💥UPSC 2026, 2027, 2028 UAP Mentorship (March Batch) + Access XFactor Notes & Microthemes PDF

Type: India Mapping

  • Climate Change Negotiations – UNFCCC, COP, Other Conventions and Protocols

    Environment Appraisal Committee allows Great Nicobar plan to advance

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Not much

    Mains level: Paper 3- EAC allows Great Nicobar plan to advance

    About the Great Nicobar plan

    • The Environment Appraisal Committee (EAC) – Infrastructure I of the Ministry of Environment, Forest and Climate Change (MoEFCC) has flagged serious concerns about NITI Aayog’s ambitious project for Great Nicobar Island.
    • The EAC was responding to ‘pre-feasibility’ report, ‘Holistic Development of Great Nicobar Island at Andaman and Nicobar Islands’.
    • The report is prepared for the NITI Aayog by the Gurugram-based consulting agency.
    • The proposal includes an international container transshipment terminal, a greenfield international airport, a power plant and a township complex spread over 166 sq. km. and is estimated to cost ₹75,000 crore.
    • The committee has, however, removed the first hurdle faced by the project.
    • It has recommended it “for grant of terms of reference (TOR)” for Environmental Impact Assessment (EIA) studies, which in the first instance will include baseline studies over three months.

    What the EAC said

    • The committee noted that the site selection for the port had been done mainly on technical and financial criteria, ignoring the environmental aspects.
    • It has now asked for an independent study/ evaluation for the suitability of the proposed port site with specific focus on Leatherback Turtle, Nicobar Magapode and Dugong.
    • It highlighted the need for an independent assessment of terrestrial and marine biodiversity, a study on the impact of dredging, reclamation and port operations, including oil spills.
    • It has also highlighted the need for studies of alternative sites for the port with a focus on environmental and ecological impact,  analysis of risk-handling capabilities, a seismic and tsunami hazard map, a disaster management plan, an assessment of the cumulative impact, and a hydro-geological study to assess impact on round and surface water regimes.
    • The committee has also asked for details of the corporate environment policy of the implementing agency — whether the company has an environment policy, a prescribed standard operating procedure to deal with environmental and forest violations, and a compliance management system.
  • Sri Lanka’s Constitution – Strides in the Right Direction

    No mass nesting of Olive Ridley turtles at Rushikulya in Odisha this year

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Olive Ridley turtle

    Mains level: Paper 3- Mass nesting of Olive Ridley turtles

    No mass nesting this year

    • The annual spectacle of the mass nesting of millions of Olive Ridley sea turtles near the Rushikulya river mouth in Odisha is likely to be missed this year, as the time for it is almost over.
    • It’s been around one month since the mass nesting of last year.
    • If they do skip the beach, this won’t be the first time.
    • In 2002, 2007, 2016 and 2019, the turtles had not shown up at Rushikulya.
    • The Rushikulya river mouth is considered the second-biggest rookery in India after Gahirmatha.
    • Mass nesting in the Gahirmatha marine sanctuary occurred from March 9-23, 2021 and over 349,000 eggs were laid during this period.

    What could explain the miss in mass nesting

    • It is a natural phenomenon. During some years, they did not turn up for mass nesting even though a huge number had congregated in the sea.
    • Beach erosion might be one of the causes for the turtles staying away this year.
  • Global Geological And Climatic Events

    La Soufriere volcanic eruption

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: La Soufriere

    Mains level: Not Much

    Sulphur dioxide (SO2) emissions from La Soufriere volcano eruption in the Caribbean have reached all the way to India.

    Why in news?

    • Its eruption has sparked fear of increased pollution levels in the northern parts of India and acid rain.
    • Volcanic plumes can cause aviation and air quality hazards.

    La Soufriere

    • It is an active stratovolcano on the Caribbean island of Saint Vincent in Saint Vincent and the Grenadines.
    • It is the highest peak in Saint Vincent and has had five recorded explosive eruptions since 1718.

    Impact of such eruptions

    • Volcanic emissions reaching the stratosphere can have a cooling effect on global temperatures.
    • The most significant climate impacts from volcanic injections into the stratosphere come from the conversion of sulphur dioxide to sulphuric acid, which condenses rapidly in the stratosphere to form fine sulphate aerosols.
    • The aerosols increase the reflection of radiation from the Sun back into space, cooling the Earth’s lower atmosphere or troposphere.

    Try this PYQ:

    Q.Which of the following adds/add carbon dioxide to the carbon cycle on the planet Earth?

    1. Volcanic action
    2. Respiration
    3. Photosynthesis
    4. Decay of organic matter

    Select the correct answer using the code given below:

    (a) 1 and 3 only

    (b) 2 only

    (c) 1, 2 and 4 only

    (d) 1, 2, 3 and 4

  • Wildlife Conservation Efforts

    Mahendragiri Hills

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Mahendragiri Hills

    Mains level: Biosphere reserves in India

    The Odisha government has proposed a second biosphere reserve in the southern part of the state at Mahendragiri, a hill ecosystem having a rich biodiversity.

    The 5,569-square kilometre Similipal Biosphere Reserve is Odisha’s first such reserve and was notified May 20, 1996.

    Mahendragiri Hills

    • Mahendragiri is a mountain in the Rayagada subdivision of the district of Gajapati, Odisha, India.
    • It is situated amongst the Eastern Ghats at an elevation of 1,501 metres.
    • The hill and its surrounding areas are recognized as a biodiversity hot spot due to numerous medicinal plants and other species that are found here.
    • Mahendragiri is inhabited by the Soura people, a particularly vulnerable tribal group as well as the Kandha tribe.

    Try this PYQ:

    Q.From the ecological point of view, which one of the following assumes importance in being a good link between the Eastern Ghats and the Western Ghats? (CSP 2018)

    (a) Sathyamangalam Tiger Reserve

    (b) Nallamala Forest

    (c) Nagarhole National Park

    (d) Seshachalam Biosphere Reserve

    Why designate it as a biosphere reserve?

    • The area of the proposed Mahendragiri Biosphere Reserve is around 470,955 hectares and is spread over Gajapati and Ganjam districts in the Eastern Ghats.
    • The hill ecosystem acts as a transitional zone between the flora and fauna of southern India and the Himalayas, making the region an ecological estuary of genetic diversities.
    • The rich flora in Mahendragiri represents 40 per cent of the reported flora of Odisha, with around 1,358 species of plants.

    Back2Basics:  Biosphere Reserves

    • A biosphere reserve is an area of land or water that is protected by law in order to support the conservation of ecosystems, as well as the sustainability of mankind’s impact on the environment.
    • Each reserve aims to help scientists and the environmental community figure out how to protect the world’s plant and animal species while dealing with a growing population and its resource needs.
    • To carry out the complementary activities of biodiversity conservation and sustainable use of natural resources, biosphere reserves are traditionally organized into 3 interrelated zones, known as:
      1. the core area
      2. the buffer zone and
      3. a transition zone or ‘area of cooperation
  • J&K – The issues around the state

    Places in news: Chenab Arch Bridge

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Chenab Arch Bridge

    Mains level: Not Much

    A half-a-kilometre long arch, the defining feature of the world’s highest railway bridge over river Chenab, is set to be completed today.

    Chenab Arch Bridge

    • The bridge is part of an ambitious 272-km rail link project and is being constructed by the Northern Railway at an estimated cost of ₹28,000 crores.
    • The bridge will be able to withstand earthquakes with a magnitude of up to eight and high-intensity blasts.
    • The bridge, which will include a 14-metre dual carriageway and a 1.2-metre-wide central verge, will have a design speed of around 100 kilometres per hour with a lifespan of 120 years.

    Its inception

    • The preparations of the rail link began in 2002 and the initial plan was to connect Kashmir’s northernmost city Baramulla to New Delhi.
    • Work on the bridge started again in July 2017 with the aim of completing the construction by the end of 2019 but due to contractual issues in 2018, it was delayed.
    • Steel was specifically chosen for the construction of the bridge as it will make the project more economical.
    • The metal will also be able to resist temperatures of minus 20 degree Celsius and wind speeds of above 200 kilometres per hour.

    Significance

    • A railway bridge like this, with this kind of geography, has not been made anywhere in the world, according to the Railways.
    • It will symbolise the Kashmir rail link, to be ready for at least a century.
    • In other words, a train from Kanyakumari can reach all the way to Kashmir uninterrupted.
    • The cable crane that will do the job of completing the arch itself measures around 900 meters and is said to be the longest in the world, made especially for this project.
  • Indian Army Updates

    Joint Logistics Node (JLN)

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Joint Logistics Node

    Mains level: Paper 3- Joint Logistics Node

    As part of measures to boost tri-service integration and resource optimisation, Chief of Defence Staff General has operationalised the third joint logistics node (JLN) in Mumbai.

    Must read:

    Explained: How to unify defence resources

    Joint Logistics Node (JLN)

    • The Joint Operations Division (JOD) under the Headquarters Integrated Defence Staff pursued and enabled the establishment of the JLNs.
    • JLNs provide integrated logistics cover to the armed forces for their small arms ammunition, rations, fuel, general stores, civil hired transport, aviation clothing, spares and also engineering support to synergise their operational efforts.
    • The initiative would accrue advantages in terms of saving of manpower, economize utilization of resources, besides financial savings.
    • It is a very important first step in the direction of logistics integration of our three Services.
    • The government has operationalised the establishment of the JLNs in Mumbai, Guwahati and Port Blair.
  • Nuclear Energy

    Baikal Gigaton Volume Detector

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: GVD

    Mains level: Paper 3- Baikal Gigaton Volume detector

    Russian scientists have launched one of the world’s biggest underwater neutrino telescopes called the Baikal-GVD (Gigaton Volume Detector) in the waters of Lake Baikail, the world’s deepest lake situated in Siberia.

    Try this PYQ from CSP 2020:

    Q. The experiment will employ a trio of spacecraft flying in formation in the shape of equilateral triangle that has sides one million km long, with lasers shining between the craft.” the experiment in the question refers to?
    (a) Voyager-2
    (b) New horizons
    (c) LISA pathfinder
    (d) Evolved LISA

    Baikal GVD

    • The Baikal-GVD is one of the three largest neutrino detectors in the world along with the IceCube at the South Pole and ANTARES in the Mediterranean Sea.
    • The construction of this telescope, which started in 2016, is motivated by the mission to study in detail the elusive fundamental particles called neutrinos and to possibly determine their sources.
    • It will help understanding the origins of the universe since some neutrinos were formed during the Big Bang while others continue to be formed as a result of supernova explosions or because of nuclear reactions in the Sun.
    • An underwater telescope such as the GVD is designed to detect high-energy neutrinos that may have come from the Earth’s core, or could have been produced during nuclear reactions in the Sun.

    What are fundamental particles?

    • So far, the understanding is that the universe is made of some fundamental particles that are indivisible.
    • Broadly, particles of matter that scientists know about as of now can be classified into quarks and leptons.
    • Explorations has led to the discovery of over 12 such quarks and leptons, but three of these (protons, neutrons and electrons) is what everything in the world is made up of.
    • Protons (carry a positive charge) and neutrons (no charge) are types of quarks, whereas electrons (carry a negative charge) are types of leptons.
    • These three particles make what is referred to as the building block of life– the atom.

    Why do scientists study fundamental particles?

    • Studying what humans and everything around them is made up of gives scientists a window into understanding the universe a better way.
    • This is one reason why scientists are so keen on studying neutrinos (not the same as neutrons), which are also a type of fundamental particle.
    • Fundamental means that neutrinos, like electrons, protons and neutrons cannot be broken down further into smaller particles.

    So where do neutrinos fit in?

    • What makes neutrinos especially interesting is that they are abundant in nature, with about a thousand trillion of them passing through a human body every second.
    • In fact, they are the second most abundant particles, after photons, which are particles of light.
    • But while neutrinos are abundant, they are not easy to catch, this is because they do not carry a charge, as a result of which they do not interact with matter.
    • One way of detecting neutrinos is in water or ice, where neutrinos leave a flash of light or a line of bubbles when they interact.
    • To capture these signs, scientists have to build large detectors.

    Back2Basics: Lake Baikal

    • Lake Baikal is a rift lake located in southern Siberia, Russia, between Irkutsk Oblast to the northwest and the Buryat Republic to the southeast.
    • It is the largest freshwater lake by volume in the world, containing 22 to 23% of the world’s fresh surface water.
    • With a maximum depth of 1,642 m it is the world’s deepest lake.
    • It is among the world’s clearest lakes and is the world’s oldest lake, at 25–30 million years. It is the seventh-largest lake in the world by surface area.
    • Lake Baikal formed as an ancient rift valley and has a long, crescent shape, with a surface area of 31,722 km2 (12,248 sq mi), slightly larger than Belgium.
    • The region to the east of Lake Baikal is referred to as Transbaikalia or as the Transbaikal and the loosely defined region around the lake itself is sometimes known as Baikalia.
    • UNESCO declared Lake Baikal a World Heritage Site in 1996.
  • Contention over South China Sea

    Places in news: Whitsun Reef

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Whitsun Reef

    Mains level: South China Sea Row

    China’s aggressive expansion in the South China Sea has found a new ground, Whitsun Reef, where 220 Chinese vessels are currently anchored under the Philippines’ Exclusive Economic Zones (EEZ).

    Once again, the South China Sea finds itself closer to becoming a security flashpoint amidst rising concerns over a military conflict.

    Also, try this:

    Q.Recently, Senkaku Island was in the news. Where is it located?

    a) South China Sea

    b) Indian Ocean

    c) East China sea

    d) Red sea

    Whitsun Reef

    • Whitsun Reef is a reef at the northeast extreme limit of the Union Banks in the Spratly Islands of the West Philippine Sea.
    • It is the largest reef of the Union Banks.
    • The reef is V-shaped with an area of about 10 sq. km.
    • Until at least the 1990s it was submerged most of the time and was visible above the water only during the low tide, at other times the reef could be detected due to the pattern of breaking waves.
    • At the end of the 20th-century small sand dunes had developed on the reef making a territorial claim possible (an International Court of Justice judgment in 2012 stated that “low-tide elevations cannot be appropriated”).
    • The development of the dunes could have occurred naturally, but the rumours had it that the island was being built up by Vietnam and China.

    Territorial disputes

    • As of 2016, the reef was unclaimed, the reports to the contrary (Chinese control) were based on confusion.
    • However, due to the reef’s strategic importance, it was expected that the reef would be occupied “soon”.
    • On 21 March 2021, about 220 Chinese fishing ships were moored at the reef ostensibly taking shelter due to the sea conditions.

    Why is the Philippines concerned?

    • The Philippines considers the reef to be a part of its exclusive economic zone and continental shelf and protested the Chinese presence.
    • Currently, Philippine military aircraft and navy are monitoring the situation daily, and China has been warned that there will be an increased military presence to conduct ‘sovereignty patrols’.
    • If China is successful with its moves, the Philippines may lose another fishing ground, similar to what happened in 2012 when China took control of Scarborough Shoal.

    The larger dispute

    • China and the Philippines, along with other Southeast Asian countries, have long been part of disputes over sovereign claims over the region’s islands, reefs and seabeds.
    • A third of the world’s maritime trade travels through the South China Sea annually.
    • The seabeds here are believed to be reserves of oil and natural gas while being home to fisheries essential for the food security of millions in South Asia.
    • The majority of the disputes concern the lack of adherence to the international ‘Exclusive Economic Zones’ which stretch up to 200 nautical miles from the coast of any state.
    • China, especially, has been notorious for disregarding the law on various occasions.

    What does China have to say?

    • On the present matter, the Chinese have reiterated that the vessels are mere fishing boats seeking shelter from unruly weather, though no bad weather has been reported in the area.
    • It is also unlikely that fishermen would have the financial capital to remain stationary for weeks on end.
    • Experts say through their present occupation, China might be looking to create a civilian base on the reef, an artificial island or even just control the airspace.
    • It is widely assessed that Philippines’s soft approach has further strengthened China’s ambitions in the South China Sea.

    Back2Basics: South China Sea Row

    • It is a dispute over territory and sovereignty over ocean areas, and the Paracels and the Spratlys – two island chains claimed in whole or in part by a number of countries.
    • China, Vietnam, the Philippines, Taiwan, Malaysia and Brunei all have competing claims.
    • Alongside the fully-fledged islands, there are dozens of rocky outcrops, atolls, sandbanks and reefs, such as the Scarborough Shoal.
    • China claims by far the largest portion of territory – an area defined by the “nine-dash line” which stretches hundreds of miles south and east from its most southerly province of Hainan.
    • Beijing says its right to the area goes back centuries to when the Paracel and Spratly island chains were regarded as integral parts of the Chinese nation, and in 1947 it issued a map detailing its claims.
    • It showed the two island groups falling entirely within its territory. Those claims are mirrored by Taiwan.

    Spat over Chinese claims

    • China has backed its expansive claims with island-building and naval patrols.
    • The US says it does not take sides in territorial disputes but has sent military ships and planes near disputed islands, calling them “freedom of navigation” operations to ensure access to key shipping and air routes.
    • Both sides have accused each other of “militarizing” the South China Sea.
    • There are fears that the area is becoming a flashpoint, with potentially serious global consequences.
  • Swachh Bharat Mission

    Sabarmati Riverfront Development Project

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Sabarmati River

    Mains level: Riverfront development and its economic potential

    The Ahmedabad Municipal Corporation, in its draft budget for 2021-22, has set aside Rs 1050 crore for the Sabarmati River Front Development phase 2, work on which is to begin soon.

    Rs 1050 crore fund! See how rich even the Municipal Corporations in India are!

    Sabarmati Riverfront Development Project

    • The SRDP is an environmental improvement, social uplift and urban rejuvenation project that will renew Ahmedabad.
    • The project is being developed by the Sabarmati Riverfront Development Corporation Ltd. (SRFDCL), a company wholly owned by the Ahmedabad Municipal Corporation.
    • The project will reclaim approximately 200 hectares of land from the riverbed.
    • To reclaim the land, protect low lying developments from floods, and prevent erosion of the river banks, retaining walls have been built on both sides of the river.
    • Since Sabarmati is a seasonal river, water is channelled into the river from the Narmada canal, which intersects the river upstream from Ahmedabad and is retained in the river using the Vasna Barrage which is located downstream.

    Significance of the project

    • The reclaimed land will make Ahmadabad’s riverfront, a public asset.
    • The project will provide Ahmedabad with 11.5 km long pedestrian promenades at the water’s edge along both the banks of the river.
    • In addition, many new public facilities will be built on the reclaimed land: cultural centres, museums, sports facilities, trade fair grounds and open-air markets.
    • A small portion of the reclaimed land will be sold for private commercial and residential developments.
    • The project has won Prime Minister’s National Award for Excellence in Urban Planning and Design in the year of 2003.

    Also, revise the concept of Water Divide from your NCERTS or refer to this link: https://www.ncert.nic.in/ncerts/l/iess103.pdf


    Back2Basics: Sabarmati River

    • Sabarmati is one of the major west-flowing rivers in India. Being a rain-fed river it runs dry most of the year.
    • It originates in the Aravalli Range of the Udaipur District of Rajasthan and meets the Gulf of Khambhat of the Arabian Sea after travelling 371 km in a south-westerly direction across Rajasthan and Gujarat.
    • 48 km of the river length is in Rajasthan, while 323 km is in Gujarat.
    • There are several reservoirs on Sabarmati and its tributaries. The Dharoi dam is located on the main river. Hathmati dam, Harnav dam and Guhai dam are located on the tributaries.
  • Traffic jam in the Suez Canal

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Suez Canal

    Mains level: Not Much

    A massive cargo ship has turned sideways in Egypt’s Suez Canal, blocking traffic in a crucial East-West waterway for global shipping.

    Try this PYQ:

    Q.Between India and East Asia, the navigation time and distance can be greatly reduced by which of the following?

    1. Deepening the Malacca straits between Malaysia and Indonesia.
    2. Opening a new canal across the Kra isthmus between the Gulf of Siam and Andaman sea.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 only

    (c) Both 1 and 2

    (d) Neither 1 nor 2

    Suez Canal

    • The Suez Canal is an artificial sea-level waterway in Egypt, connecting the Mediterranean Sea to the Red Sea through the Isthmus of Suez; and dividing Africa and Asia.
    • Constructed by the Suez Canal Company between 1859 and 1869, it officially opened on 17 November 1869.
    • The canal was earlier controlled by British and French interests in its initial years but was nationalized in 1956 by Egypt’s then leader Gamal Abdel Nasser.
    • It extends from the northern terminus of Port Said to the southern terminus of Port Tewfik at the city of Suez.
    • Its length is 193.30 km including its northern and southern access channels.

    Its significance

    • The Suez Canal provides a crucial link for oil, natural gas and cargo being shipping from East to West.
    • It provides a major shortcut for ships moving between Europe and Asia, who before its construction had to sail around Africa to complete the same journey.
    • Around 10 % of the world’s trade flows through the waterway and it remains one of Egypt’s top foreign currency earners.
    • As per a report, the canal is a major source of income for Egypt’s economy, with the African country earning $5.61 billion in revenues from it last year.