12 September 2024

• History: Battle of Saragarhi Day commemorated on 12 September. The 1897 battle of 21 Sikh soldiers against thousands is one of the greatest last-stands in military history.
• Environment: Arctic sea ice data and its role in shifting the Asian jet stream and Indian rainfall patterns dominated GS1 analysis.
• Biodiversity: The Elongated Tortoise sighting in the Aravallis highlighted the dual function of this range as an ecotone.
• Polity: The Parliamentary Committee on Official Language's work on Hindi promotion was analysed after Amit Shah's re-election as chairman.

GS area: History (modern), Defence

The Battle of Saragarhi is commemorated every year on 12 September. It is one of the most famous last-stands in world military history.

Key facts:

• Date: 12 September 1897.
• Location: A signalling post called Saragarhi in the North-West Frontier Province (now Pakistan), between Fort Lockhart and Fort Gulistan.
• Combatants: 21 soldiers of the 36th Sikh Regiment (36th Sikhs) under Havildar Ishar Singh against an estimated 8,000-10,000 Afridi and Orakzai tribal warriors.
• Outcome: All 21 soldiers died fighting. They held the post for approximately seven hours, allowing time for the forts to be reinforced.
• Honours: Each soldier was posthumously awarded the Indian Order of Merit (Class I), the highest military award available to soldiers of the British Indian Army at the time.
• State recognition: The Punjab government declared 12 September Saragarhi Day and a state holiday in 2017.
• 36th Sikh Regiment: Now exists as the Sikh Regiment in the Indian Army, headquartered in Ramgarh Cantonment, Jharkhand.

Static linkage: Modern Indian history, military history, North-West Frontier Province.

GS area: Environment, International Relations

The Air Quality Management Exchange Platform (AQMx) was developed by the Climate and Clean Air Coalition (CCAC) to facilitate global cooperation in improving air quality.

Key facts:

• CCAC: The Climate and Clean Air Coalition is a voluntary partnership of governments, intergovernmental organisations and private sector entities. Hosted by the UN Environment Programme. Focuses on short-lived climate pollutants (SLCPs): methane, black carbon, ozone and hydrofluorocarbons (HFCs).
• AQMx purpose: Provides tools, guidance and best practices to help air quality managers meet WHO Air Quality Guidelines.
• WHO guidelines: The 2021 WHO Air Quality Guidelines set a PM2.5 annual mean of 5 micrograms per cubic metre. India's national standard is 40 micrograms (eight times stricter than WHO).
• UNEA-6 resolution: The Sixth UN Environment Assembly (2024) passed a resolution on clean air management that AQMx supports.
• Short-lived climate pollutants: Unlike CO2, SLCPs remain in the atmosphere for a shorter period. Cutting them yields faster climate benefits alongside public health improvements.

Static linkage: Air quality governance, UN Environment Programme, CCAC.

GS area: Environment (climate science), Geography

A three-statement analysis on polar ice melting is a classic UPSC prelims format:

• Arctic ice and thermohaline: Arctic sea ice melting (floating ice) does not directly raise sea levels (Archimedes' principle). But it disrupts thermohaline circulation by adding freshwater to the North Atlantic. Thermohaline circulation (the "ocean conveyor belt") drives global heat distribution. Disruption slows the Atlantic Meridional Overturning Circulation (AMOC), affecting European climate.
• Permafrost and methane: Permafrost in the Arctic contains vast stores of organic matter. As it melts, organic decomposition releases methane (a potent greenhouse gas). This is a positive climate feedback loop.
• Antarctic ice and sea levels: Unlike floating Arctic ice, Antarctic ice is land-based. Its melting adds new water to the oceans, significantly raising sea levels. The IPCC projects up to 1.1 metre of sea level rise by 2100 under high emission scenarios.

The critical distinction: Arctic sea ice melting does NOT directly raise sea levels; Antarctic land ice melting DOES.

Static linkage: Cryosphere, climate change, ocean circulation.

GS area: Geography (world)

Vietnam's land borders and their geopolitical significance:

• Northern border: China (1,281 km). The 1979 Sino-Vietnamese War was fought along this border.
• Western borders: Laos (2,130 km) and Cambodia (1,228 km).
• Eastern coast: South China Sea, over which Vietnam has territorial disputes with China, particularly over the Paracel and Spratly Islands.
• Capital: Hanoi. Largest city: Ho Chi Minh City (formerly Saigon).
• Geography: Long and narrow country (S-shaped) running along the eastern edge of the Indochinese Peninsula.
• Typhoon vulnerability: Vietnam sits in the typhoon belt. Typhoon Yagi (2024) was Asia's strongest storm of the year.

Static linkage: Southeast Asian geography, South China Sea disputes.

GS area: Science (evolution, biodiversity)

A well-preserved fossil from Australia's Gogo Formation prompted scientists to re-evaluate the Coelacanth's classification as a "living fossil."

• Coelacanth: A genus of large, ocean-dwelling fish. Long thought to have gone extinct 66 million years ago (with the dinosaurs), it was rediscovered alive in 1938 off the coast of South Africa.
• Two living species: Latimeria chalumnae (Western Indian Ocean, near Comoros Islands) and Latimeria menadoensis (Indonesian).
• "Living fossil" debate: The term implies the organism has not evolved. The new Australian fossil evidence and genetic analysis of living Coelacanths shows their DNA has indeed changed, challenging the label.
• Evolutionary significance: Coelacanths are closely related to the ancestors of tetrapods (four-limbed vertebrates, including humans). Their lobed fins are structurally similar to tetrapod limbs.
• Existence: Coelacanths have existed for over 410 million years.

Static linkage: Evolution, biodiversity, marine biology.

GS area: Economy (competition law), Governance

The Competition Commission of India (CCI) found Amazon and Flipkart in violation of competition laws.

• Violations identified:
  • Preferential treatment to selected sellers (deep discounts on partner brands).
  • Exclusive product launches for specific sellers on the platform.
  • Warehousing and marketing services at minimal cost to preferred sellers.
• CCI's role: The CCI is the statutory competition regulator under the Competition Act 2002. It prevents anti-competitive practices and abuse of dominant market position.
• E-commerce context: Both Amazon India and Flipkart operate as marketplace platforms but also have indirect stakes in key sellers on their platforms. The CCI found this created market distortions.
• Press Note 2: FDI policy in e-commerce requires platforms to treat all sellers equally. The CCI findings are consistent with this constraint.

Static linkage: Competition law, CCI, e-commerce regulation.

• Mini-moon 2024 PT5: A small asteroid (approximately 33 feet) from the Arjuna asteroid belt was temporarily captured by Earth's gravity in September 2024, following a horseshoe-shaped path. Discovered by NASA's ATLAS (Asteroid Terrestrial-impact Last Alert System). Not a true satellite; left Earth's influence within weeks.
• Kleptoparasitism: Food theft among seabirds (frigatebirds, skuas) where one species forces another to regurgitate prey. A study by UNSW Sydney linked kleptoparasitism to H5N1 avian influenza transmission through saliva-coated food during migratory journeys.