UPSC Current Affairs 27 September 2026

• Total Project Cost: The project involves a total capital investment of ₹2,300 crore.
• The Joint Venture: It is being developed through a collaboration between the Deendayal Port Authority (DPA) and Namrup-based Assam Petro-Chemicals Ltd. (APCL).
• Equity Sharing Ratio: The capital contribution stands at 76:24 between DPA and APCL.
• DPA's Contribution: DPA is providing ₹567.32 crore in equity capital, alongside 75 acres of land, desalinated water, and green hydrogen power.

• Total Capacity: The plant is engineered to produce 150 tonnes per day (TPD) of e-methanol.
• Phase I: Targets 50 TPD capacity with an investment of ₹1,200 crore, slated for completion by January 2027.
• Phase II: Targets an additional 100 TPD capacity with an investment of ₹1,100 crore, slated for completion by March 2027.

• Eco-Friendly Input: The facility will synthesise e-methanol using renewable power, water, and biogenic CO₂.
• Green Molecules Value Chain: The infrastructure is strategically designed to handle everything from green hydrogen production to final transport and storage of green molecules at the port.

• Targeting Global Trade Routes: The fuel will primarily supply cargo vessels plying the Asia-Europe International Trade Corridor (one of the world's busiest routes), transforming Kandla into a green refuelling hub akin to Singapore or Rotterdam.
• Employment: The plant is projected to generate over 3,500 direct and indirect jobs, boosting local ancillary industries.
• National Goals: It directly supports India's broader target to achieve Net Zero emissions by 2070 and advances the National Green Hydrogen Mission.

• Researchers & Location: Published by researchers from Sidho-Kanho-Birsha University from middle Siwalik sediments in Himachal Pradesh.
• Maceration Process: Scientists used gentle acids to dissolve surrounding rock and isolate the leaf cuticle.
• Microscopic Reveal: Intricate dark-brown structures of the fungus were revealed under a high-powered light microscope.

• Classification & Morphology: An epifoliar ascomycotal fossil fungal species featuring dark-brown, reticulate network arrangements, larger cells, and circular fruiting bodies.
• Scientific Name: miocenicus references the Late Miocene epoch when it thrived.

• Taxonomic Kinship: Shows similarities to modern Vizellopsis and Vizella genera.
• Distinction from Relatives: Differs from Vizellopsidites siwalika by displaying a looser, net-like framework and larger cells instead of dense mats.

• Climate Marker: Acts as a sensitive climate indicator, proving that the Western Himalayas shifted from a sweltering tropical ecosystem to a cooler alpine environment.

• Molecular "Find-and-Replace": It functions like a digital text editor but for chemistry, enabling synthetic chemists to insert, delete, or swap single atoms inside a pre-existing, fully assembled molecular skeleton.
• No Peripheral Disruption: The modification changes the core ring framework of the molecule directly without disturbing the surrounding functional groups or outer branches.
• Core Mechanisms: The logic of single-atom editing is generally classified into three types:
  1. Ring Expansion: Transforming an n-membered ring to an n+1 ring by inserting an atom.
  2. Ring Contraction: Reducing an n-membered ring to an n-1 ring by deleting an atom.
  3. Atom Transmutation (Swapping): Directly exchanging one core atom (e.g., Carbon or Oxygen) for another (e.g., Nitrogen).

• Old Process (De Novo Synthesis): Historically, if a medicinal chemist wanted to test how replacing a single atom affected a drug candidate, they had to destroy the molecule and restart a complex, multi-step synthesis from scratch.
• New Paradigm: This technique treats molecular skeletons as programmable, editable frameworks, cutting research timelines down from weeks to just a day or two.

• Ubiquity of Nitrogen: Roughly 85% of FDA-approved drugs contain one or more nitrogen atoms, making nitrogen-containing ring structures (heterocycles) vital to medicine.
• Property Tuning: Swapping a carbon atom for a nitrogen atom fundamentally alters the drug molecule’s polarity, solubility, metabolic stability, and hydrogen-bonding capabilities.
• Enhanced Efficacy: A single nitrogen switch can drastically increase a drug's bioavailability or give it the specific ability to cross the blood-brain barrier.

• Streamlining Drug Discovery: Chemists can rapidly screen and test minor variants of drug candidates to immediately evaluate how atom placement impacts biological efficacy.
• Late-Stage Diversification: It allows modifications at the final stages of synthesizing complex, highly valuable molecules.
• Green Chemistry: By bypassing multi-step synthesis routes, the process drastically reduces hazardous chemical waste, solvent usage, and overall environmental footprints.
• Accessing Rare Compounds: Enables the affordable generation of highly complex chemical structures (like turning an $11/g compound into an elusive $2,000/g pyrrole framework through a single-atom swap).

• Translating Commitments to Action: The primary aim is to accelerate the implementation of national targets under the Global Cooling Pledge (initially established at COP28).
• Combating Rising Heat Risks: It seeks to protect vulnerable communities from extreme heat and reduce reliance on mechanical cooling as the global stock of conventional cooling appliances is projected to triple by 2050.
• Focus Areas: The award celebrates cross-sectoral actions targeting energy-efficient technologies, nature-based solutions (like urban forests and green roofs), and passive cooling architectural design.

• Singapore: Honoured for its exemplary national leadership in implementing passive cooling strategies and pioneering long-term urban heat resilience infrastructure.
• United Arab Emirates (UAE): Recognized for its leadership in advancing large-scale district cooling systems and successfully embedding cooling sustainability into global climate and development policies.
• Dong Mingzhu (Chairperson of Gree Electric Appliances): Awarded under the Individual Leader category for spearheading the engineering of ultra-efficient, low-carbon cooling options, specifically their Zero Carbon Source air-conditioning system.

• What it is: A global multi-stakeholder platform driving system-level change to deliver efficient, climate-friendly cooling solutions.
• Launch Year: It was established in 2019 as a flagship initiative under the UN Secretary-General’s Climate Action Summit.
• Network: It brings together over 250 actors, including national governments, municipal authorities, businesses, cities, and financial institutions.
• Global Alignment: Its goals are closely structured around the Paris Agreement, the Kigali Amendment to the Montreal Protocol, and the UN 2030 Agenda for Sustainable Development.

• The "Enemy State" clauses in the UN Charter are in the news because Japan’s Prime Minister, Sanae Takaichi, forcefully demanded their immediate deletion during her address to the 81st session of the United Nations General Assembly (UNGA).
• The label has recently been used by China and Russia to attack Japan’s plans to raise defence spending.

• Definition: Per Article 53(2) of the UN Charter, an "enemy state" is defined as any nation that was an enemy of a Charter signatory during World War II.
• Targeted Nations: It specifically targets the former Axis Powers and their allies, most notably Japan, Germany, and Italy.
• The Allied Loophole: The provisions grant the victorious Allied Powers the legal right to take military or preventive action against these defeated WWII nations without requiring prior approval from the UN Security Council (UNSC).

• Article 53(1): Permits regional arrangements to launch enforcement actions against an "enemy state" without seeking UNSC authorization.
• Article 107: Validates any wartime or post-war enforcement actions taken or authorized by Allied governments against a WWII enemy state, completely bypassing regular UN intervention rules.
• Article 77(1)(b): Outlines the administration of the UN "trusteeship system" over territories that were detached from enemy states after the war.

• Outdated Anachronism: Japan argues the clauses are entirely obsolete given that the targeted nations have been peaceful, law-abiding UN members for decades (Japan joined in 1956).
• Geopolitical Weaponization: The clauses are no longer just a legal technicality. China has actively defended the provisions as a mechanism to prevent "militarism", while Russia has used the text to rhetorically counter Japan's claims over the disputed southern Kuril Islands.
• UN Reform Linkage: Prime Minister Takaichi framed the deletion as part of a broader, essential package for UN Security Council Reform to modernize a global architecture frozen in 1945.

• Declared Obsolete but Untouched: The UNGA formally recognized the clauses as "obsolete" in a 1995 resolution, and world leaders committed to deleting them during the 2005 World Summit. However, a resolution does not automatically rewrite the foundational treaty.
• The Strict Amendment Hurdle: Under Article 108 of the Charter, any physical amendment requires a two-thirds majority vote in the General Assembly plus domestic ratification by two-thirds of UN member states.
• The P5 Veto Power: Crucially, any amendment must be approved by all five permanent members of the UNSC (P5)—the US, UK, France, Russia, and China. Because major powers (particularly China and Russia) are reluctant to alter the Charter or open the door to wider structural changes that could diminish their veto influence, formal deletion remains stalled.

• “New X-Ray Clues” is in the news due to a breakthrough astronomical study published on September 25, 2026, which revealed how supermassive black holes power the universe's most energetic active galaxies.
• Led by astronomers at India's Aryabhatta Research Institute of Observational Sciences (ARIES) in Nainital, the study uncovered hidden structural components of TeV blazars—extremely bright galactic centers that shoot intense radiation directly toward Earth.

• The Research Leads: The study was conducted by researchers Riya Bhowmick and Alok C. Gupta from ARIES, an autonomous institute operating under India's Department of Science and Technology (DST).
• The Targets of Study: Scientists analyzed 13 sets of X-ray observations across four prominent TeV blazars: Mrk 421, Mrk 501, PG 1553+113, and PKS 2155-304.
• Space Telescope Data: The team utilized data gathered by two of NASA’s flagship space observatories: NICER (Neutron star Interior Composition Explorer) and NuSTAR (Nuclear Spectroscopic Telescope Array). Space telescopes are essential for this research because the Earth’s atmosphere blocks out cosmic X-rays.
• The Blazar Breakthrough: Blazars feature relativistic jets oriented directly at Earth, causing their bright jet emissions to normally mask everything else. However, by observing Mrk 421 and Mrk 501 during moderate-to-low activity states, the astronomers detected a secondary, lower-energy X-ray spectral component.
• Proving the Accretion Flow: This newly detected component confirmed that when a blazar's jet dims, thermal and non-thermal radiation from the accretion disk (the swirling matter feeding the supermassive black hole) becomes visible. This provided the first-ever direct evidence of an accretion disk contribution in the blazar Mrk 501.
• Unresolved Anomalies: The analysis of Mrk 421 also exposed a minor localized energy excess (a Gaussian feature) in its spectrum, which scientists suspect could be tied to magnetic activity near the base of the black hole's jet or potential instrumental artifacts.
• Broader Impact: These findings advance human understanding of high-energy physics, helping researchers decipher exactly how supermassive black holes interact with matter and launch universe-spanning particle jets.

• Mechanism of Action: Juvmo works by mimicking dopamine, a vital brain chemical that naturally decreases in individuals suffering from Parkinson's disease, thereby improving movement control.
• Clinical Basis: The FDA approval was secured after successful late-stage clinical trials demonstrated a significant reduction in tremors, stiffness, and balance issues.
• Market Projections: Wall Street analysts expect a gradual commercial rollout through the third quarter of 2026 as insurance and Medicare coverage negotiations finalize. AbbVie aims for a combined $5 billion in Parkinson's disease drug sales.
• Side Effects: The most common adverse effects documented during the trial phase include nausea, headache, and dizziness.

• Efficacy Rates: In its latest clinical trials, etentamig achieved an Objective Response Rate (ORR) of 74%—meaning the cancer shrunk or completely disappeared in nearly three-quarters of patients. This vastly outpaced the 45.7% response rate from standard healthcare treatments.
• Survival Metrics: The drug successfully reduced the risk of disease progression or death by 60%. At the 12-month milestone, 87.9% of patients treated with etentamig were alive, compared to only 72% in the standard care control group.

• Antibody-Drug Conjugates (ADCs): AbbVie is focusing heavily on ADCs, which act like guided missiles by binding directly to cancer cell proteins to deliver cell-destroying drugs. Notable pipeline drugs include Emrelis (lung cancer) and pivekimab sunirine (rare blood cancer under FDA review).
• Acquisition Spree: To bolster its next-generation portfolio, AbbVie completed a $10.9 billion acquisition of Apogee Therapeutics for eczema treatments, alongside recent acquisitions of Aliada Therapeutics ($1.4B) and Gilgamesh Pharmaceuticals ($1.2B).

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