• The Sensing Mechanism: The system utilises a unique textile grid impregnated with liquid crystals (without lattice agents).
• Molecular Alignment Change: Naturally, the liquid crystal molecules maintain a vertical alignment when interacting with air. When snake venom touches the grid, it disrupts this interface, causing the molecules to lose their alignment and become randomly oriented.
• Visual Patterns: This random shift generates distinct, bright, and birefringent optical patterns that can be observed under a polarised optical microscope.
• AI Integration: A deep-learning model called MobileNetV3-Large is used to analyse these optical texture patterns. The AI can spot subtle features and variations that are too complex for human healthcare workers to identify visually.

• High Accuracy: The system achieves a 95% classification accuracy between cobra and viper samples.
• Rapid Results: The optimal sensing and processing time is only four minutes.
• High Sensitivity: The sensor successfully detects venom at concentrations as low as 45 micrograms per millilitre (μg/mL) for both snake types.

• No Antibodies Required: Unlike standard immunochemical tests, this sensor does not rely on venom-specific antibodies or fixed capture molecules, simplifying production.
• Cost-Effective and Simple: The reliance on simple liquid crystal alterations rather than complex biochemical reagents significantly reduces operational costs.
• Better Clinical Decisions: Fast identification allows doctors to administer the correct Anti-Snake Venom (ASV) quickly, preventing the misuse of antivenom and reducing severe side effects or mortality.

• Not a Universal Identifier: The current study acts only as a case study specifically for distinguishing cobra vs. viper venom; it cannot yet identify all snake species or venom types.
• Awaiting Clinical Validation: The device remains a laboratory proof-of-concept. Further testing, enhanced sensitivity checks, and clinical trials are required before it can be deployed for routine use in hospitals or rural clinics.

Parameter	Conventional Diagnostic Approaches	Liquid Crystal–AI Approach
Basic Principle	Relies on clinical assessment or antibody-antigen immunochemical binding	Based on venom-induced changes in liquid crystal alignment
Output Signal	Biochemical reactions or visible clinical symptoms	Structural optical patterns
Analysis Method	Specialized laboratory testing or expert clinical interpretation	Deep learning-based image classification via AI
Turnaround Time	Highly dependent on the method; often takes longer	~4 minutes under experimental conditions
Primary Limitation	Requires expensive reagents, specialized gear, or cold chains	Clinical performance and real-world utility are still unvalidated

• Scientific Name: Catreus wallichii.
• Family: Belongs to the pheasant family Phasianidae and stands out as the unique, single member of its genus, Catreus.
• Physical Traits: They possess a buff-brown plumage heavily barred with black and grey, which acts as a natural camouflage against rocks. They are identified by a long, untidy tail, a messy crest on the head, and distinct crimson-red patches of bare skin around their eyes.

• Geographic Range: Native exclusively to the Western Himalayas, stretching across northern Pakistan, through Jammu & Kashmir, Himachal Pradesh, and Uttarakhand in India, to central Nepal.
• Altitudinal Preference: Typically found at elevations between 1,200 and 3,350 metres above sea level.
• Terrain: Prefers steep, rocky hillsides, open alpine grasslands, scrub vegetation, and areas studded with short trees.

• Nesting: They are ground-dwelling birds that build simple nests known as "ground scrapes", usually hidden safely under rocks or heavy undergrowth.
• High Natal Philopatry: They display strong natal philopatry, meaning individuals generally return to, or stay very close to, the exact area where they were born to breed.
• Diet: Omnivorous ground feeders relying on roots, tubers, bulbs, buried seeds, berries, earthworms, and insect larvae.
• Indicator Species: Their presence is a crucial indicator of the overall health of the fragile Himalayan grassland ecosystem.

• Habitat Destruction: The rapid degradation and fragmentation of early-successional grasslands due to heavy cattle grazing, human fodder collection, and land conversions.
• Forest Fires: Frequent wild forest fires, particularly during their critical breeding seasons, severely impact population growth.
• Poaching: Illegal hunting remains a severe threat to these ground-dwelling birds.

• IUCN Red List: Classified as Vulnerable (VU) due to small, fragmented wild populations.
• CITES: Listed under Appendix I, which strictly prohibits international commercial trade of the species.
• Indian Wildlife (Protection) Act, 1972: Accorded the highest level of legal protection under Schedule I.

• Dual-Instrument Advantage: The team combined observations from the VELC (Visible Emission Line Coronagraph) payload onboard Aditya-L1 and the ASPIICS coronagraph onboard Proba-3.
• Complimentary Techniques:
  • ASPIICS (Imaging): Captured high-resolution visible-light images to accurately map the shape, size, volume, and outward movement of the eruptions.
  • VELC (Spectroscopy): Split the coronal light into different wavelengths, providing independent measurements of the plasma properties, including density, temperature, and thermal energy.
• Tracking Eruption Energy: Researchers directly compared and tracked how the different energy components—kinetic energy (motion), thermal energy (heat), and magnetic energy—changed as the CMEs propagated through the inner solar corona.
• Data Validation: Despite using completely different measurement techniques and physical assumptions, the independent calculations from both spacecraft yielded broadly consistent and aligned estimates of the CMEs' properties.

• Aditya-L1 (India):
  • It is India's first dedicated solar mission, launched by ISRO on September 2, 2023.
  • It continuously operates from a halo orbit around the Sun-Earth Lagrange Point 1 (L1), allowing an unobstructed, continuous view of the Sun without eclipses.
• Proba-3 (Europe):
  • Developed by the European Space Agency (ESA), it was launched into space in December 2024 using India's PSLV-XL rocket from Sriharikota.
  • It is the world's first precision formation-flying mission, featuring two separate spacecraft that fly exactly 150 metres apart. One satellite perfectly blocks the bright solar disk to create a sustained artificial solar eclipse, enabling the second satellite's ASPIICS instrument to view the faint inner corona in extreme detail.

• Space Weather Forecasting: Coronal Mass Ejections throw massive amounts of magnetized plasma into interplanetary space. When directed toward Earth, they cause severe geomagnetic storms.
• Critical Infrastructure Protection: Intense solar storms can disrupt the near-Earth space environment, trigger power grid blackouts, cripple GPS and radio communication signals, and permanently damage low-Earth-orbit satellites.
• Decoding Early Physics: Observing CMEs very close to the solar disk has historically been incredibly challenging. This joint effort provides crucial data points on how these faint, early-stage eruptions form before evolving into massive space weather events.

• Infra Development: Addressing network gaps across international cables, national connections, and local municipal grids.
• Private Mobilisation: Using public finance and guarantees to attract private investments to hard-to-reach, underserved markets.

• Lowering Entry Barriers: Lowering the retail cost of basic smartphones and broadband services.
• Financing Partnerships: Collaborating with mobile operators, manufacturers, and refurbishment businesses to introduce financing options like installment plans over time.

• Secure Foundations: Building reliable frameworks for digital IDs, digital payment systems, and secure information-sharing.
• Employment Literacy: Offering digital literacy and workforce-specific training so individuals can translate internet access into paid work.

• Task-Oriented Tools: Shifting the focus away from massive, resource-heavy LLMs toward "Small AI"—artificial intelligence tools adapted to specific local conditions.
• Sector Applications: Practical use cases include helping small farmers detect crop diseases, assisting community health workers with patient care, and helping small businesses manage inventory.

• AI Infrastructure and Readiness Initiative: Launched alongside the strategy, this initiative helps emerging markets access shared, pay-as-you-go GPU computing infrastructure. It acts as a cost-effective alternative to building highly expensive standalone national data centres.
• Target Sectors: Growth will be concentrated across 5 priority areas: infrastructure/energy, agribusiness, healthcare, tourism, and value-added manufacturing.
• Geographic Focus: The initial roll-out of the AI initiative will heavily focus on Africa and Latin America, with key knowledge partners like Nvidia and Cassava Technologies.
• Cross-Cutting Trust: Rigid protocols for privacy protection, cybersecurity, and fraud prevention run natively across all four priority pillars.

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