The climate security of Calcutta and the Sunderbans is intrinsically linked. The city’s air and water pollution levels adversely affect the mangroves, claimed experts at a meeting on Monday. The ...

Kolkata's air quality reached "very unhealthy" levels on Diwali night, with the Air Quality Index (AQI) crossing 400, as reported by the Central Pollution Control Board (CPCB). The city's air ...