The Indian Medical Association declared a public health emergency Tuesday after air quality readings soared off the charts.
China's air pollution is really bad, but there might be more solutions in rural areas than in the big cities.
As of Friday, 10 counties had air quality that the Environmental Protection Agency considers "unhealthy."
Is it possible to avoid a traffic jam? According to some scientists, it's all about giving your neighbors some room on the road.
Researchers found some B vitamins helped curb the negative health effects linked to fine particulate matter.
Pollution from Asia contributed to up to 65 percent of the smog increase in the western U.S.
Population growth, a reliance on coal for energy and weak government regulation are all contributing to the increase.
Graviky Labs has figured out a way to turn air pollution into something useful.
Officials are asking Beijing residents not to set off fireworks during the nation's biggest celebration.
Colorado lawmakers began to ask state officials about the ongoing need for vehicle emissions testing after mechanics told Denver7…
One road in the city had especially high levels.
The city has seen alarming spikes in smog levels this year, so it's offering some drivers free parking for a day.