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Volunteers map avenue trees as part of I Change Indiranagar's tree-mapping exercise. Image by Kannan A.S.

Citizens push back infrastructure projects that threaten green cover

Sohel Sarkar 29 Oct 2026
Water from the taps run yellow in Nashik. Image by Esha Lohia.

Chromium in water upends life in an industrial neighbourhood

Esha Lohia 28 Oct 2026
A light aircraft such as a Cessna, fitted with flare racks that can burn substances at appropriate altitudes, is used to release aerosol particles into clouds for cloud seeding. Representative image by Christian Jansky via Wikimedia Commons (CC BY-SA 2.5).

Cloud seeding’s potential to ease drought is uncertain

Nikhil Sreekandan 23 Oct 2026
A taxi on the move in Kolkata, West Bengal. A global air-monitoring study quantified tyre-derived chemicals in the air using passive samplers. Kolkata ranked first among all global cities in diphenylguanidine concentration. Image by Dharamveer via Pexels.

The toxic tyre chemical no one is measuring

Lakshmi Nilakantan 22 Oct 2026

As the Ganga treaty nears expiry, renewed concerns over water sharing arise

Umesh Kumar Ray 16 Oct 2026
People cover their ears during a loudspeaker competition at a fair in Allahabad, Uttar Pradesh in 2011. (AP Photo/Rajesh Kumar Singh)

Noise pollution is a public health risk that’s hard to measure and monitor

Disha Shetty 15 Oct 2026
A garden lizard on a shrub of the genus Carissa. Image by Sonali Dahotre.

Reclaiming nature’s many delights through living fences [Book Review]

Usha Rai 12 Oct 2026
Baby Titus inside a neighbour's house that has been wrecked by floods. Image by Arathi M.R.

The emotional cost of displacement

Arathi M.R. 9 Oct 2026
A woman wades through floodwaters to collect drinking water near her submerged house in Jorhat, Assam in August 2026. (AP Photo/Parikhit Saikia)

A changing climate is reshaping India’s infectious disease risks

Rupsy Khurana 8 Oct 2026
Concretising tree bases weakens them makes trees more vulnerable to falling during extreme weather events. A single week in July saw 902 trees being uprooted as rains fell. Image courtesy of Mumbai Citizen for Trees.

As city trees fall, experts point to poor planning and civic apathy

Esha Lohia 23 Sep 2026
Rains in central India. Representative image by Ms Sarah Welch via Wikimedia Commons (CC BY-SA 4.0).

El Niño brings drought and extreme rain together

Kundan Pandey 22 Sep 2026
Pollution chokes the perennial Rispana river which flows through Dehradun. Image by Kenyum Bagra.

Monsoon amplifies antibiotic resistance gene levels in river water used by residents

Lekha Bandopadhyay 21 Sep 2026
Geeta Devi mud house remains partially submerged in flood water. She worries how long it would hold. Image by Ashwini Kumar Shukla.

Floods affect millions in Bihar despite rainfall deficit

Ashwini Kumar Shukla 18 Sep 2026
The construction site of the Hebbal short tunnel. Image by Sohel Sarkar.

Bengaluru’s Hebbal tunnel raises concerns about groundwater and flooding

Sohel Sarkar 11 Sep 2026
People stand on remnants of a bridge which spanned across Trishuli river and was washed away in flash floods, in Dhading district. (AP Photo/Niranjan Shrestha)

Nepal’s flood disaster puts its hydropower-first strategy, exports to the test

Rudra Pangeni 10 Sep 2026
A red-naped ibis in Udaipur. Image by Vijay Kumar Koli.

Red-naped ibises carry antibiotic-resistant bacteria, study finds

Sneha Mahale 9 Sep 2026
Survivors walk past a house damaged by flash floods on the banks of Trishuli river in Devighat, Nuwakot district, Nepal on September 7, 2026. (AP Photo/Niranjan Shrestha)

Why is disaster risk increasing in the Himalayas? [Explainer]

Max Martin 8 Sep 2026
A policeman alerts people standing on a bridge to return to higher ground over the swollen Trishuli river in Galchhi, Nepal. (AP Photo/Niranjan Shrestha)

Community-based warning saves lives during Nepal floods

Abhaya Raj Joshi 7 Sep 2026
A farmer sets fire to crop residue on the out skirts of Jalandhar, Punjab. (AP Photo)

Crop-residue burning, a major contributor to black carbon pollution: Study

Nikhil Sreekandan 3 Sep 2026

Reduced exposure to nature is linked to immune system diseases [Commentary]

Irfan Shakeer, Ayisha Farseena 3 Sep 2026