Aqi By City
A tracked data dataset for our pollution coverage: what it measures, where the figures come from and when they were last checked.
India city climate readiness tracking at 34%
India's government measured climate readiness in 226 cities but halted the program after 2023, leaving no current data on urban climate action...
Delhi's 1918 influenza pandemic killed 7,044
In 1918, an influenza pandemic killed 7,044 people in Delhi city, leading British authorities to declare it a notifiable disease in 1920.
El Niño reduces Pacific phytoplankton
NASA satellite data shows a major drop in chlorophyll across the Central Pacific in June 2025, indicating a decline in phytoplankton due to the...
Mumbai bus drivers resist electrification push
Mumbai's iconic BEST bus drivers face precarious conditions as the city transitions to electric buses through private contracts, sparking protests...
Delhi Road Network Plans to Improve Accessibility and Reduce Pollution
The Delhi Development Authority is set to draw plans for existing and new road networks in the city, aiming to improve accessibility and reduce...
Camera traps reveal hidden population of greater hog badgers in Kaziranga
A new study in Assam’s Kaziranga National Park and Tiger Reserve estimates at least 55 greater hog badgers in the area, using camera trap data from...
Pollution and Uncertainty in Brazil's Steel City
Volta Redonda, a city in Brazil's Rio de Janeiro state, is plagued by pollution from the country's largest steelmaker, CSN. Residents and...