Current Affairs – March 14, 2026

{GS1 – Geo} Earth’s Magnetic Field Reversals May Last Up to 70,000 Years

Context (TH): A recent study published in has suggested that magnetic pole reversals on Earth may last much longer than previously believed.

To examine ancient magnetic reversals, researchers analysed deep-sea sediment cores from the North Atlantic Ocean.
The research identified one magnetic reversal lasting about 18,000 years and another lasting around 70,000 years.
These durations are significantly longer than the 2,000–12,000 years typically observed in more recent geological records.

Magnetic Field Reversal

A magnetic field reversal occurs when the Earth’s magnetic field flips, causing the north and south magnetic poles to switch positions.
These reversals are generated by changes in the Geodynamo, the process driven by the movement of molten iron in Earth’s outer core.
Magnetic reversals have happened hundreds of times in Earth’s geological history.
During a reversal, the magnetic field temporarily weakens, reducing Earth’s protection from solar and cosmic radiation.

Geodynamo is the natural process by which the movement of molten iron in Earth’s outer core generates the Earth’s magnetic field.
Changes in this geodynamo process can lead to variations or reversals of Earth’s magnetic poles over geological time.

Impact of Magnetic Field Reversal for Earth and Life

Increased Radiation Exposure: During a magnetic reversal, the Earth’s magnetic field weakens, allowing more solar and cosmic radiation to reach Earth.
Impact on Atmosphere: A weaker magnetic shield could make the atmosphere more vulnerable to erosion from solar wind coming from the Sun.
Changes in Environment & Climate: Prolonged weak magnetic fields may have influenced ancient environmental conditions and planetary systems.
Influence on Evolution: Increased radiation exposure during long reversals may have played a role in the evolution of life on Earth.

Importance of Earth’s magnetic field

Protection from Solar Radiation: It acts as a shield against charged particles and solar wind from the Sun, protecting Earth’s atmosphere and life.
Atmospheric Stability: The magnetic field helps prevent atmospheric erosion caused by high-energy solar particles.
Navigation: It enables compass-based navigation and is used by many animals (e.g., birds and turtles) for migration and orientation.
Space Weather Protection: It reduces the impact of solar storms and cosmic radiation, protecting satellites and communication systems.
Supports Life: By limiting harmful radiation reaching the surface, it helps maintain conditions suitable for life on Earth.

{GS2 – IR} Reliance Industries to Partner in Texas Refinery Project *

Context (IE): U.S. President Donald Trump announced Reliance Industries as a key partner in a $300 billion refinery project in Texas.

Developer: America First Refining (AFR) is developing the refinery at the deep-water Port of Brownsville in South Texas.
Significance: The project represents the first major new oil refinery built in the U.S. since 1977.
Feedstock: It will exclusively process domestic light shale oil sourced from the Permian Basin.
- Permian Basin: A sedimentary basin spanning West Texas and southeastern New Mexico; it is the largest oil-producing region in the United States.
Offtake: Reliance Industries reportedly signed a binding 20-year offtake agreement to purchase, process, and distribute the refined products.

About Light Shale Oil

Light shale oil, or light tight oil (LTO), is a low-density crude trapped in low-permeability shale or tight sandstone formations.
Reservoir: Unlike conventional oil, it occurs in continuous accumulations at greater depths of 2,500-5000 metres.
Extraction: Light Shale Oil cannot flow naturally and requires horizontal drilling and hydraulic fracturing to be extracted.
Property: It is an easily refinable crude with low sulphur and a high hydrogen-to-carbon ratio.
Volatility: High concentrations of light hydrocarbons (e.g., ethane, propane, butane) increase vapour pressure, causing the oil to evaporate quickly and ignite easily.
Production: The United States is the largest producer, followed by Canada and Argentina.
India has no commercial production; prospective basins include the Cambay Basin (Gujarat) and the Krishna-Godavari Basin (Andhra Pradesh).

Read More > India’s Crude Oil Diversification

{GS3 – Envi} International Solar Alliance Foundation Day

Context (PIB): The 10^th Foundation Day of ISA was celebrated on 11 March 2026 in New Delhi.

About International Solar Alliance (ISA)

ISA is an intergovernmental organisation that promotes solar energy deployment worldwide.
Launch: In 2015 at the Paris COP21 by India & France.
Membership: ISA has 125 member and signatory countries.
Headquarters: Gurugram, Haryana.
New Initiative: ISA launched the Green Hydrogen and Storage Start-up Challenge 2026 to support innovation in green hydrogen and energy storage.
Future Energy Systems: ISA is promoting the Global Mission on AI for Energy to develop smart and resilient energy systems using digital technologies.
Governance: ISA Assembly is the apex decision-making body of ISA, in which each Member Country is represented.

India’s Solar Energy Progress

Solar Capacity: India’s cumulative installed solar power capacity has reached around 136 GW.
Share in Renewables: Solar energy contributes over half of India’s renewable energy capacity.
Annual Addition: India installed over 36 GW of new solar capacity in 2025, the highest annual addition so far.
Future Targets: India aims to achieve 500 GW of renewable energy capacity by 2030, with solar power playing a key role in this transition.
Major Solar Schemes:
- PM Surya Ghar Muft Bijli Yojana: Provides rooftop solar power to households.
- PM-KUSUM Scheme: Promotes solar-powered irrigation systems for farmers.
- National Solar Mission (NSM): Part of India’s National Action Plan on Climate Change (NAPCC). Aims to expand solar power generation and promote solar technology in India.

{GS3 – Envi} Summer Ozone Pollution in Delhi

Context (IE): A recent study has highlighted rising surface ozone pollution in Delhi during summer, making summer pollution as serious as winter smog.

Causes of Summer Pollution in Delhi

Surface Ozone: In summer, nitrogen oxides (NOx) from vehicles and industries react with Volatile Organic Compounds (VOCs) under strong sunlight, producing ground-level ozone.
Temperature and Sunlight: Heat and strong solar radiation accelerate photochemical reactions, increasing ozone formation.
Biogenic VOC: Many plants emit Biogenic Volatile Organic Compounds (BVOCs) in hot conditions, which further react with NOx to form ozone.
Climate Change: Rising temperatures and frequent heatwave events increase BVOC emissions and speed up ozone production.
Urban Emissions: Continuous emissions from vehicles, industries, and construction activities provide the necessary precursors for ozone formation.

Surface Ozone Pollution

Surface ozone is a secondary air pollutant formed when nitrogen oxides (NOx) react with VOCs in the presence of sunlight and heat.
Ground-Level Pollutant: Unlike the protective stratospheric ozone layer, surface ozone occurs at ground level (troposphere) and is harmful to humans and ecosystems.
Major Sources: Vehicular emissions, power plants and industries, biomass burning and natural emissions from plants called biogenic VOCs (BVOCs).
Seasonal Occurrence: Surface ozone pollution is more severe in summer due to high temperature, strong sunlight, and stagnant air conditions.
Health Impacts: Causes respiratory problems, lung irritation, reduced lung function, and aggravation of asthma.
Environmental Impacts: Reduces crop productivity, damages plant tissues and acts as a short-lived greenhouse gas contributing to climate change.

Volatile Organic Compounds (VOCs)

VOCs are carbon-based gases that easily evaporate into the atmosphere from sources like fuels, solvents, paints, industries, and vehicle emissions.
Role in Pollution: VOCs react with nitrogen oxides (NOx) under sunlight to form ground-level ozone and photochemical smog.

Biogenic Volatile Organic Compounds (BVOCs)

BVOCs are volatile organic compounds naturally emitted by plants and trees into the atmosphere.
Examples: Common BVOCs include isoprene, monoterpenes, and sesquiterpenes, released from leaves, flowers, and stems.
Role in Ozone Formation: Like VOCs, BVOCs also react with nitrogen oxides (NOx) in the presence of sunlight to form surface (ground-level) ozone.
Environmental Role: BVOCs play roles in plant communication, stress response, and atmospheric chemistry, but can contribute to air pollution when mixed with urban emissions.

Solutions and Policy Measures

Reduce Precursor Emissions: Control emissions of NOx and VOCs from vehicles, industries, power plants, and biomass burning.
Cleaner Energy Transition: Promote renewable energy, electric mobility, and cleaner fuels (BS-VI standards) to reduce fossil fuel combustion.
Urban Planning: Encourage planting of low BVOC-emitting tree species (e.g., amla, babul, bael) instead of high BVOC-emitting species (certain ficus species).
Monitoring and Early Warning Systems: Expand ozone monitoring networks and forecasting systems to alert authorities and the public during high-ozone days.
Climate and Air Quality Policies: Climate mitigation measures that reduce greenhouse gases and fossil fuel use simultaneously help control ozone formation.

Climate Penalty: Climate change is expected to increase both frequency & severity of high-ozone days.
This phenomenon is called the “climate penalty” on air quality, where rising temperatures worsen pollution even if emissions remain constant.

{GS3 – S&T} Supreme Court Orders No-Fault Policy for Covid Vaccine Side Effects

Context (IE): Supreme Court ordered the Union Government to establish a no-fault compensation policy for individuals affected by COVID-19 vaccine side effects or deaths.

Key Directives of the Court

Right to Health: The Court affirmed that Article 21 imposes a state responsibility to support citizens facing severe vaccine-related health consequences.
Transparency: The order mandates public disclosure of Adverse Events Following Immunisation (AEFI) data through existing monitoring systems.
No-Fault Liability: It clarified that this policy will not amount to a legal admission of fault by the Union of India or other authorities.

Right to Health: Indian judiciary recognised it as a fundamental right derived from Article 21 (Right to Life), where ‘Life’ includes human dignity and proper health.

About No-Fault Liability

It is a legal principle that guarantees victims receive compensation for harm even if negligence or fault by the liable party cannot be proven.
Objective: To deliver speedy relief & prevent affected individuals from bearing the ‘burden of proof’.
Indian Precedents: The Motor Vehicles Act, 1988 and Civil Liability for Nuclear Damage Act, 2010, recognise this principle.
Global Practice: Over 25 countries, including the United Kingdom, Australia, and Japan, have no-fault vaccine compensation schemes.
- WHO-supported COVAX No-Fault Compensation Program created the first international vaccine injury compensation system.

Read More > Right to Health in India

Context (IE|IE): Proposals to restrict social media access for minors have renewed debate over the effectiveness and unintended consequences of blanket platform bans.

Neurological Risk: Algorithmic reward loops normalise compulsive use by exploiting adolescents’ underdeveloped self-regulation.
Cumulative Harm: Extended social media use causes anxiety, sleep disorders, and attention deficits that surface only after harm has quietly accumulated.
Identity Distortion: Algorithmic popularity metrics replace organic peer validation, distorting self-worth and identity development.
Onboarding Friction: Mandatory age-gating mechanisms reduce unsupervised access and prevent automatic onboarding of minors.
Safety Risk: Anonymous open networks expose minors to predatory contact and harmful content they cannot safely navigate.

Risk Migration: Platform bans drive minors into unregulated digital spaces such as gaming chats, AI services, and encrypted platforms.
Implementation Gap: India lacks a viable, privacy-preserving age-verification system capable of enforcing population-scale age restrictions.
Circumvention: Children can bypass access restrictions by using VPNs or parental accounts, as seen under South Korea’s Cinderella Law (late-night gaming ban).
Design Blindspot: A blanket ban penalises users but leaves engagement-driven algorithms and profiling incentives unchanged.
Access Inequality: Access restrictions disproportionately limit rural students’ peer learning, exacerbating existing socio-economic disparities.

Way Forward

Well-Being-by-Design: Mandate default safety settings that disable autoplay, infinite scroll, and intrusive notifications for minor accounts.
Age Verification: Develop privacy-preserving age-verification systems within India’s Digital Public Infrastructure (DPI).
Duty of Care: Require platforms to assess and mitigate child-safety risks in their design and recommendation systems.
Digital Literacy: Integrate algorithm awareness, online safety, and digital well-being as mandatory school curriculum components.
Penalty Framework: Introduce platform liability provisions similar to the UK Online Safety Act, allowing regulators to impose penalties based on global platform revenue.

{Prelims – Geo} Cobalt Mining in Democratic Republic of Congo is Causing a Health Crisis *

Context (DTE): A recent report highlights that cobalt mining in the Democratic Republic of Congo (DRC) is causing pollution and public health crises.

About Cobalt

Cobalt is a hard, lustrous, transition metal with ferromagnetic properties (can be magnetised).
It is listed among India’s 30 Critical Minerals (2023) identified by the Ministry of Mines.
Key Applications: Mainly used in lithium-ion batteries for EVs and smartphones; it is essential for producing “superalloys” used in aerospace and defence.
- Cobalt-60, a radioactive isotope, is used in radiotherapy for cancer treatment and food irradiation to extend shelf life.
Domestic Presence: India has minor cobalt deposits in Odisha, Jharkhand, and Rajasthan and relies entirely on imports to meet its requirements.

About Democratic Republic of Congo (DRC)

DRC is the second-largest country in Africa, bordered by nine countries and the Atlantic Ocean.
Geographic Features: Includes the Katanga Plateau, Lakes Tanganyika and Kivu, and the active volcano Mount Nyiragongo.
Key River: Congo River, the only river in the world to cross the Equator twice.
Mineral Resources: It is the largest cobalt producer, accounting for over 70% of global output, and holds major reserves of copper, coltan, lithium, and gold.
Economic Challenges: Despite mineral wealth, DRC faces poverty, corruption, and armed conflicts, especially in North and South Kivu.

Read More > M23 Rebels in Congo

{Prelims – Envi} Workshop to Curb Elephant-Train Collisions

Context (DDN): Ministry of Environment, Forest and Climate Change (MoEFCC) held a two-day national workshop to reduce elephant–train collisions.

Organisers: MoEFCC organised the workshop in collaboration with the Wildlife Institute of India (WII).
Key Outcomes: Authorities finalised mitigation for 77 high-risk railway stretches (1,965 km) and approved scaling of Distributed Acoustic Systems (DAS) and AI-based detection systems.

Landscape of Elephant–Train Collisions in India

Mortality Scale: Train collisions killed 186 elephants between 2010 and 2020, the second-largest anthropogenic cause after electrocution.
Risk Regions: Northeastern and eastern India, particularly Assam, remain the most vulnerable zones.
Demographic Impact: Male elephants face a greater risk as their wider-ranging behaviour and crop-raiding movements increase their exposure to railway tracks.
Time Pattern: Nearly 80% of elephant–train accidents occur between 6 PM and 6 AM, when elephant movement increases, and driver visibility decreases.

Read More > Elephant Deaths from Train Collisions

{Prelims – S&T} Asteroid 2024 YR4 *

Context (TH): NASA confirmed that Asteroid 2024 YR4 will not collide with the Moon after new James Webb Space Telescope (JWST) observations.

Asteroid 2024 YR4 is an Apollo-type Near-Earth Asteroid (NEA), meaning its orbital path crosses Earth’s.
The Asteroid Terrestrial-impact Last Alert System (ATLAS) observatory in Chile discovered it in 2024.
Size: The asteroid is approximately 53 to 67 metres in width.
Composition: It is an S-type (stony) asteroid, primarily made of silicates and nickel-iron.

NEAs are asteroids with orbits close to Earth, typically within 1.3 astronomical units (AU) of the Sun; most of them originate in the central asteroid belt between Mars and Jupiter.
ATLAS, funded by NASA, is an early-warning network system for hazardous Near-Earth Objects (NEOs).

{Prelims – S&T} AI-Integrated Plasma System for Clean Hydrogen & Advanced Carbon Materials

Context (PIB): India and Singapore are working on a project to develop an AI-integrated plasma system for producing clean hydrogen & advanced carbon materials.

Project is supported by Technology Development Board to develop advanced clean energy technology.
Objective: To develop an AI-integrated microwave plasma system for producing CO2-free hydrogen and advanced carbon nanomaterials.
Technology Used: It uses microwave plasma pyrolysis to split methane into hydrogen and solid carbon without producing carbon dioxide.
AI Integration: Artificial intelligence will monitor and optimise reactor parameters to improve hydrogen yield and energy efficiency.
Production Capacity: The pilot plant aims to produce about 4 kg/hour of hydrogen and 12 kg/hour of high-value carbon materials.
Dual-Revenue Model: High-value carbon products such as carbon nanostructures and diamond-graphene hybrid materials can help reduce hydrogen production costs.

Technology Development Board (TDB) is a statutory body under the Department of Science & Technology (DST), mandated to commercialise indigenous research.