Mppsc current affairs

🔆 Koeppen’s Climatic Classification of India 📍 Key Concepts ✅ Developed by Wladimir Koeppen — based on annual mean temperature and precipitation ✅ Links vegetation distribution with climate types ✅ Uses letter codes to classify major climate zones based on seasonality 📍 Major Climatic Types in India ✅ (Am) Monsoon with short dry season – West coast (e.g., Goa) ✅ (As) Monsoon with dry summer – Coromandel coast ✅ (Aw) Tropical Savanna – Most of Peninsular India ✅ (BShw) Semi-arid Steppe – Interior Deccan, Gujarat, Rajasthan, Punjab, J&K ✅ (BWhw) Hot Desert – West Rajasthan only ✅ (Cwg) Monsoon with dry winters – Northern Plains ✅ (Dfc) Cold-humid winter with short summer – Northeast India ✅ (E) Polar Climate – Upper Himalayas ✅ (ET) Tundra Climate – Higher Himalayan ranges, Ladakh 📍 Utility of the Classification ✅ Helps in agro-climatic zoning, crop selection, water planning ✅ Useful for disaster risk reduction, ecological studies, and climate adaptation policies

📘 Prelims Question Q. Which of the following climate types in India is represented by Koeppen’s classification code ‘Aw’? A. Cold-humid winter with short summer B. Monsoon with short dry season C. Tropical Savanna D. Tundra Climate Answer: ✅ C. Tropical Savanna

📝 Mains Question (GS1 – Geography) Q. Discuss the significance of Koeppen’s climatic classification in understanding India’s climatic diversity. How can it assist in agricultural and water resource planning?

#Geography

🔆 IIT-D Makes Breakthrough in Quantum Communication 📍 Scientists from IIT Delhi & DRDO transmit entangled photons over 100 km ✅ Quantum Key Distribution (QKD) tested using satellite-range communication. ✅ Key goal: Distribute secure keys via quantum entanglement. ✅ No interception possible without disturbing the system. ✅ Built towards a future satellite-based quantum network across India. ✅ Used indigenously developed photon sources, vital for defence applications.

📝 Prelims Question: Which of the following best defines Quantum Key Distribution (QKD)? A. Secure digital currency distribution B. Distribution of classical public keys using fiber C. Distribution of encryption keys using quantum entangled photons D. Cloud-based AI encryption Answer: C

📝 Mains Question (GS3 – Science & Tech): Discuss the significance of quantum communication technologies like QKD in India’s defence and cybersecurity architecture. How do initiatives like the IIT-D & DRDO project aid this?

#GS3 #ScienceAndTech #QuantumIndia #IITDelhi #QKD #UPSCPrelims2026 #prelims #GS3 #science_and_technology #science_technology Join @PIB_UPSC @upsc_science_and_technology

🔆 Visakhapatnam Hosts International Yoga Day ✅ Andhra Pradesh’s Visakhapatnam will host India’s largest Yoga Day event. ✅ Over 3.5 lakh people will join along a 28 km stretch. ✅ PM Modi and CM Naidu to attend. ✅ 9 lakh registered; 20,000 officials deployed. ✅ Event aims for a Guinness World Record with 7000+ buses mobilized and strict arrangements in place. #prelims #art_and_culture

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🔆 Why El Niño Is Hard to Predict 📍 El Niño remains a major challenge in climate forecasting due to dynamic ocean-atmosphere interactions ✅ 🌊 ENSO has 3 phases: El Niño (warm), La Niña (cool), and neutral. ✅ 🌀 Climate models struggle due to late-emerging ENSO signals (only in early summer). ✅ 🌬️ Westerly wind bursts and Indian Ocean anomalies can trigger or dampen ENSO. ✅ 🧪 New model: Recharge Oscillator (RO) simulates ENSO as a contest between sea-surface temp & sub-surface heat. ✅ 🌐 Disagreements remain on which ocean basin is most influential in modelling.

📝 Prelims Question: Which of the following best describes the ENSO phenomenon? A. Only a Pacific Ocean event B. Ocean-atmosphere interaction with 3 phases C. Caused by monsoonal winds D. Predictable using historical data Answer: B

📝 Mains Question (GS1 – Geography): What makes the prediction of the El Niño Southern Oscillation (ENSO) phenomenon difficult? Discuss the implications for global weather forecasting and agriculture.

#GS1 #Geography #Climate #ENSO #ElNino #Prelims2026 #UPSC #prelims Join @Mapping_prelims_mains

🔆 Warming Cuts Crop Yields, Hits Calorie Access 📍 Global temperature rise threatens food security by reducing yields of staple crops ✅ 🌡️ 1°C rise → 4% drop in per capita calorie availability by 2100. ✅ 🌾 Crops like rice, wheat, maize, sorghum, soy → lower yields by 2050 & 2100. ✅ 🇮🇳 Wheat in north India worst hit; rice relatively safer. ✅ 👨‍🌾 Farmers must adapt via heat-tolerant crops, sowing changes, etc. ✅ 📊 Study published in Nature models both climate and human adaptation.

📝 Prelims Question: Which Indian crop is likely to suffer most from rising temperatures by 2100? A. Rice B. Wheat C. Maize D. Soybean Answer: B

📝 Mains Question (GS3 – Environment/Agriculture): How will rising temperatures affect India’s agricultural productivity? Suggest adaptive measures farmers and policymakers can adopt to ensure food security.

#GS3 #ClimateChange #Agriculture #FoodSecurity #Prelims2026 #UPSC #gs1 #prelims #environment @upsc_4_environment @upsc_the_hindu_ie_editorial

🔆 India Launches Operation Sindhu 📍 What happened? Amid rising Iran-Israel tensions, India began Operation Sindhu to bring back its citizens.

📍 Nonia Rebellion ✅The Nonias were traditional salt makers, and they also had expertise in producing Shora (saltpetre) — an essential ingredient in making gunpowder. ✅The Nonia Rebellion refers to a series of uprisings by the Nonia community between 1778 and 1800 in Bihar, particularly in the districts of Saran, Vaishali, and Purnia. ✅It was a grassroots movement against the British East India Company’s exploitative revenue policies, and oppression by local zamindars. 📍Buddhu Nonia ✅Buddhu Nonia was a freedom fighter from the Nonia community in Bihar. ✅He actively participated in the Salt Satyagraha movement led by Mahatma Gandhi. ✅He began making salt as an act of civil disobedience and was deceitfully arrested and thrown into a boiling salt cauldron—an act that turned him into a martyr of the freedom movement #history #prelims Join @PIB_UPSC @Upsc_4_history

🔆 Winter Weather in India: Key Drivers & Effects 📍 1. Surface Pressure & Winds ✅ High-pressure zone forms in Central & West Asia. ✅ Cold continental winds blow into India from the north. ✅ These collide with trade winds → unstable zone forms. ✅ Result: Northwest India experiences dry, cold North-Westerlies. 📍 2. Jet Stream & Upper Air Circulation ✅ Westerly jet streams dominate Asia in winter. ✅ Tibetan Himalayas split jet into two:  🔹 North branch flows over Tibetan Plateau.  🔹 South branch crosses south of the Himalayas. ✅ Subtropical westerly jet brings winter rain to northwest India. 📍 3. Western Disturbances & Cyclones ✅ Western disturbances (from the Mediterranean) hit north & northwest India. ✅ Bring light winter rain → great for wheat crops. ✅ Tropical cyclones still possible in Oct–Nov, driven by easterlies. ✅ Hit east coast states – TN, AP, Odisha with heavy rain + wind. #Geography

🔆 Dadasaheb Phalke Award 📍 Context ✅ Actor Mithun Chakraborty has been awarded the prestigious Dadasaheb Phalke Award. 📍 About the Award ✅ Established: 1969, named after Dhundiraj Govind Phalke, regarded as the father of Indian cinema. ✅ Honors: Recipients receive: 1.A shawl 2.The Swarna Kamal (Golden Lotus) medallion 3.A cash prize of ₹10 lakh 📍 Notable Recipients ✅ Satyajit Ray, Raj Kapoor, Lata Mangeshkar, among other celebrated awardees. ✅ First Awardee (1969): Devika Rani, honored for her contributions to Indian cinema. 📍 About Dadasaheb Phalke ✅ Born on 30 April 1870 in Trimbak, Bombay Presidency. ✅ Education: Attended Sir J. J. School of Art, Bombay, completed a one-year drawing course. ✅ Legacy: Directed India’s first full-length silent feature film, Raja Harishchandra (1913). Produced 95 feature-length & 27 short films, including: Mohini Bhasmasur Satyavan Savitri Lanka Dahan Shri Krishna Janma Kaliya Mardan #art_and_culture

🔆 Local Self Government – Key Facts ✅ The total revenue of all ULBs in India is only 1% of GDP, low compared to Brazil (7%) & South Africa (6%) ✅ PRI funds composition – Central Govt Grants (80%), State Govt Grants (15%), Own revenue (5%) ✅ Own revenues make up just ~ 5% PRI funds (Non-tax revenue 3.3% and Tax revenue 1.1%), low compared to Brazil (40%) etc. ✅ The share of property tax in India is only 0.14% of GDP as against 2% in OECD countries ✅ Property tax constitutes more than 16% of revenue receipts of municipal corporations, and more than 60% of their own tax revenue ✅ Municipal Corporation revenue receipts were just 0.6% of GDP in 2023-24, whereas those of Central Govt and State Govts was 9.2% and 14.6% of GDP respectively ✅ The revenue receipts of Municipal Corporations exhibit concentration, with the top 10 MCs accounting for over 58% of total municipal revenue receipts ✅ About 23% of total municipal revenue remains unspent, indicating a surplus in the municipal system that is not being effectively utilised. #GS2 #GS4 #Ethics #essay #governance #mains #mains Join @CSE_EXAM @UPSC_FACTS

🔆 Kerala Seeks Amnesty Scheme for Wildlife Trophy Declaration 📍 What’s Proposed? ✅ Kerala plans to request the Centre for an amnesty scheme allowing people to declare wildlife trophies in their custody, last permitted in 2003. ✅ As per Section 40 of Wildlife (Protection) Act, 1972, undeclared trophies are illegal. 📍 Who’s Eligible? ✅ Legal heirs with valid ownership licenses issued by the Forest Department. ✅ Only trophies inherited, not illegally acquired. 📍 Penalties ✅ Conviction may lead to 3–7 years jail + ₹25,000 fine. 📍 Centre’s Role ✅ Final approval lies with the Union Ministry of Environment, Forest & Climate Change.

🔆 Mango Dispute: Andhra Pradesh vs Karnataka 📍 Issue ✅ Chittoor (AP) bans Totapuri mangoes from Karnataka to protect local farmers. ✅ Karnataka mangoes are cheaper (₹5–6/kg) vs AP’s ₹8/kg rate. 📍 Impact ✅ Karnataka claims economic distress for farmers due to disrupted supply chains. ✅ AP fears cheaper mangoes will hurt local earnings. 📍 Political Angle ✅ Karnataka (Congress) vs AP (TDP – NDA ally). ✅ Possible retaliation threats include blocking AP-bound agri-commodities. 📍 Status ✅ No official response yet from Andhra; standoff continues.

🚦 New App Helps Commuters Pick ‘Greener’ Routes 📍 About DRUM App ✅ Developed by IIT-Kharagpur, the DRUM app offers 5 route options: shortest, fastest, least pollution (LEAP), least energy (ECAP), and combined. ✅ Real-time data helps reduce pollution exposure by 50% in Delhi (LEAP route). 📍 Key Features ✅ Uses GraphHopper + Mapbox for real-time traffic and route generation. ✅ Routes with high pollution, energy use, or delay are eliminated. ✅ Prioritizes health and sustainability, tested on Delhi roads. 📍 Broader Goals ✅ May extend to bikes, rickshaws, walking and integrate street sensors. ✅ Aims to cut urban air pollution, which causes 72% of city deaths yearly.

World's rivers are leaking olg CO2 into air 🌍 Rivers Leaking Ancient CO₂ into Atmosphere 📍 Key Findings ✅ 60% of CO₂ from rivers comes from millennia-old deep soil carbon, low in carbon-14. ✅ Rivers are leaking old CO₂, returning ancient carbon to the air. 📍 Implications ✅ The leak rate matches the carbon absorbed by land ecosystems. ✅ Carbon-cycle models may be undercounting land carbon losses due to this overlooked source.

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