Bangkok was ranked as the fourth most polluted city in the world, according to IQAir. The air quality index (AQI) in Bangkok ...

Exercise is an essential part of a healthy lifestyle, with many enjoying activities like running, cycling, or playing sports ...

Specialized air quality instruments captured a spike in lead, chlorine, and bromine pollution during the L.A. wildfires. As fires burned tens of thousands of acres across Los Angeles County, officials ...

Aug. 2, 2024 — Scientists confirmed that much of ozone's increase in the upper troposphere is likely due to humans. A team detected a clear signal of human ... New Study Disputes Hunga Tonga ...

Senior writer John Oehser answers your questions.