Some countries are known for having dangerously high pollution levels, poor sanitation, and large amounts of unmanaged waste. These problems are usually caused by overpopulation, industrial activity, ...

Cities in Asia and the United States emit the most heat-trapping gas that feeds climate change, with Shanghai the most polluting, according to new data that combines observations and artificial ...

In a startling development, all forty cities ranked among the world’s most polluted on October 30, 2025, were from India, highlighting the country’s escalating air quality crisis. According to AQI ...