Every night, cities around the country light up with street lights, office and building lights, and parking lot lights ...

Add Yahoo as a preferred source to see more of our stories on Google. On New Year's Day, several people messaged me to ask if I had noticed how bad the air quality was in Phoenix after the previous ...

As Delhi-NCR's toxic air sparks warnings for children, the elderly and those with respiratory illness, veterinarians and animal welfare groups are flagging a quieter crisis unfolding among pets and ...

Stay informed on Air Pollution with the latest AQI updates, causes, symptoms, health effects, and prevention tips. Read ...