India Surpasses China as World's Largest Rice Producer; DSR & Designer Rice Explained

ISRO's Oceansat-3 Captures Sharp Drop in Pacific Marine Productivity as El Niño Warms Ocean

ISRO's Oceansat-3 satellite has detected a sharp decline in chlorophyll-a in the equatorial Pacific Ocean during April-June 2026, linked to the developing El Niño. This reduction in marine productivity threatens the ocean food chain and serves as an early climate indicator ahead of a forecast strong El Niño event from September 2026 to February 2027.

GRSE Launches Indigenous ORV 'Sagar Manthan' for NCPOR under ₹4,077 Cr Deep Ocean Mission

India launched its indigenous ocean research vessel 'Sagar Manthan' on Sep 9, 2026, built by GRSE for NCPOR under the Ministry of Earth Sciences. This vessel fills a critical gap in India's aging research fleet, ending dependence on foreign ships for deep-sea mineral exploration. It directly supports the ₹4,077 crore Deep Ocean Mission and strengthens India's blue economy and strategic underwater domain awareness.

Hurricane Polo Turns Category 5; Strong El Niño May Cause 451,000 Additional Global Heat Deaths

Hurricane Polo has intensified into a Category 5 storm off Mexico's Pacific coast, with maximum sustained winds of 270 kmph. This is unfolding against an unusually strong El Niño that the WMO expects to persist through February 2027. El Niño is being watched closely because it can disrupt rainfall worldwide—the Climate Impact Lab projects 451,000 additional heat-related deaths globally, including about 15,800 in India.

E20 Ethanol Fuel Used in 4 Crore Vehicles; Flex-Fuel Engines to End ₹22 Lakh Cr Fuel Imports

E20 ethanol-blended petrol is being used in 4 crore four-wheelers and 20 million two-wheelers without harming vehicles and with improved mileage. Union Minister Nitin Gadkari announced that automobile companies will produce flex-fuel engines capable of running on 100% ethanol, potentially saving ₹22 lakh crore in fuel imports and boosting farmers' income through higher maize prices.

Monsoon Revival: Rainfall Deficiency Drops to 11.5%, Kharif Sowing Gap Narrows to 2.9%

The monsoon has revived significantly, reducing cumulative rainfall deficiency from 22.8% to 11.5% and narrowing the kharif sowing gap from 20.8% to 2.9%. However, El Niño is strengthening into a 'very strong' event, posing a serious threat to the upcoming rabi season. Proactive supply-side management will be crucial for food security.

Western Himalaya Warming 7.18°C by 2100, Snow Loss Triple Under High Emissions: Study

A new study reveals that the Western Himalaya is warming faster than the central and eastern parts, with winter temperatures projected to rise by over 7°C by 2100 under high emissions. This will lead to severe snow loss, threatening water security for 1.5 billion people dependent on glacier-fed rivers like the Indus, Ganges, and Brahmaputra.

Climate Change Study: 0.01°C/yr Temp Rise, 3.97mm/yr Rain Decline in Nilgiri Biosphere Reserve

A study reveals that climate change is disrupting the phenology of forests in the Nilgiri Biosphere Reserve, with a 0.01°C annual temperature rise and 3.97 mm annual rainfall decline from 1950 to 2018, leading to altered growing seasons and threatening endemic species. This data is critical for understanding climate impacts on biodiversity hotspots, a recurring theme in UPSC environment and geography questions.

UK Met Office Forecasts Record El Nino >3°C; 2027 Likely Hottest Year on Record

The UK Met Office has forecast the strongest El Nino in over a century, with Pacific sea surface temperatures rising over 3°C above normal. This unprecedented event could make 2027 the hottest year globally, impacting global weather patterns including drier conditions in India and severe droughts in South America and the West Pacific.