Late each winter, Bengaluru briefly transforms into an Indian Kyoto, as roads blush pink, office parks turn photogenic, and social media buzzes with claims of a local “cherry blossom” season. But the star of this spectacle is not cherry at all. It is Tabebuia rosea, the pink trumpet tree, a neotropical ornamental whose native range runs from Mexico to Ecuador. What seems like a harmless aesthetic win is, ecologically, far more complex. The history Bengaluru’s pink canopy is not new. Much of it can be traced back to the 1980s under forester S G Neginhal, who drove a major greening…

Across cities, official Air Quality Index (AQI) readings often overlook local hotspots. Chennai has eight Continuous Ambient Air Quality Monitoring Stations (CAAQMS) that function 24/7 throughout the year. But this isn’t enough to map particulate matter. Air changes every few metres, as researchers from the Indian Institute of Technology-Madras tell us. Seasonal variation, construction, vehicular movement, and proximity to industries also change the air we breathe, In 2022, over 17 lakh people died in India due to air pollution (PM 2.5), according to a Lancet study. With better hyper-local air data and public awareness, citizens and policymakers can target pollution…