Articles by Gangadharan B

Once celebrated as the 'Garden City' for its lush greenery and rich biodiversity, Bengaluru is grappling with the realities of urbanisation. Now, residents struggle to find a spot of shade amidst the onslaught of concretisation. An Indian Institute of Science (IISc) study suggests that Bengaluru has lost a staggering 80% of its forest cover since the 1970s. Trees are the first casualties of the rapid development and mega-construction projects of Bengaluru. That's why conducting a tree census in the city is crucial. Such an exercise regulates tree felling and helps monitor tree health, assess species diversity, and inform resilient urban…

As our cities struggle to curb the menace of alarming levels of air pollution, a transition to electric vehicles is seen as a much-needed step towards cleaner air, as it would significantly cut down carbon emissions. According to a source apportionment study by CSTEP, Bengaluru’s vehicular emission contributes to 40% of PM2.5 pollution and 19% of PM10 pollution in the city, thus posing a great threat to public health and the environment. Electric vehicles (EVs) could bring considerable relief by completely cutting down on tailpipe emission. But a smoother transition from fossil fuel driven vehicles demands adequate and affordable EV charging infrastructure.…

A long weekend drive on the highway sounds like a good way to unwind, but the massive, often overloaded trucks and other commercial vehicles belching black-grey smoke can make city roads less pleasant.  While commercial vehicles are crucial for the supply of essential goods across cities, they also cause major pollution. In Bengaluru, commercial vehicles make up just 4% of the total vehicle population but contribute a staggering 49% of the city's PM2.5 vehicular emissions. A recent study published by the National Institute of Advanced Studies (NIAS) revealed this fact.  Particulate matter from vehicle emissions penetrates deep into the lungs…

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…

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…

Dust from construction debris, damaged roads, major traffic congestion, and vehicles and machinery occupying footpaths. Pedestrians contend with all this and more on busy roads, where the Chennai Metro Rail work is ongoing. Spanning around 116 km across three different corridors and 118 stations, the Chennai Metro Rail’s Phase II is a major development project in the city. “Inconvenience today for a better tomorrow” — is a slogan displayed prominently in the Metro Rail construction zones. However, it is more than a mere inconvenience. Pedestrians put themselves at peril every day as they navigate dangers on the road because of…