BharatNotes Overview
The polar regions — the Arctic and Antarctic — have emerged as critical arenas of geopolitical competition in the 21st century. Melting ice caps are opening new shipping routes (Northern Sea Route), exposing vast mineral and energy reserves, and raising sovereignty disputes. Meanwhile, territorial disputes and international boundary lines remain perennial topics for UPSC — from the South China Sea's nine-dash line to the Durand Line and McMahon Line affecting India's neighbourhood.
Exam Strategy: For Prelims, memorise the Arctic Council's 8 members, India's polar research stations (Maitri, Bharati, Himadri), the Antarctic Treaty year (1959), and international boundary lines. For Mains, focus on the geopolitics of the Northern Sea Route, Arctic resource competition, India's Arctic Policy (2022), and how UNCLOS governs maritime disputes.
The Arctic
Geography
| Feature | Details |
|---|---|
| Definition | Region around the North Pole, generally north of the Arctic Circle (66.5 degree N) |
| Ocean | Arctic Ocean — smallest and shallowest of the world's five oceans |
| Land masses | Parts of Russia, Canada, USA (Alaska), Norway, Denmark (Greenland), Finland, Sweden, Iceland |
| Permanent ice | Arctic sea ice is shrinking due to climate change; summer minimum extent has declined by ~13% per decade since 1979 |
| Indigenous peoples | Inuit, Sami, Nenets, Chukchi, and other Arctic-dwelling communities |
Arctic Council
The Arctic Council, established by the Ottawa Declaration in 1996, is the leading intergovernmental forum for Arctic cooperation.
| Category | Members |
|---|---|
| 8 Member States | Canada, Denmark (Greenland), Finland, Iceland, Norway, Russia, Sweden, United States |
| 6 Permanent Participants | Indigenous peoples' organisations (e.g., Inuit Circumpolar Council, Saami Council) |
| Observer States (13) | India, China, Japan, South Korea, Singapore, France, Germany, Italy, Netherlands, Poland, Spain, Switzerland, United Kingdom |
| India's observer status | Granted in 2013 at the Kiruna Ministerial Meeting |
Key Fact: All 8 Arctic Council member states have territory above the Arctic Circle. India gained observer status in 2013, joining China, Japan, South Korea, and Singapore (all also admitted in 2013). Observer states may attend meetings, propose projects, and contribute to working groups, but cannot vote.
Arctic Council — Chairmanship and Post-2022 Russia Status (important for Prelims 2027): Following Russia's invasion of Ukraine in February 2022, the other seven member states suspended participation in all Arctic Council activities. However, the Council was not dissolved. Under Norway's chairmanship (2023–25), the six working groups resumed virtual-only meetings from the second half of 2024; in-person meetings remain suspended. Russia has not been formally expelled and partially resumed virtual participation in working groups in January 2025 (Russian Foreign Ministry, TASS). Russia continues to withhold financial contributions but has not renounced membership. At the 14th Arctic Council Ministerial Meeting on May 12, 2025, Norway concluded its chairmanship and the Kingdom of Denmark (with Greenland in a prominent role) assumed the chairmanship for 2025–2027. As of May 2026, the Council has not returned to full-scale work. (Sources: Xinhua, January 2025; TASS, 2025; Arctic Council; Arctic Portal, May 2025) NATO expansion: Finland joined NATO in April 2023 and Sweden in March 2024 — all 8 Arctic Council states except Russia are now NATO members, fundamentally altering the geopolitical balance in the High North.
Northern Sea Route (NSR)
| Feature | Details |
|---|---|
| Route | Along Russia's Arctic coast, connecting the Atlantic Ocean (via the Barents Sea) to the Pacific Ocean (via the Bering Strait) |
| Distance advantage | Mumbai to Rotterdam: ~7,400 nautical miles via NSR vs ~11,200 via Suez Canal (~34% shorter) |
| Strategic significance | Reduced shipping time, fuel costs, and avoidance of chokepoints (Suez Canal, Strait of Malacca) |
| Challenges | Ice coverage for much of the year, need for icebreaker escorts, limited port infrastructure, environmental risks |
| Russia's role | Controls most of the NSR; requires advance permission for transit; investing heavily in icebreaker fleet |
| Climate change impact | Arctic ice melt is making the NSR navigable for longer periods each year |
Arctic Resource Race
| Resource | Estimated Reserves | Key Claimants |
|---|---|---|
| Oil | ~13% of world's undiscovered oil (estimated 90 billion barrels) | Russia, USA, Canada, Norway |
| Natural Gas | ~30% of world's undiscovered gas | Russia (largest Arctic gas fields), Norway |
| Minerals | Rare earth elements, zinc, nickel, platinum, diamonds | Russia, Canada, Greenland (Denmark) |
| Fisheries | Rich fishing grounds as ice retreats | All Arctic states |
UNCLOS and Arctic Claims
Under UNCLOS (United Nations Convention on the Law of the Sea), coastal states can claim:
- Territorial Sea — 12 nautical miles from baseline
- EEZ — 200 nautical miles (sovereign rights over resources)
- Extended Continental Shelf — beyond 200 nm if geological evidence supports it (under Article 76)
Russia, Canada, Denmark (via Greenland), and Norway have submitted claims to the UN Commission on the Limits of the Continental Shelf (CLCS) to extend their continental shelves in the Arctic, including claims to the Lomonosov Ridge (which Russia argues is an extension of the Siberian continental shelf).
The Antarctic
Geography
| Feature | Details |
|---|---|
| Location | Continent around the South Pole, south of 60 degree S latitude |
| Area | ~14.2 million sq km — fifth-largest continent |
| Ice coverage | ~98% covered by ice (average thickness ~2.16 km) |
| Significance | Contains ~70% of the world's fresh water (locked in ice); no permanent human population |
| Climate | Coldest, driest, and windiest continent; lowest recorded temperature: -89.2 degree C (Vostok Station, 1983) |
Antarctic Treaty System (ATS)
| Feature | Details |
|---|---|
| Antarctic Treaty | Signed on 1 December 1959 in Washington, D.C.; entered into force on 23 June 1961 |
| Original signatories | 12 nations (including USA, USSR, UK, France, Argentina, Australia, Chile, Japan, New Zealand, Norway, South Africa, Belgium) |
| Current parties | 58 nations (as of 2025; 29 Consultative Parties + 29 Non-Consultative Parties) |
| Key provisions | Antarctica to be used for peaceful purposes only; freedom of scientific investigation; no military activity, nuclear explosions, or nuclear waste disposal; territorial claims frozen |
| Consultative parties | 29 nations with voting rights (must demonstrate substantial scientific research activity); India is a Consultative Party |
Madrid Protocol (1991)
| Feature | Details |
|---|---|
| Full name | Protocol on Environmental Protection to the Antarctic Treaty |
| Signed | 1991 in Madrid; entered into force in 1998 |
| Key provision | Mining ban — prohibits all mineral resource activities in Antarctica (except scientific research) |
| Duration | Cannot be modified for 50 years from entry into force (i.e., until 2048) |
| Environmental protection | Designates Antarctica as a "natural reserve devoted to peace and science" |
| Environmental impact | All activities must undergo prior environmental impact assessment |
Exam Tip: The Madrid Protocol's mining ban is valid until at least 2048. After that, any modification requires agreement of three-quarters of the current Consultative Parties. This is a frequently tested fact — remember 1991 (signed) and 2048 (earliest review date).
India's Polar Programme
India's Antarctic Stations
| Station | Location | Established | Status |
|---|---|---|---|
| Dakshin Gangotri | Queen Maud Land, Antarctica | 1983 (India's first Antarctic station) | Decommissioned in 1988–89 (buried under ice); now a supply base |
| Maitri | Schirmacher Oasis, Queen Maud Land | 1989 | Operational year-round |
| Bharati | Larsemann Hills, Prydz Bay | 2012 | Operational year-round; built from 134 shipping containers |
India's Arctic Station
| Station | Location | Established | Details |
|---|---|---|---|
| Himadri | Ny-Alesund, Svalbard, Norway | 2008 | India's first and only Arctic research station; located 1,200 km from the North Pole |
NCPOR — National Centre for Polar and Ocean Research
| Feature | Details |
|---|---|
| Location | Vasco da Gama, Goa |
| Under | Ministry of Earth Sciences (MoES) |
| Role | Plans, promotes, and executes India's research in the polar regions (Arctic, Antarctic), the Southern Ocean, and the Himalayas |
| Expeditions | India has conducted 43+ Antarctic expeditions since 1981 |
India's Arctic Policy (2022)
| Feature | Details |
|---|---|
| Released | March 2022 |
| Title | "India and the Arctic: Building a Partnership for Sustainable Development" |
| Six pillars | Science and research, Climate and environment, Economic and human development, Transportation and connectivity, Governance and international cooperation, National capacity building |
| Key focus | Climate change research, Arctic resource assessment, Northern Sea Route potential, and strengthening India's scientific presence through Himadri |
Prelims Tip: India's three Antarctic stations — Dakshin Gangotri (1983, now decommissioned), Maitri (1989), and Bharati (2012). India's Arctic station — Himadri (2008, Svalbard, Norway). All managed by NCPOR (Goa) under MoES.
Major Disputed Territories
South China Sea — Nine-Dash Line
| Feature | Details |
|---|---|
| What | China claims "historic rights" over most of the South China Sea, demarcated by the nine-dash line (originally eleven-dash line) |
| Claimants | China, Taiwan, Vietnam, Philippines, Malaysia, Brunei |
| Key features | Spratly Islands, Paracel Islands, Scarborough Shoal |
| Strategic importance | ~$3.4 trillion in trade passes through annually; rich fisheries; potential oil and gas reserves |
| 2016 Arbitration | The Permanent Court of Arbitration (The Hague) ruled that China's nine-dash line has no legal basis under UNCLOS; China rejected the ruling |
| UNCLOS relevance | The ruling affirmed that maritime entitlements are based on UNCLOS, not historical claims |
Other Major Disputed Territories
| Dispute | Between | Key Details |
|---|---|---|
| Crimea | Russia vs Ukraine | Annexed by Russia in 2014; internationally recognised as part of Ukraine by most countries |
| Kashmir | India vs Pakistan vs China | India claims entire J&K; Pakistan controls Pakistan-occupied Kashmir (PoK); China controls Aksai Chin |
| Falkland Islands | UK vs Argentina | UK controls; Argentina claims sovereignty; 1982 Falklands War; known as Islas Malvinas in Argentina |
| Kuril Islands | Russia vs Japan | Controlled by Russia since 1945; Japan claims the four southernmost islands (Northern Territories) |
| Golan Heights | Israel vs Syria | Captured by Israel in 1967 Six-Day War; annexed in 1981; US recognised Israeli sovereignty in 2019 |
| Western Sahara | Morocco vs Sahrawi Arab Democratic Republic (Polisario Front) | Morocco controls most of the territory; UN considers it a non-self-governing territory |
| Senkaku/Diaoyu Islands | Japan vs China vs Taiwan | Administered by Japan; claimed by China and Taiwan; uninhabited rocky islands in the East China Sea |
| Taiwan Strait | China vs Taiwan | China considers Taiwan a breakaway province; Taiwan functions as independent state; major US-China tension point |
Important International Boundary Lines
| Boundary Line | Between | Key Details |
|---|---|---|
| Durand Line | Afghanistan – Pakistan | Drawn in 1893 by Sir Mortimer Durand; 2,640 km; Afghanistan does not recognise it as an official international boundary |
| McMahon Line | India – China (in Arunachal Pradesh) | Proposed by Sir Henry McMahon at the Shimla Conference in 1914; China does not accept it; basis of the India-China border dispute in the eastern sector |
| Radcliffe Line | India – Pakistan (and India – Bangladesh) | Drawn by Sir Cyril Radcliffe in 1947 for the partition of British India into India and Pakistan (West and East) |
| Line of Control (LoC) | India – Pakistan (Kashmir) | De facto border in Kashmir since the Simla Agreement of 1972; not an internationally recognised boundary |
| Line of Actual Control (LAC) | India – China | De facto border; approximately 3,488 km; not clearly demarcated; source of frequent standoffs (Doklam 2017, Galwan 2020) |
| 38th Parallel | North Korea – South Korea | Divided Korea after WWII (1945); de facto border after the Korean War (1950–53); Demilitarised Zone (DMZ) runs roughly along it |
| 49th Parallel | USA – Canada (western border) | Agreed in 1818 (Convention of 1818); one of the world's longest undefended international borders |
| 17th Parallel | Formerly North Vietnam – South Vietnam | Divided Vietnam after the Geneva Accords (1954); reunified in 1975 after the Vietnam War |
| Maginot Line | France – Germany | French fortification line built in the 1930s along the Franco-German border; bypassed by Germany in WWII via Belgium |
| Oder-Neisse Line | Germany – Poland | Post-WWII border established in 1945; defines Germany's eastern boundary with Poland |
| Hindenburg Line | Germany – France (WWI) | German defensive position in WWI (1917); also refers to the ceasefire line between India and Pakistan before 1972 (now LoC) |
Prelims Tip: Do not confuse these boundary lines — Durand Line (Afghanistan-Pakistan, 1893), McMahon Line (India-China, 1914), Radcliffe Line (India-Pakistan partition, 1947). The LAC (India-China) is distinct from the McMahon Line — the LAC is the de facto border across the entire India-China frontier, while the McMahon Line specifically refers to the eastern sector (Arunachal Pradesh).
UNCLOS — Key Provisions for Boundary Disputes
| Zone | Distance from Baseline | Rights |
|---|---|---|
| Territorial Sea | 0–12 nautical miles | Full sovereignty; innocent passage allowed for foreign ships |
| Contiguous Zone | 12–24 nautical miles | Enforcement of customs, fiscal, immigration, and sanitary laws |
| Exclusive Economic Zone (EEZ) | 0–200 nautical miles | Sovereign rights over natural resources (fishing, mining, energy); freedom of navigation for all states |
| Continental Shelf | Up to 200 nm (extendable under Article 76) | Sovereign rights over seabed and subsoil resources |
| High Seas | Beyond 200 nm (or extended shelf) | Freedom of navigation, fishing, scientific research; no state sovereignty |
Article 76 allows coastal states to claim an Extended Continental Shelf beyond 200 nm if they can prove the seabed is a natural prolongation of their land territory. This is the basis of Russia's Arctic claim over the Lomonosov Ridge and overlapping claims in the Arctic Ocean.
Frequently Asked Questions (Prelims Pattern)
| Question | Answer |
|---|---|
| How many members does the Arctic Council have? | 8 member states |
| When did India get Arctic Council observer status? | 2013 |
| Who chairs the Arctic Council (2025–2027)? | Kingdom of Denmark (with Greenland in leading role; took over May 12, 2025) |
| Name India's Antarctic research stations. | Maitri (1989) and Bharati (2012); Dakshin Gangotri (1983, decommissioned) |
| Where is India's Arctic station Himadri? | Ny-Alesund, Svalbard, Norway (est. 2008) |
| When was the Antarctic Treaty signed? | 1 December 1959 (entered into force 1961) |
| What does the Madrid Protocol ban? | Mining and mineral resource activities in Antarctica |
| Until when is the Madrid Protocol mining ban in effect? | At least 2048 (50 years from 1998 entry into force) |
| What is the nine-dash line? | China's claimed boundary over most of the South China Sea |
| What was the 2016 SCS arbitration ruling? | The nine-dash line has no legal basis under UNCLOS |
| What is the Durand Line? | Boundary between Afghanistan and Pakistan (1893) |
| What is the McMahon Line? | Boundary between India and China in the eastern sector (1914) |
| What is the 38th Parallel? | Divides North and South Korea |
| What is the 49th Parallel? | Part of the USA-Canada border |
| What is UNCLOS Article 76 about? | Extended Continental Shelf claims beyond 200 nm |
Global Strategic Chokepoints
Understanding maritime chokepoints is essential for geopolitics — control over these narrow passages confers immense strategic leverage.
| Chokepoint | Location | Connects | Strategic Significance |
|---|---|---|---|
| Strait of Hormuz | Between Iran and Oman/UAE | Persian Gulf to Gulf of Oman | ~20% of world's oil passes through; vital for energy security |
| Strait of Malacca | Between Malaysia, Singapore, and Indonesia | Indian Ocean to Pacific Ocean | ~25% of global trade; India's energy imports route |
| Suez Canal | Egypt | Mediterranean Sea to Red Sea | ~12% of global trade; opened 1869; expanded 2015 |
| Panama Canal | Panama | Atlantic Ocean to Pacific Ocean | ~5% of global trade; avoids circumnavigating South America |
| Bab-el-Mandeb | Between Yemen and Djibouti | Red Sea to Gulf of Aden | Key route between Asia and Europe via Suez; Houthi attacks (Nov 2023 – Oct 2025) disrupted global shipping; attacks paused post-Gaza ceasefire (Oct 2025) but Red Sea still not fully restored (May 2026) |
| Turkish Straits | Turkey (Bosphorus + Dardanelles) | Black Sea to Mediterranean Sea | Russia's only warm-water naval access to the Mediterranean |
| Strait of Gibraltar | Between Spain and Morocco | Atlantic Ocean to Mediterranean Sea | Controls entry to the Mediterranean |
Mains Relevance: India's energy security depends on the Strait of Hormuz and the Strait of Malacca. As of 2025, after deliberate diversification, only ~30% of India's crude oil imports transit through the Strait of Hormuz (down from ~45% earlier), per the Ministry of Petroleum & Natural Gas. The Strait of Malacca remains the key route for trade with East and Southeast Asia. The opening of the Northern Sea Route could further reduce India's dependence on these chokepoints, which is why India's Arctic Policy (2022) emphasises NSR potential.
Climate Change and Polar Regions
| Impact | Arctic | Antarctic |
|---|---|---|
| Ice loss | Arctic sea ice declining ~13% per decade (summer minimum); 2012 and 2020 saw record lows | Antarctic ice sheet losing ~150 billion tonnes per year; West Antarctic Ice Sheet most vulnerable |
| Sea level rise | Arctic ice melt contributes minimally (floating ice); Greenland ice sheet melt is significant | Antarctic ice sheet holds enough ice to raise sea level by ~58 metres if fully melted |
| Permafrost thaw | Releases methane (potent greenhouse gas); threatens infrastructure in Arctic regions | Limited permafrost; not a major concern |
| Biodiversity | Polar bears, walruses, Arctic foxes threatened by habitat loss | Penguin colonies, krill populations affected by changing ice patterns |
| Geopolitical shift | New shipping routes (NSR, Northwest Passage); resource access; sovereignty disputes intensify | Relatively stable under Antarctic Treaty; concern about post-2048 mining pressure |
Key Terms for Quick Revision
| Term | Meaning |
|---|---|
| Arctic Council | Intergovernmental forum for Arctic cooperation (8 members, est. 1996) |
| Northern Sea Route (NSR) | Shipping lane along Russia's Arctic coast connecting Atlantic and Pacific oceans |
| Antarctic Treaty (1959) | International agreement dedicating Antarctica to peaceful purposes and scientific research |
| Madrid Protocol (1991) | Protocol banning mining in Antarctica; designates it a "natural reserve devoted to peace and science" |
| NCPOR | National Centre for Polar and Ocean Research, Goa — manages India's polar research |
| Himadri | India's Arctic research station at Ny-Alesund, Svalbard (2008) |
| Maitri | India's Antarctic research station at Schirmacher Oasis (1989) |
| Bharati | India's Antarctic research station at Larsemann Hills (2012) |
| UNCLOS | United Nations Convention on the Law of the Sea — governing framework for maritime zones and rights |
| EEZ | Exclusive Economic Zone — up to 200 nm from baseline; sovereign rights over resources |
| Article 76 | UNCLOS provision allowing Extended Continental Shelf claims beyond 200 nm |
| Nine-Dash Line | China's claimed boundary in the South China Sea; ruled without legal basis by PCA (2016) |
| Durand Line | Afghanistan-Pakistan boundary (1893); not recognised by Afghanistan |
| McMahon Line | India-China boundary in eastern sector (1914); not accepted by China |
| Radcliffe Line | India-Pakistan boundary drawn during partition (1947) |
| LoC | Line of Control — de facto border between India and Pakistan in Kashmir (since 1972 Simla Agreement) |
| LAC | Line of Actual Control — de facto border between India and China; approximately 3,488 km; not clearly demarcated |
| Chokepoint | Narrow strategic waterway through which a large volume of maritime trade passes |
| Permafrost | Permanently frozen ground (at or below 0 degree C for at least two consecutive years); stores vast amounts of methane |
| Svalbard Treaty (1920) | Grants Norway sovereignty over Svalbard but allows all signatories (including India) to conduct research and economic activity |
Cross-paper relevance
- GS1 — Geography (primary) — Arctic and Antarctic physical geography; polar ice caps; permafrost; Northern Sea Route; Antarctic Treaty System
- GS2 — International relations — Arctic Council and India's Arctic Policy 2022; Antarctic Treaty (India's Maitri and Bharati stations); Russia's Arctic militarisation; China's polar ambitions
- GS3 — Climate and science: Arctic amplification; polar vortex disruption affecting Indian monsoon; Antarctic ice-sheet stability; IPCC Polar Regions report
- Essay — "The melting poles are the canary in the coal mine of climate change" (recurring)
Recent Developments (2024–2026)
Arctic Militarisation — Russia–China NSR Partnership and NATO's High North Response (2024–2025)
Russia's Northern Sea Route (NSR) logged 37.9 million tonnes of cargo in 2024 (Rosatom; record high), with Moscow actively promoting it as an alternative to Suez for China-Europe trade. In May 2024, Russia and China formally established an intergovernmental Sub-Commission on NSR Development — coordinating port infrastructure investment, digital ice-navigation data sharing, and Chinese-flagged transit expansion along the NSR. This Russia–China Arctic axis represents a direct challenge to Western maritime dominance: if the NSR becomes fully operational year-round (projected post-2030 as Arctic ice retreats), shipping distances between East Asia and Europe shrink by 30–40% compared to the Suez route. In response, Norway, Finland, and Sweden announced a trilateral military transport corridor in June 2024 to streamline NATO logistics in the High North. All 8 Arctic Council member states except Russia are now NATO members (Finland joined April 2023; Sweden joined March 2024), fundamentally altering Arctic geopolitics. India's Arctic engagement deepened: in June 2025, India signed an agreement with Kongsberg Maritime and GRSE to co-develop its first indigenous Polar Research Vessel — a major step beyond the seasonal Himadri operations at Ny-Ålesund, Svalbard. Additionally, India's Himadri station is transitioning to year-round operations, making India part of the select group conducting winter Arctic research. (Sources: Rosatom; CHNL; Drishti IAS; NCPOR, 2025)
UPSC angle: NSR as an emerging trade route, India's Arctic Policy 2022, and India's three polar stations (Himadri-Arctic, Maitri-Antarctic, Bharati-Antarctic) are standard Prelims facts. For Mains, Russia–China Arctic cooperation, all-7-non-Russia Arctic states now being NATO members, Denmark's chairmanship of the Arctic Council (2025–2027), and India's indigenous polar vessel are high-value GS2 topics.
Arctic Council — Denmark Assumes Chairmanship; Russia's Partial Resumption (2024–2025)
The Arctic Council's operational disruption following Russia's Ukraine invasion (February 2022) partially eased in 2024–25. Under Norway's chairmanship, the six standing Working Groups resumed virtual-only meetings in the second half of 2024. Russia partially resumed participation in January 2025 (Russian Foreign Ministry), though in-person meetings and full-scale work remain suspended as of early 2026. Russia has not been formally expelled and retains its membership, but has withheld financial contributions since 2022. At the 14th Ministerial Meeting on 12 May 2025, Norway formally concluded its chairmanship; the Kingdom of Denmark (with Greenland in a prominent role) assumed the chairmanship for 2025–2027. For the first time in the Council's history, Greenland is taking a leading role in the chairship programme, reflecting the growing political significance of indigenous Arctic communities and Greenland's own aspirations. The Council's operational capacity is significantly reduced — scientific cooperation (working groups on climate, biodiversity, pollution) continues virtually, while high-level diplomatic engagement is frozen. (Sources: TASS; Xinhua, January 2025; Arctic Council; Arctic Portal, May 2025; Belfer Center, 2025)
UPSC angle: The Arctic Council's structure (8 members, 6 permanent participants, 13 observers including India), India's observer status (2013), Denmark's chairmanship 2025–2027 (with Greenland), and the impact of the Russia-Ukraine conflict on polar governance are standard Prelims facts. For Mains, the "governance vacuum" created by Russia's partial isolation and what it means for Arctic science and resource management is a GS2 theme.
Antarctic Sea Ice — Four Consecutive Record Lows (2022–2025)
Antarctic sea ice reached its 2025 summer minimum on 1 March 2025 at 1.98 million km² — tying for the second lowest in the 47-year satellite record (with 2022 and 2024). The record low was set in February 2023 at 1.79 million km². The years 2022, 2023, 2024, and 2025 are now the four lowest Antarctic sea-ice minimums on record — all below 2.0 million km², a threshold not previously breached before 2022. The 2025 minimum is 860,000 km² below the 1981–2010 average. The 2024 Antarctic sea-ice winter maximum was the second lowest on record. (Sources: NSIDC; NOAA Climate.gov; Antarctic Environments Portal, 2025)
UPSC angle: Four consecutive record-low Antarctic minimums signal a structural shift in the cryosphere. West Antarctic Ice Sheet (WAIS) destabilisation could raise global sea levels by 3.3 metres — relevant for India's coastal vulnerability (Mumbai, Kolkata, Chennai) and GS3 disaster risk.
Antarctic Governance Under Pressure — ATCM-46 (India-hosted) and ATCM-47 (2024–2025)
India hosted the 46th Antarctic Treaty Consultative Meeting (ATCM-46) in New Delhi, 20–30 May 2024 — a landmark, as it was the first time India hosted the ATCM. The 47th ATCM was held in Milan, Italy, 24 June – 4 July 2025, where India participated as a Consultative Party. Both meetings reaffirmed the Madrid Protocol's mining ban and Antarctica's status as a "natural reserve devoted to peace and science." India's 45th Scientific Expedition to Antarctica (2025–26 season) operated from Bharati (Larsemann Hills, Prydz Bay) and Maitri (Schirmacher Oasis, Queen Maud Land), with NCPOR (Goa) managing ice core, atmospheric CO₂, and Southern Ocean current data — directly relevant to India's monsoon modelling and coastal vulnerability assessments. (Sources: ATCM.aq; Ministry of External Affairs; Tandfonline 2025)
UPSC angle: Antarctic Treaty (1959), Madrid Protocol (1991), India hosting ATCM-46 (2024), India's polar stations and locations, and the implications of Antarctic ice loss for sea-level rise and Indian Ocean dynamics are all high-frequency UPSC topics for Prelims 2027.
Sources: Arctic Council (arctic-council.org); Wikipedia (Arctic Council, Antarctic Treaty, Nine-dash line, Durand Line); PIB (pib.gov.in — India's polar programme, Arctic Policy 2022); NCPOR (ncpor.res.in — Himadri, Bharati, Maitri); Britannica; PCA (South China Sea Arbitration); UNCLOS text (un.org); The Arctic Institute; Insights on India (coastline revision).
