1. EUCALYPTUS (Syllabus: GS Paper 3 – Env and Eco)

Context: Recently, the Kerala government authorized the Kerala Forest Development Corporation to plant eucalyptus trees for financial sustenance in 2024-2025, prompting environmentalist protests over potential negative impacts on forests and increased human-animal conflicts.

Eucalyptus

• About: It is cultivated in almost all states and Union territories of India, and the most suited variety from the 700 available species are picked according to the region of cultivation.
• Major Production: Andhra Pradesh and Telangana, Tamil Nadu, Punjab, Haryana are few of the states which produce the bulk of eucalyptus in the country which suffices the demands of the timber, pulp and paper industries.

oHowever, Karnataka in 2017, banned eucalyptus

• Nature: They can be highly competitive with other plant species and are often dominant in ecosystems where they grow.
• Origin of Eucalyptus: These species are native to Australia and nearby islands, primarily found on the Australian continent itself.
• Uses: Many medicines to treat coughs and the common cold contain eucalyptus.

Eucalyptus Plantations

• Rotation Age of Plantations

oEucalyptus Plantations: Eucalyptus plantations have a rotation age of nine years.

oAcacia auriculiformis Trees: Acacia auriculiformis trees have a rotation age of eighteen years.

oAcacia mangium Trees: Acacia mangium trees have a rotation age of seven years.

• Approval by Ministry: Plantations are felled at the end of each cycle, with approval from the Union Ministry of Environment, Forests, and Climate Change.
• Management Plan Species: Clear-felled plantations are replanted with species listed in a management plan.

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2. CUBESATS (Syllabus GS Paper 3 – Sci and Tech)

Context: NASA recently launched one of two climate CubeSats from Māhia, New Zealand, to measure heat radiation from the Arctic and Antarctica and its impact on Earth's climate.

CubeSats

• About: These are essentially miniature satellites with a basic design of a 10 cm x 10 cm x 10 cm cube, also known as "one unit" or "1U."
• Size and Weight: Each unit of a CubeSat is just a little bigger than a Rubik’s cube and weighs no more than 1.33 kg.
• Configurations: Depending on the mission, CubeSats can be configured in sizes of 1.5, 2, 3, 6, and 12 units (U), according to NASA.
• Origin: CubeSats were first developed in 1999 by California Polytechnic State University at San Luis Obispo (Cal Poly) and Stanford University as educational tools.
• PREFIRE Satellites: Each of the PREFIRE satellites is a 6U CubeSat.

oIt is a mission aimed at studying heat emissions at the Earth's poles to understand their role in global climate change.

• Orbit: The two PREFIRE satellites will be placed in a near-polar orbit, a type of low Earth orbit, at an altitude of about 525 kilometres.
• Significance: CubeSats will measure the amount of far-infrared radiation trapped by atmospheric water vapour and clouds at the poles and how this influences the greenhouse effect in the region.

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3. DHOLE (Syllabus: GS Paper 3 – Env and Eco)

Context: The dhole has recently begun its comeback in Nepal, where it had been locally extinct for over a decade.

Dhole

• About: is a wild carnivorous animal, belonging to the family Canidae and the class Mammalia.
• Scientific name: Cuon alpinus
• Common Names: They are also known as Asian wild dogs.
• Habitat: Dholes occurred throughout southern Russia, central Asia, south Asia, and southeast Asia.
• Current Distribution: Recent research shows they are now restricted to south and southeast Asia, with the northernmost populations in China.
• Distribution in India: In India, dholes are found in three main clusters: the Western and Eastern Ghats, the central Indian landscape, and North East India.
• Conservation Efforts in India: Karnataka, Maharashtra, and Madhya Pradesh rank high in the conservation of the endangered dhole, as per a 2020 study.
• Ecological Role: Dholes play a crucial role as apex predators in forest ecosystems.
• Conservation Status

oIUCN Red List: Endangered.

oCITES: Listed in Appendix II.

oWildlife Protection Act, 1972: Included in Schedule II.

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4. ZERO DEBRIS CHARTER (Syllabus: GS Paper 3 – Economy)

Context: Recently, twelve nations affirmed their commitment to the long-term sustainability of human activities in Earth orbit by signing the Zero Debris Charter at the ESA/EU Space Council.

Zero Debris Charter

• Introduced by: European Space Agency (ESA), was unveiled at the ESA Space Summit in Seville meeting in November 2023.
• ESA Member States' Encouragement: The Charter responds to ESA Member States' encouragement for the agency to adopt a "Zero Debris" approach for its missions and to advocate similar strategies among partners and other space actors.
• Global Collaboration for Sustainability: It stands as the pioneering initiative uniting diverse space actors worldwide, aiming to eliminate space debris by 2030 and ensure the long-term sustainability of space activities.
• Guiding Principles: The Charter integrates comprehensive guiding principles and achievable yet ambitious technical targets, forming the basis of a robust Zero Debris roadmap to drive global efforts in space debris mitigation and remediation.
• Non-Legally Binding Agreement: While non-legally binding, the Charter cultivates a proactive community committed to collectively defined objectives for 2030, fostering collaboration among stakeholders.
• Specific Targets: Charter include maintaining a mission's space debris generation probability below 1 in 1,000 per object and achieving a 99% success rate for post-mission disposal, supplemented by transparent information sharing and space traffic coordination.
• Focus Areas for Implementation: To realize the Charter's objectives, ESA emphasizes the development of groundbreaking technologies for satellite end-of-life disposal, in-orbit servicing, and active debris removal, alongside collaboration with regulatory institutions.

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5. AMAZON RAINFORESTS (Syllabus: GS Paper 1 – Geography)

Context: The recent study, "Critical Slowing Down of the Amazon Forest After Increased Drought Occurrence," noted that between 2001 and 2019, the Amazon experienced three "one-in-a-century" droughts, with climate change likely to intensify these events.

Amazon Rainforests

• Largest Rainforest: The Amazon is the world's largest rainforest, surpassing the combined size of the next two largest rainforests in the Congo Basin and Indonesia.
• Distribution: The majority of the forest, 60%, is in Brazil, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Bolivia, Ecuador, French Guiana, Guyana, Suriname, and Venezuela.
• Bounded by:

oThe Guiana Highlands to the north,

oAndes Mountains to the west, 

oBrazilian central plateau to the south, 

oAtlantic Ocean to the east.

• Coverage: Approximately 6.9 million square kilometers, the Amazon Basin is equivalent in size to the contiguous United States and spans about 40% of the South American continent.
• Vegetation: Many species of myrtle, laurel, palm, and acacia, as well as rosewood, Brazil nut, and rubber tree
• Major wildlife: Jaguar, manatee, tapir, red deer, capybara and many other types of rodents,
• National Parks: Yasuni National Park (Ecuador), Mamiraua Sustainable Development Reserve (Brazil), Tumucumaque National Park (Brazil), Amacayacu National Natural Park (Colombia) etc.

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6. SUN’S MAGNETIC FIELD (Syllabus: GS Paper 3 – Sci and Tech)

Context: Scientists have believed the Sun’s powerful magnetic field, responsible for solar storms that impact Earth, originated deep within the star.

Sun’s Magnetic Field

• About: Magnetic fields are produced in the Sun by the flow of electrically charged ions and electrons. Sunspots are places where very intense magnetic lines of force break through the Sun's surface.

oThe sunspot cycle results from the recycling of magnetic fields by the flow of material in the interior.

• Magnetic Field Generation: New research suggests the sun's magnetic field is likely generated near the top of this "ocean," less than 5% inward.
• Role of Magnetic Fields: It is driven by the sun's ever-changing field, lead to phenomena like sunspots and solar flares.
• Windy Regions and Magnetic Fields: The top 5% to 10% of the sun is ideal for magnetic field generation due to unique wind patterns.
• Significance: A better understanding of the Sun's magnetic field and its behavior will allow us to make better predictions of space weather.

Sun vs. Earth Magnetic Fields

• Origins: Sun vs. Earth Magnetic Fields The sun and Earth both generate magnetic fields through dynamo processes involving rotating conductive fluids.
• Composition: Iron vs. Ionized Gases: Earth's magnetic field arises from molten iron, while the sun's stems from hot, ionized gases.
• Reversal Frequency: Earth's magnetic field experiences reversals roughly every 200,000 to 300,000 years, whereas the sun's field flips every 11 years.

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7. KETONE (Syllabus: GS Paper 3 – Sci and Tech)

Context: The Delhi Chief Minister's recent significant weight loss and elevated ketone levels raise concerns.

Ketone

• About: Ketones are organic compounds produced during ketosis when the body breaks down fat for energy due to insufficient glucose or carbohydrates.

oThey serve as an alternative energy source, especially for the brain.

• Level of Ketone in the Body: Ketone levels increase due to factors like a low-carbohydrate or ketogenic diet, prolonged fasting, starvation, or metabolic disorders such as diabetes.

oInsufficient insulin or insulin resistance in diabetics can lead to a condition called diabetic ketoacidosis (DKA).

• Symptoms:

oEarly symptoms include dry mouth, dry skin, dehydration, headache, frequent urination, and extreme thirst.

oWithout treatment, DKA symptoms can progress rapidly within 24 hours, including nausea, vomiting, fatigue, abdominal pain, shortness of breath, confusion, and fruity-smelling breath.

• Common Treatments: It depends on the severity of ketone levels, often involving steps to lower levels at home.

oHealthcare providers may advise on insulin dosage, food and water intake, safe activity levels, and frequency of blood sugar and ketone monitoring.

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8. PPIRP (Syllabus: GS Paper 3 – Economy)

Context: The Pre-packaged Insolvency Resolution Process (PPIRP) has resulted in the full settlement of operational creditors' claims in five cases.

Pre-packaged Insolvency Resolution Process (PPIRP)

• About: PPIRP involves the negotiation of a pre-packaged plan between the debtor and its creditors before the commencement of the insolvency process.
• Introduced in: April 2021 to address the impact of the Covid pandemic on small and mid-sized companies.
• Aimed at providing tailored solutions for distressed MSMEs due to their unique business nature.
• Purpose: Provides an expedited resolution mechanism for micro, medium, and small enterprises facing financial distress.
• Process: Involves negotiation and agreement between debtor and creditors on a resolution plan before formal insolvency proceedings.

oUpon creditor approval, the pre-packaged plan is submitted to the National Company Law Tribunal (NCLT), resembling an out-of-court settlement.

oDrafting and finalization of the resolution plan precede formal initiation of the insolvency process.

oThe finalized plan, upon creditor majority approval, is presented to NCLT.

• Implementation: It is initiated voluntarily by the debtor.
• Legal Provision: It is a recent addition to the Insolvency and Bankruptcy Code, 2016 (IBC) and provides for a faster and more efficient mechanism for the resolution of corporate insolvency.
• Significance: Reduces resolution time compared to the traditional corporate insolvency resolution process, with minimal disruptions.

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9. GUIDELINES OF MCC (Syllabus: GS Paper 2 – Polity)

Context: Recently, the Supreme Court declined the ruling party's challenge against a Calcutta High Court order, barring the publication of derogatory ads targeting the opposition party.

Model Code of Conduct

• About: The MCC is a set of guidelines established by the Election Commission of India (ECI) to regulate the conduct of political parties and candidates during elections.
• Objective: The primary goal of the MCC is to ensure orderly, transparent, and peaceful campaigning, polling, and counting processes.
• Constitutional Mandate: It aligns with Article 324 of the Constitution, empowering the ECI to supervise and ensure the fairness of parliamentary and state legislative elections.
• Legal Status: The MCC was the result of a consensus among major political parties. It has no statutory backing.
• Duration: The MCC remains in effect from the announcement of the election schedule until the declaration of results.
• History: Originating from the 1960 Kerala Assembly elections, it evolved from a localized "Code of Conduct" formulated by the state administration.

Guidelines of MCC

• The MCC contains eight provisions dealing with general conduct, meetings, processions, polling day, polling booths, observers, the party in power, and election manifestos.
• Criticism of other political parties, when made, shall be confined to their policies and programme, past record and work.
• Refrain from criticism of all aspects of private life, not connected with the public activities of the lead- ers or workers of other parties.
• Criticism of other parties or their workers based on unverified allegations or distortion shall be avoided.

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10. HYDROGEN FUEL CELL (Syllabus: GS Paper 3 – Sci and Tech)

Context: The Indian Army, recently focusing on hydrogen fuel cell technology for heavy-duty e-mobility, received a state-of-the-art green hydrogen fuel cell bus from Indian Oil for use in Delhi.

Hydrogen Fuel Cell

• About: It is a device that converts the chemical energy from hydrogen into electricity through an electrochemical reaction.
• This technology involves combining hydrogen and oxygen to produce electricity, heat, and water.
• Key Component :
• Electrolyte: The fuel cell contains an electrolyte, a substance that conducts ions. Commonly used electrolytes include proton exchange membrane (PEM), phosphoric acid, molten carbonate, and solid oxide.
• Anode: Hydrogen gas is fed into the anode side of the fuel cell. At the anode, hydrogen molecules (H2) are split into protons (H+) and electrons (e-) through a process called electrolysis.
• Cathode: Oxygen from the air is supplied to the cathode side of the fuel cell. The oxygen molecules combine with electrons and protons that have traveled through an external circuit from the anode, creating water (H2O) as a byproduct.
• Electrochemical Reaction: The chemical reactions occurring at the anode and cathode generate an electric current. This electricity can be utilized to power electric vehicles, electronic devices, or provide electricity for various applications.
• Benefits: Low-to-zero emissions, High Efficiency, Reliability, Fuel Flexibility, Energy Security, Durability, Scalability and Quiet Operation.
• Applications: Hydrogen fuel cells find applications in various sectors, including transportation (fuel cell vehicles), stationary power generation, and portable electronic devices.
• hydrogen fuel cell bus: The bus has been developed by the Council of Scientific & Industrial Research (CSIR) and KPIT, an Indian Multinational Corporation.

oSignificance: It is in tune with the National Hydrogen Energy Mission.

oEnvironmentally friendly mode of transportation: The fuel cell utilises Hydrogen and Air to generate electricity to power the bus and the only effluent from the bus is water.

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