CDS / OTA Current Affairs · Topic

CDS Environment & Ecology Current Affairs 2026

Environment questions pair programmes with their ministries and years, protected areas with their states, and international conventions with their aims. These explainers cover clean-air and climate programmes, wetlands and wildlife, pollution measures and India's climate commitments, with the science explained where the paper is likely to test it. Every article carries ten practice MCQs and a note on how the topic is asked.

52 articles · updated 21 October 2026 · page 1 of 3

Latest articles

• 21 October 2026 2,237 of 5,270: How the Ganga's Sewage Gets Treated

  A PIB backgrounder of 21 October 2026 sets out the sewage treatment technologies used under Namami Gange, from activated sludge and UASB to NEREDA, Food Chain Reactors, Johkasou and construc…

• 21 October 2026 One Field, Two Harvests, and the Height of the Panel

  The 7th AgriVoltaics World Conference opened at Bharat Mandapam on 21 October 2026, the first held in the Global South, and the next phase of PM-KUSUM is to carry an agrivoltaic programme. W…

• 20 October 2026 130 Cities, and the Fortnight the Air Decides

  A nationwide Green Diwali Campaign ran from 20 October 2026, focused on the 130 cities under the National Clean Air Programme. An explainer on NCAP's targets and contested results, non-attai…

• 17 October 2026 India Forecasts Well. It Does Not Yet Serve Well.

  IITM Pune hosted the first stakeholder consultation of the Climate Science into Services for India Forum on 17 October 2026, with 150 participants from 80 institutions. An explainer on clima…

• 16 October 2026 A Dead Meander Near Lucknow Holds 4,600 Years of Monsoon

  Scientists at the Birbal Sahni Institute of Palaeosciences reconstructed 4,600 years of climate from Karela Lake, an oxbow lake near Lucknow, tracing how monsoon fluctuations shaped hydrolog…

• 15 October 2026 A Reservoir Built in 1958, Now a Wetland of International Importance

  The Environment Ministry announced on 15 October 2026 that India's Ramsar tally has reached 103 with Sukhna Wetland in Chandigarh and Sauj Jheel in Uttar Pradesh. An explainer on the Ramsar …

• 8 October 2026 ₹8,300 Crore on Viaducts, and ₹650 Crore on Overpasses

  NHAI released a document on wildlife mitigation measures along National Highways, with ₹19,700 crore spent over five years. An explainer on the barrier effect, why viaducts beat underpasses,…

• 6 October 2026 2 Presidencies for 1 Summit, and the 3rd Pillar India Keeps Naming

  India pressed for equal attention to adaptation, mitigation and means of implementation at the UNFCCC Pre-COP31 in Fiji. An explainer on CBDR-RC, the unprecedented split COP31 presidency, an…

• 5 October 2026 Who Owns the Tonne: India, Japan and the Adjustment That Must Follow

  India and Japan launched the Operational Manual for their Joint Crediting Mechanism under Article 6.2 of the Paris Agreement. An explainer on ITMOs, corresponding adjustments, and why sellin…

• 29 September 2026 33,000 Hectares and One Bamboo Farmer

  India handed over its first PRAMAAN certificates under the Indian Forest and Wood Certification Scheme on 29 September 2026. An explainer on what forest certification is, why India built its…

• 28 September 2026 82 Whales That Never Leave, and a Treaty Written to Hunt Them

  India delivered its opening statement at IWC-70 in Hobart on 28 September 2026, in the 80th year of the International Convention for the Regulation of Whaling. An explainer on how a whaling …

• 25 September 2026 The Cloth Bag Is the Easy Part

  A PIB backgrounder of 25 September 2026 traced how Indian cities are changing their plastic habits. An explainer on the Plastic Waste Management Rules, what Extended Producer Responsibility …

• 16 September 2026 Two Portals on Ozone Day: Scope 1, Scope 2 and the Problem of Counting Carbon

  On World Ozone Day 2026 the MoEFCC launched India's Net Zero Portal for voluntary corporate net-zero disclosure and a NAPCC Dashboard to monitor the National Missions on climate change. A CD…

• 14 September 2026 A Soft Release Centre at Naliya: The Great Indian Bustard's Narrow Road Back

  On 14 September 2026 the Union Environment Minister inaugurated a Great Indian Bustard Soft Release Centre at Naliya in Kachchh, reviewed 11 sq km of restored grassland and 30 km of predator…

• 13 September 2026 Gandhinagar Hosts the Circular Economy Forum: A First for South Asia

  India hosts the World Circular Economy Forum 2026 at Gandhinagar from 15 to 18 September 2026, the first time in South Asia, with 2,000-plus participants from 65-plus countries. A CDS/OTA ex…

• 10 September 2026 Twenty-One Gigawatts in the Streams: Small Hydro's Unfinished Business

  India's assessed small hydro potential is about 21 GW across 7,100 sites, of which only 5.2 GW is harnessed, the Minister of State said on 10 September 2026. An explainer on what counts as s…

• 9 September 2026 One Milligram Too Many: Fluoride, Groundwater and the Fluorosis Programme

  The Health Ministry held a national workshop on fluorosis on National Fluorosis Day, 9 September 2026, to strengthen the NPPCF. An explainer on why fluoride is both protective and poisonous,…

• 7 September 2026 Blue Skies by Numbers: What Seven Years of NCAP Have Delivered

  Swachh Vayu Diwas 2026 on 7 September brought the 5th Swachh Vayu Sarvekshan awards and an NCAP scorecard: 108 of 130 cities cut PM10, 14 met the national standard. An explainer on NCAP, NAA…

• 6 September 2026 Nature's Cleaning System: How India Nearly Lost Its Vultures

  International Vulture Awareness Day 2026 was marked at Panchkula with a national workshop and a visit to the Jatayu Conservation Breeding Centre, Pinjore. An explainer on the diclofenac coll…

• 5 September 2026 Who Owns a Chilli Seed: ₹200 Crore of Benefit-Sharing

  The National Biodiversity Authority crossed ₹200 crore in cumulative Access and Benefit-Sharing disbursements on 5 September 2026, sanctioning ₹8.23 crore from bitter gourd, okra, chilli and…