DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 8th November – 2025
Archives (PRELIMS Focus) Carbon Sequestration Category: Environment and Ecology. Context: There is a need to increase carbon sequestration in the soil, which is 0.15% at present against the preferred figure of 2% to 5 %, Sultan Ahmed Ismail, Member, State Planning Commission, said. About Carbon Sequestration: Definition: Carbon sequestration is the long-term storage of carbon in plants, soils, geologic formations, and the ocean. It occurs both naturally and as a result of anthropogenic activities and typically refers to the storage of carbon. Significance: Carbon Farming (Carbon Sequestration) involves practices that are known to improve the rate at which CO2 is removed from the atmosphere and converted to plant material and soil organic matter. It promises a bold new agricultural business model — one that fights climate change, creates jobs, and saves farms that might otherwise be unprofitable. Important for SDGs: Sustainable Development Goal 13 (SDG 13: Climate Action), which focuses on taking immediate action to address climate change and its effects, is in line with research into carbon sequestration. Types of Carbon Sequestration: Terrestrial Carbon Sequestration: It is the process through which CO2 from the atmosphere is absorbed by trees and plants through photosynthesis and stored as carbon in soils and biomass (tree trunks, branches, foliage, and roots) Geologic Carbon Sequestration: Under this, CO2 is stored in areas such as oil reservoirs, gas reservoirs, unmineable coal seams, saline formations and shale formations with high organic content. Ocean Carbon Sequestration: Under this, oceans absorb, release and store large amounts of CO2 from the atmosphere. This can be done in two ways- enhancing productivity of ocean biological systems through Iron fertilization, and injecting CO2 into the deep ocean. Different Methods of Carbon Sequestration: Natural Carbon Sequestration: It is the process by which nature has achieved a balance of carbon dioxide in our atmosphere suitable for sustaining life. All organic life on this planet is carbon based and when plants and animals die, much of the carbon goes back into the ground where it has little impact on contributing to global warming. Artificial Carbon Sequestration: It refers to a number of processes whereby carbon emissions are captured at the point of production (e.g., Factory Chimneys) and then buried. One example is ocean sequestration whereby carbon dioxide is injected deep into the ocean, forming lakes of CO2. Source: The Hindu Fujian Aircraft Carrier Category: Defence and Security Context: China has commissioned its latest aircraft carrier Fujian after extensive sea trials, state media reported. About Fujian Aircraft Carrier: Nature: The Fujian is China’s third carrier and the first that it both designed and built itself. First two carriers: China’s first aircraft carrier, the Liaoning, was Soviet-made and its second, the Shandong, was built in China but based on the Soviet model. Both use older-style ski-jump type systems to help planes take flight. In sync with objective of a modernised force by 2035: It is perhaps the most visible example of China’s massive military overhaul and expansion that aims to have a modernised force by 2035 and one that is “world class” by mid-century. Significance: For China’s navy, one goal is to dominate the near waters of the South China Sea, East China Sea and Yellow Sea around the so-called First Island Chain, which runs south through Japan, Taiwan and the Philippines. But deeper into the Pacific, it also wants to be able to contest control of the Second Island Chain, where the U.S. has important military facilities on Guam and elsewhere. Technology used: The Fujian skips past the steam catapult technology used on most American carriers to employ an electromagnetic launch system found only on the latest U.S. Navy Ford-class carriers. The system causes less stress to the aircraft and the ship, allows for more precise control over speed and can launch a wider range of aircraft than the steam system. Comparison to carriers of US: Numerically it only has three carriers compared to the U.S. Navy’s 11, and while China’s carriers are all conventionally powered, the U.S.’s are all nuclear powered — they can operate almost indefinitely without being refuelled, increasing their range. Aircraft carriers of India: The Indian Navy operates two aircraft carriers namely the INS Vikramaditya, a refurbished Russian carrier commissioned in 2013, and the INS Vikrant, an indigenously designed and built carrier commissioned in 2022. Source: The Hindu Baliyatra Festival Category: ScHistory and Culture Context: President Droupadi Murmu has extended her greetings on the occasion of the historic ‘Baliyatra’ festival to all the countrymen, especially the people of Odisha. About Baliyatra Festival: Nomenclature: Baliyatra, literally ‘voyage to Bali’ is one of the country’s largest open-air fares. Location: It is celebrated annually in Cuttack, Odisha. Occasion: It is celebrated every year on Kartika Purnima (full moon night in the month of Kartik) that marks the day that the seafaring traders departed for the Indonesian islands. Reason behind festival: It is organised every year to commemorate the 2,000-year-old maritime and cultural links between ancient Kalinga (today’s Odisha) and Bali and other South and Southeast Asian regions like Java, Sumatra, Borneo, Burma (Myanmar) and Ceylon (Sri Lanka). Significance: The Bali Yatra celebrates the ingenuity and skill of those expert sailors who made Kalinga one of the most prosperous empires of its time. It is a time when people purchase everything from automobiles and electronic devices to local artisanal products at prices that are comparatively low. Methods of celebration: The celebration features grand fairs, elaborate rides, food and dance. Indian women perform ‘Boita Bandana’, they make boats of paper or banana leaf (sholapith) with lighted lamps inside and float them down the Mahanadi as a part of the celebrations. Source: News on AIR Project Suncatcher Category: Science and Technology Context: With Project Suncatcher, Google joins the club to put AI data centres in space, but feasibility remains a challenge. About Project Suncatcher: Nature: Called Project Suncatcher, Google’s new moonshot is a research initiative exploring how constellations of solar-powered satellites could host data centres in space. The idea is similar to satellite constellations like Starlink,
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