Environment

The metropolis of Bengaluru, once celebrated as a garden city, is now grappling with the loss of its green spaces, leaving its dwindling lakes as the last line of defence against urban heat. Citizen groups deeply committed to preserving these lakes, have actively engaged in restoration efforts despite challenges like conflicting stakeholder priorities. This is Part 3 of a three-part Citizen Matters explainer series on Bengaluru's lake systems. Part 1 explores Bengaluru's lake system, highlighting its functions and features.  Part 2 focuses on the assets of a lake, including core zone assets (ecological assets) and social zone assets (recreational assets). …

Hazy mornings with the air thickened by vehicular smoke during peak-hour traffic are synonymous with Bengaluru winters. The city may have lower PM2.5 levels overall when compared to other mega cities, but high-density traffic corridors and emissions in industrial hubs are causing localised pollution spikes. A November 2024 study by Respirer Living Sciences, analysing PM2.5 pollution levels across ten Indian cities, revealed this data. The study examined AQI information from 13 Continuous Ambient Air Quality Monitoring (CAAQM) sites in Bengaluru that recorded an average of 39 micrograms per cubic metre (µg/m3) of PM2.5 air pollutants in November 2024. This is…

A lake is much more than a mere water body, it is a complex ecosystem. All those resources or features that make this ecosystem complete and sustainable can be considered lake assets. Assets are generally classified into core zone assets (ecological zone assets) and social zone assets (recreational zone assets). Each serves a set of distinct purposes, supporting the ecological, infrastructural and social functions of a lake system. This is Part 2 of a three-part Citizen Matters explainer series on Bengaluru’s lake systems. Part 1 explores Bengaluru’s lake system, highlighting its functions and features.  Part 2 focuses on the assets of a…

On December 22nd last year, the Chennai District Collector and the Joint Chief Environmental Engineer of the Tamil Nadu Pollution Control Board (TNPCB) abruptly left Perunthalaivar Kamarajar Maligai in Ennore in the middle of a public hearing. The reason? Chaos and backlash from the local communities of Ennore, who wanted to voice their concerns regarding the Ennore Thermal Power Station (ETPS) Expansion Project. Since the meeting, the unrest has persisted, with many attendees saying they were not allowed to participate, express their views, or raise their concerns. Of the 44 people who spoke at the hearing, only two were women.…

For Emil Vinayaraj, a resident of Jayamahal, regular commute has changed. “I have to take a different route now, avoiding Pottery Road where Namma Metro construction is happening. The situation in the area is far from livable right now for residents, as the dust and pollution is just too much,” he says. Emil’s house is close to three new metro stations along the Pink Line — Shivaji Nagar, Cantonment Station and Pottery Town — and residents of this entire area have been facing the brunt of the ongoing work. Similarly, Sri Shanthini, who lives near the Electronic City metro construction…

Mumbai may not yet be Delhi but it doesn't mean that the air we breathe in the city is healthy. Though Delhi stands out among the most polluted cities during winters with its smog and alarming levels of AQI, the toxicity of Mumbai air is considered to be higher, according to this report from The Times of India. This is because of the increasing concentration of PM2.5 from automobiles, industries, construction activities and garbage burning, all of which affect air quality. Read more: Mumbai’s air pollution: Smog chal raha hai Mumbai's proximity to the sea is no longer a guarantee…

In the larger narrative on climate change and urbanisation, the plight of India’s small and mid-sized cities has mostly slipped through the cracks. Not that the global and national media is oblivious to the stellar rankings, which highlight that 15 of top 20 most polluted cities are in India. However, the specific contexts in which this toxic air has been brewing are not well looked into and understood. While the metropolises hog the spotlight, these smaller cities housing millions are silently choking under a haze of neglect.  Our recent report “Declining Air Quality in Small and Mid-sized Cities” highlights the…

It has been over two centuries since the construction of the Buckingham Canal, a once vital navigational route stretching from Pedda Ganjam in Andhra Pradesh to Marakkanam in Tamil Nadu. At its peak, the canal could carry 5,600 cubic feet per second (cusecs) of water. However, decades of unplanned urbanisation have drastically reduced its capacity to just 2,850 cusecs with the Mass Rapid Transit System (MRTS) being the major encroacher. Map: Shanthala Ramesh Regular desilting is crucial for maintaining the Buckingham Canal, yet its upkeep has been a significant challenge since the early 20th century. Over the years, numerous proposals…

“Panchhi nadiya pawan ke jhonke, koi sarhad na inhe roke…”  (Birds can fly where they want/ water can take its course/ the wind blows in every direction/ no barrier can stop them) — thus go the Javed Akhtar penned lyrics of the song from the movie Refugee (2000, J. P Dutta). As I read about the Panje wetlands in Uran, I wondered if these lyrics hold true today, when human interference is wreaking such havoc on natural environments, and keeping these very elements out. But then, I also wondered if I should refer to Panje, a 289-hectare inter-tidal zone, as…

Global carbon dioxide emissions continue to soar despite climate agreements like Kyoto and Paris. Should this be the path we tread? Since the Kyoto Protocol was signed in 1997, annual carbon dioxide emissions have surged by an average of 1.7%. This is in stark contrast to the 0.9% increase seen in the seven years prior (1990-1997) to the signing of the Kyoto Protocol. The exclusion of the world's biggest polluters — United States, China and India — is the primary cause of the failure of the Kyoto Agreement. Vehicular emissions contribute significantly to air pollution in Bengaluru. Pic: Jyothi Gupta…