Tamil Nadu has launched a Community-based Measurement, Reporting, and Verification (CbMRV) system to build a people-led climate intelligence movement.

About CbMRV system

• Introduced: as a pilot in 2023 under the UK PACT programme.
• Concept: It empowers local communities to collect, validate, and report climate and environmental data.
• Focus: It primarily targets Blue Carbon resources like mangroves, measuring factors like pH and carbon content.
• Significance: Strengthens bottom-up climate planning, climate resilience, emission tracking under Paris Agreement, etc.

AIIMS, New Delhi, conducted India’s first clinical trial of a new and advanced stroke treatment device named the Supernova Stent.

• Stroke occurs when something blocks blood supply to part of the brain or when a blood vessel in the brain bursts.
• A stroke can cause lasting brain damage, long-term disability, or even death.

About Supernova Stent

• It works by physically capturing and removing the blood clot from a blocked cerebral artery (reperfusion).
• Its safety and high efficacy were proven in the GRASSROOT (The Gravity Stent-Retriever System for Reperfusion of Large Vessel Occlusion Stroke) Trial.

Maharashtra launched MahaCrimeOS AI to strengthen its response to rising cybercrime using artificial intelligence.

About MahaCrimeOS AI

• Platform: It is an advanced AI co-pilot system, in collaboration with Microsoft, utilizing Azure OpenAI Service.
• Objective: To streamline the workflow by analyzing vast, unstructured and multilingual data (e.g., FIRs, bank statements) and reducing investigation turnaround time by up to 80%.
• Function: It automates data extraction, guides investigators through protocols, and identifies complex crime linkages.

Vice President of India releases stamp honouring Emperor Perumbidugu Mutharaiyar II.

About Emperor Perumbidugu Mutharaiyar II

• Also known as Shatrubhayankar.
• Dynasty: Belong to the Mutharaiyar dynasty, feudatories of the Pallavas.
• Region: Ruled parts of central Tamil Nadu.
• Period: Ruled during 705 to 745 AD.
• Capital: Governed from Tiruchirappalli.
• Administration: Known for stable governance and territorial consolidation.
• Cultural Patronage: Supported temple construction, endowments, patronized Shaivya and other scholars and Tamil culture.

Thalassemia patients have welcomed the introduction of the National Blood Transfusion Bill, 2025, in Parliament.

• It is a private member Bill that aims to enact a dedicated legal framework for regulating the collection, testing, processing, storage, etc. of human blood and blood components.

About Thalassemia

• An inherited blood disorder caused by insufficient production of hemoglobin.
• Leads to fewer and short-lived red blood cells (RBCs).
• Results in anemia and reduced oxygen delivery to body tissues.
• Most people with thalassemia require regular blood transfusions to treat anaemia. 

Geminid meteor shower was seen across the world.

• The Geminids are bright and fast meteors and tend to be yellow in color.
• Geminid meteor shower peaks during mid-December each year and during its peak, 120 Geminid meteors can be seen per hour.

About Meteor

• A meteor, commonly called a “shooting star”, is formed when a meteoroid enters Earth’s atmosphere and burns due to friction.
  • Meteoroids are space rocks that range in size from dust grains to small asteroids. 
• Most meteors burn up completely before reaching the ground.
• If a meteor survives atmospheric entry and reaches the ground, it is called a meteorite.

Ponduru Khadi From Srikakulam, Andhra Pradesh gets GI tag.

About Ponduru Khadi

• It is produced mainly from short staple hill variety pest resistant cotton.
• Significance: It allows for chemical free farming.

About GI tag

• A GI is a sign used on products that have a specific geographical origin and possess qualities or a reputation that are due to that origin.
• In India, it is given under the Geographical Indications (GI) of Goods Act, 1999.

30,000 live animals were seized under Operation Thunder 2025.

About Operation Thunder

• It was coordinated by INTERPOL and the World Customs Organization (WCO), with the support of the International Consortium on Combating Wildlife and Forestry Crime (ICCWC).
• It sought to intercept and seize illegally traded wildlife and forestry commodities across the global supply chain and identify, disrupt and dismantle criminal networks involved in these types of environmental crime.

Scientists are looking to develop Lunarcrete (concrete made on the moon) for long-term lunar settlements.

About Lunarcrete

• It is a hypothetical material made from lunar regolith for construction on the moon that would be similar to concrete. 
• Objective: to reduce construction costs of building on the Moon, suitable to its low gravity and no atmosphere environment.
• Basic ingredients for Lunarcrete: same as regular concrete, i.e. aggregate, water, and cement.
  • However, getting ample water on the moon remains a challenge.