Thursday, 27 August 2026 Current Affairs, GK Notes & MCQ Quiz

Climate-Proofing India’s Food System

India aims to shift from mere calorie production to a sustainable, climate-resilient food security model that integrates millets and pulses into the PDS. This approach seeks to protect the supply chain from rising temperatures, groundwater depletion, and erratic monsoon patterns.

Quick highlights

• India produced a record 350 million tonnes of foodgrains in 2024–25, yet remains vulnerable to heatwaves.
• Shift focus from cereal monoculture (rice/wheat) to climate-resilient nutri-cereals like millets.
• Construct temperature-controlled, flood-resilient silos to replace open-plinth storage.
• Incentivize low-emission farming like Alternate Wetting and Drying (AWD) and Direct Seeded Rice (DSR).
• Link IMD forecasting directly with dynamic buffer stock and MSP procurement management.

Context

Despite achieving record foodgrain harvests, India's agricultural system faces terminal heat stress and hydrological volatility. The government is moving toward 'sustainable food and nutrition security' to protect the National Food Security Act (NFSA) framework from climate impacts.

Key Facts

NFSA 2013 legally guarantees subsidized foodgrains to 800 million people. Climate vulnerabilities include pre-monsoon heatwaves affecting wheat filling and inadequate cold-chain infrastructure leading to high perishable losses.

Significance

Diversifying the PDS basket with millets and pulses improves nutritional outcomes (addressing 'hidden hunger') while reducing the water footprint of Indian agriculture.

Challenges / Way Forward

Key steps include issuing sovereign green bonds for farm-level interventions and fostering public-private research to breed biofortified, heat-tolerant seed varieties.

Exam Angle

GS Paper III: Food Security, Climate Change, Agriculture. Relevant for questions on NFSA, MSP diversification, and sustainable farming.

Remember this

• NFSA 2013 covers roughly 57% of India’s population.
• One Nation One Ration Card (ONORC) ensures portability of entitlements.
• Nutri-cereals include bajra, jowar, and ragi.
• AWD and DSR are techniques specifically aimed at reducing methane and water use in rice.
• Silos are more resilient than conventional warehouses against fungal infestations.

Uranium Mining Conflict in Meghalaya

The Meghalaya Legislative Assembly has passed a resolution opposing uranium mining and ore-processing in the state, citing environmental and tribal land rights concerns. Meghalaya holds 16% of India's uranium reserves, but customary practices under the Sixth Schedule have halted extraction since the 1990s.

Quick highlights

• Meghalaya has an estimated 9.22 million tonnes of uranium, mainly in South West Khasi Hills.
• Community protests led to the revocation of UCIL exploration permissions in 2016.
• The state's land-tenure system involves community/clan ownership protected by the Sixth Schedule.
• A 2019 Supreme Court judgment recognized private/community rights over minerals in Meghalaya.
• Local fears center on radioactive contamination and its impact on soil and public health.

Context

The Meghalaya Assembly's resolution reinforces decades of community opposition to extraction in regions like Domiasiat and Wahkaji. This move comes at a time when India is looking to expand its indigenous nuclear fuel cycle.

Key Facts

Meghalaya's deposits are among India's high-grade uranium reserves. Unlike most states, land here is controlled by tribal customs rather than the state government, a right protected under the Sixth Schedule of the Constitution.

Significance

The resolution affects India's Three-Stage Nuclear Power Programme by limiting domestic fuel availability, forcing continued reliance on imported uranium (yellowcake).

Challenges / Way Forward

The primary challenge is balancing federal strategic needs with local consent and environmental safety. The way forward requires a consultative framework that addresses radiation safety concerns.

Exam Angle

GS Paper II: Sixth Schedule, Tribal Rights, Federalism. GS Paper III: Energy Security, Mineral Resources.

Remember this

• Meghalaya accounts for roughly 16% of India’s uranium reserves.
• Key sites: Domiasiat, Lostoin, Mawthabah, and Wahkaji.
• The UCIL (Uranium Corporation of India Ltd) is the nodal agency for mining.
• The Sixth Schedule provides for Autonomous District Councils (ADCs).
• Meghalaya vs. All Dimasa Students’ Union (2019) is the key judicial precedent.

Lithium Carbonate: Trends in Battery Supply Chain

Battery-grade lithium carbonate prices have seen a month-on-month decline, impacting the costs of high-capacity energy storage cells. As a primary refined product, it is essential for manufacturing Lithium Iron Phosphate (LFP) cathodes used in EVs and renewable energy storage.

Quick highlights

• Extracted primarily from continental brines (Lithium Triangle) and hard-rock pegmatite ores (Australia/China).
• Battery-grade purity requires a minimum of 99.5% to prevent thermal runaway.
• Preferred for LFP battery chemistry due to its lower cost compared to lithium hydroxide.
• Unique property: its solubility in water decreases as temperature increases (retrograde solubility).
• Used in pharmaceuticals as a mood stabilizer for treating bipolar disorder.

Context

A recent price drop to RMB 140,000 per tonne has made Lithium Iron Phosphate (LFP) energy storage more affordable. Lithium carbonate remains the dominant chemical form for long-range and stationary batteries.

Key Facts

The 'Lithium Triangle' comprises Chile, Argentina, and Bolivia. Hard-rock minerals like Spodumene are the secondary source. In batteries, lithium ions intercalate into the graphite anode during charging and return to the cathode during discharge.

Significance

Beyond batteries, it is vital for specialized glass (telescope mirrors) and as a flux in aluminium smelting to reduce fluorine emissions.

Exam Angle

GS Paper III: Science & Technology, Energy. Important for questions on EV policy (FAME), critical minerals, and supply chain geopolitics.

Remember this

• Chemical formula: Li₂CO₃.
• LFP stands for Lithium Iron Phosphate.
• Lithium Triangle: Chile, Argentina, Bolivia.
• Battery grade purity is ≥99.5%.
• Lithium is the lightest metal and has high electrochemical potential.

Indigenizing SCADA for Grid Security

The Central Electricity Authority (CEA) has recommended ending reliance on imported SCADA technology by 2030 to protect India's power grid from cyberattacks. SCADA systems are the nervous system of industrial automation, monitoring real-time data across substations and pipelines.

Quick highlights

• SCADA stands for Supervisory Control and Data Acquisition.
• Combines hardware (PLCs/RTUs) and software to monitor voltage, flow rate, and pressure.
• Critical for balancing electrical grid frequency at National Load Despatch Centres.
• Provides real-time fault detection and automated alarming to prevent equipment damage.
• Modern SCADA converges Information Technology (IT) with Operational Technology (OT).

Context

A CEA-constituted committee identified imported SCADA components as a major cyber vulnerability. The goal is to build a self-reliant industrial automation ecosystem by 2030.

Key Facts

SCADA uses Human-Machine Interfaces (HMIs) for remote monitoring. It manages everything from municipal water dosing to cross-country oil pipelines.

Significance

Cybersecurity in the power sector is vital for national security. Indigenous SCADA prevents backdoors and ensures software patches remain available regardless of geopolitical shifts.

Exam Angle

GS Paper III: Internal Security (Cybersecurity), Infrastructure (Energy). Important for questions on 'Atmanirbhar Bharat' in critical technology.

Remember this

• PLC: Programmable Logic Controller.
• RTU: Remote Terminal Unit.
• HMI: Human-Machine Interface.
• SCADA is used in the Power, Oil & Gas, and Water sectors.
• Target Year for indigenization: 2030.

Land Subsidence in Bageshwar

Unregulated soapstone mining in Uttarakhand's Bageshwar district has triggered severe land subsidence, resulting in ground fissures and structural damage to homes. This geological phenomenon is caused by subsurface voids and the loss of hydrostatic support from excessive extraction.

Quick highlights

• Subsidence is the sinking of the Earth's surface due to subsurface movement or removal of materials.
• Soapstone mining creates unstable voids that collapse under gravity.
• Excessive groundwater extraction is the single largest human driver of subsidence globally.
• Loss of pore-water pressure (hydrostatic support) leads to permanent sediment compaction.
• Subsidence increases flooding risks and damages vital underground infrastructure.

Context

Hundreds of homes in Uttarakhand villages are facing cracks and fissures due to rampant soapstone mining. This follows similar disasters in Joshimath, highlighting a regional pattern of land instability.

Key Facts

Land subsidence can be sudden (sinkholes) or gradual. Factors include mining waste blocking natural drainage, which traps water and elevates pore pressure within hill slopes.

Significance

Aquifer compression caused by subsidence is irreversible, permanently reducing a region's groundwater storage capacity.

Exam Angle

GS Paper I: Geography (Geomorphology). GS Paper III: Environment (Mining impacts). Useful for questions on Himalayan ecology and disaster prevention.

Remember this

• Subsidence can be triggered by oil, gas, or water extraction.
• Aquitards/clays are particularly susceptible to compaction.
• Bageshwar is in Uttarakhand.
• Soapstone is the primary mineral involved in the current Bageshwar crisis.
• Differential settlement refers to uneven sinking that causes structural cracks.

India Rejects UNCERD Observations

India has rejected observations from the UN Committee on the Elimination of Racial Discrimination (UNCERD) following its 11th periodic review. The government termed the committee's remarks 'politically motivated' and 'malicious'.

Quick highlights

• UNCERD is a body of independent experts that monitors the implementation of the Convention on the Elimination of All Forms of Racial Discrimination.
• India recently underwent its 11th periodic review in Geneva.
• The committee issued observations that India claimed were biased.
• Member states are required to submit regular reports on how rights are being implemented.

Context

Following the review in Geneva, UNCERD issued a press release with several observations. India strongly rejected these, asserting they lacked factual basis and were politically driven.

Significance

This highlights the friction between national sovereignty and international human rights oversight bodies. It underscores India's position on its internal social structure and legal protections against discrimination.

Exam Angle

GS Paper II: International Organisations, Human Rights. Important for understanding India's interaction with the UN human rights machinery.

Remember this

• UNCERD stands for United Nations Committee on the Elimination of Racial Discrimination.
• The committee monitors the ICERD (International Convention on the Elimination of All Forms of Racial Discrimination).
• Reviews happen in Geneva.
• India is a signatory to the convention.

Drought Resilience Index and Investment Facility

The Drought Resilience Index and Investment Facility (DRI & DRIF) are emerging tools aimed at quantifying drought risks and directing capital toward climate-adaptation projects. They focus on proactive resilience rather than reactive disaster relief.

Quick highlights

• The Index (DRI) quantifies meteorological, agricultural, and socio-economic drought risks.
• The Investment Facility (DRIF) aims to pool funds for resilient infrastructure like check dams and micro-irrigation.
• The goal is to provide a 'Climate-Smart' pathway for water-stressed regions.
• Aligned with the global push for nature-based solutions to climate change.

Context

As climate change makes droughts more frequent and intense, current relief-based models are proving insufficient. The DRI and DRIF represent a shift toward proactive risk management.

Key Facts

Drought resilience includes both physical infrastructure (water harvesting) and financial instruments (weather-indexed insurance). These tools help governments and private investors identify high-risk zones and allocate capital efficiently.

Exam Angle

GS Paper III: Environment, Disaster Management. Useful for questions on climate financing and water security.

Remember this

• DRI: Drought Resilience Index.
• DRIF: Drought Resilience Investment Facility.
• The focus is on proactive adaptation rather than reactive relief.
• Helps in achieving Sustainable Development Goal (SDG) 6 (Clean Water and Sanitation).

Geography of the Trishuli River

The Trishuli River is a major transboundary river originating in Tibet (China) and flowing through Nepal into India as the Gandaki (Narayani). It is a major tributary of the Ganga system and a hub for hydropower and adventure tourism.

Quick highlights

• Originates in the high-altitude glaciers of the Tibetan Plateau.
• Flows through steep V-shaped gorges in Nepal, creating significant hydropower potential.
• Joins the Bhote Koshi and later forms the Narayani River in southern Nepal.
• Crosses into India near Valmiki Nagar (Bihar) as the Gandak River.
• Key stations include Galchchi and Malekhu.

Geographical Course

The Trishuli is characterized by its high sediment load and rapid descent. It drains the central Himalayas, receiving water from the snow-capped peaks of Langtang and Ganesh Himal. Its basin is prone to GLOFs (Glacial Lake Outburst Floods) and landslide-induced damming.

Ecological and Economic Role

The river is vital for Nepal’s national electricity grid, hosting several large run-of-the-river hydropower plants. It is also globally famous for white-water rafting. Downstream, it supports the agriculture of Bihar and Uttar Pradesh via the Gandak canal system.

Exam Angle

Static Geography: Himalayan River systems, transboundary rivers of India and Nepal. Important for mapping questions.

Remember this

• The Trishuli joins the Gandak River system in India.
• It originates in Tibet (China).
• The river is a major source of hydropower for Nepal.
• Galchchi and Malekhu are key monitoring points on the river.
• Narayani is the name of the river in Nepal’s Terai region before it enters India.