Kalyan Chatterjee

The latest controversy was sparked off in November 2025, when a government proposal to limit the definition of the range to only hills more than 100 metres high received the endorsement of the Supreme Court. Environmentalists soon raised a clamour for the

Thousands of fish surfaced dead in the Yamuna, at Burari, Delhi, in the early summer of 2025, just weeks before the monsoon. The scale of the die-off, widely reported by the media, left little doubt that it was the result of human

But where moral persuasion and peaceful efforts by Sarvodaya leaders like Vinoba Bhave and Jaya Prakash Narayan achieved limited success, the rejuvenation of rivers in Karauli district of Rajasthan on Chambal Basin seems to have done the trick. As water began to

Steam may seem mundane, but it sits at the heart of modern manufacturing. From food processing to petrochemicals, textiles to pharmaceuticals, steam is the hidden engine that powers production lines. And as India seeks to accelerate its march toward becoming a developed

Magsaysay Award Winner Dr. Rajendra Singh—revered as India’s “Waterman” for his five decades of work in reviving rivers—has called for urgent recognition of rivers as legal persons. In India’s cultural tradition, rivers have long been revered as mothers, worshipped and protected well

YAMUNA: DELHI’S LIFELINE IN PERIL: The Yamuna River is not merely a geographical feature of Delhi; it is the very foundation upon which the city was established, both physically and culturally. Yamuna is the reason why Delhi was born. It nourished it.

Kalyan Chatterjee interviews Dr Jayanta Bandyopadhyay, an internationally renowned professional on public interest research, mountain environment and water governance in south Asia. India receives an average of 120 centimetres of rainfall annually, according to the India Meteorological Department — a figure that

This they do by cutting down this invasive species, South American Mesquite, turning it into biochar and applying it to their fields to improve soil quality and secure a sustainable future for their land and livestock. Hitherto they had been producing charcoal