Category: Environment

Sponge parks are quickly becoming a prominent element of Chennai’s flood mitigation efforts. Spearheaded by the Greater Chennai Corporation (GCC), the project now boasts 78 sponge parks in the city, under the Sponge City initiative. While these structures are designed to manage surface runoff and prevent urban flooding, a closer examination reveals significant deviations from the holistic, nature-based designs that typically define a sponge park. Unlike the sponge park in Porur (Dr MS Swaminathan Wetland Eco Park), that integrates nature-based design and ecosystem restoration, most GCC-implemented sponge parks function more like glorified rainwater harvesting systems. The critical question remains: Are…

As the lunch bell rings at Greater Chennai Corporation’s (GCC) Chennai High School in Adyar, students line up eagerly for their midday meal. Seated in groups, they chat happily while enjoying vegetables grown in their school’s terrace garden, which they helped plant and nurture. Once lunch is over, every student deposits food waste into a dedicated bin. This seemingly small act is part of a much larger system. The food waste, along with kitchen scraps, is fed into a biogas plant located within the school campus. The biogas generated powers the school kitchen, while the resulting slurry is used as…

Amidst the urban sprawl of HSR Layout, Swachagraha Kalika Kendra (SGKK) stands out, looking nothing like a traditional park. At the entrance, a striking archway made of old plastic bottles and scrap materials makes a statement on creative reuse. Stepping further in, visitors to the park are greeted by a thriving community garden, where vegetables are grown organically.  SGKK is not just a park; it is a place for learning and community action, and inspires people in the locality to adopt sustainable waste management practices. The park stands as a microcosm of what the city could become—greener, more conscious, and community-driven.…

Several Marathi poets have captured the beauty of the month of Shravan: the gentle, short spells of silken raindrops, playing hide-and-seek with the sun, and etching rainbows in the sky. After one and a half to two months of dark skies and consistent rainfall in Mumbai, Shravan, when it starts around August, is seen as a time for Mumbaikars to enjoy the rains, as the monsoon wanes in intensity towards the end of the season. At least, that used to be the case.Over the past couple of years, however, rains have started to visit Mumbai at the beginning of June. Then it…

Two summers ago, even with the fans on, sweat would trickle down Rupali Devi’s face and body relentlessly.  Now, she can sit home and eat a meal in peace, without having to wipe sweat off every few minutes. Rupali, 23, lives in a 128 sq ft house at Nargis Dutt Nagar slum in Mumbai’s Bandra West with her parents and five siblings. With an asbestos sheet for a roof in a congested neighbourhood, summers felt hotter than they actually were. According to a study by the Centre for Science and Environment (CSE), between the decades of 2001-10 and 2014-23, Mumbai’s…

With rapid urbanisation and increasing strain on public water supply systems, especially in cities like Bengaluru and Chennai, sustainable water management has become essential. Rainwater Harvesting (RWH) is one of the simplest and most effective methods to address water scarcity, reduce urban flooding, and restore groundwater levels. This guide provides a clear overview of what RWH is, why it matters, how it works, and what it costs. What is RWH? Rainwater Harvesting (RWH) refers to the practice of collecting and storing rainwater for use or directing it into the ground to replenish groundwater. This can be achieved through two main…

As the sun blazed across India's hottest regions, people faced an unprecedented heat risk this year. While Rajasthan, Maharashtra, Delhi, Tamil Nadu, Gujarat and many other states reported hundreds of heatstroke cases and heat-related illnesses, experts have warned that the actual toll of the heat wave impact may be underreported in India. Summer may be officially over, and the monsoon has brought respite, but the impact of heat on all aspects of life remains a real and present danger. Heat-related deaths can occur even when there are no heat wave warnings, and factors like humidity, wind speed, pre-existing medical conditions,…

Ragiri Sankara is a cab driver based in Bengaluru. “Tackling the heat is a huge task these days,” he says. To be driving all day in the heat is very tiring; the car heats up very fast. “I pack different juices daily to keep myself cool,” he adds.  Gig workers, street vendors, waste pickers, construction labourers, and the urban poor face a higher risk of heat stress than the general population. Now that summer has ended and the monsoon is setting in, the government has once again failed to effectively manage heat stress in Bengaluru. The need for a localised…

Ever stepped out to be hit by a blistering wave of heat? When the surroundings felt like a furnace and the body seemed to give up from exhaustion? This is how it was a week ago, when in many parts of India, including Delhi, the mercury touched 40 degrees Celsius, before sudden rainfall drastically lowered temperatures. The high humidity pushed the 'feel-like temperature' to almost 50 degrees Celsius, and the heat wave disrupted daily life.   Now, imagine a long battle with unrelenting heat for weeks or months, stifling communities and threatening livelihoods. Heat waves and chronic heat stress may…

Migrant workers and their families, street vendors, gig workers, domestic help and many more—where do these people figure in city heat mitigation measures? India's heat action plans (HAPs) are falling short where it matters most. About 95% lack vulnerability assessments, leaving communities ill-prepared for rising temperatures, reveals a Centre for Policy Research study. Most plans fail to account for local contexts, oversimplify the hazards, and overlook the most at-risk populations. Bengaluru does not even have a heat action plan. In 2024, architect and climate researcher Ujjvala Krishna, along with other experts from the Ashoka Trust for Research in Ecology and…