Operation Deimos

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts says climate change means U.S. residents better get used to it.

State regulators just finalized a plan to reduce harmful air pollution from oil and gas operations in Colorado.

A new study on air quality found that eight of the 10 most polluted cities in the U.S. were in California.

Authorities have ramped up efforts in pollution control and emissions reduction in the ‘battle for blue skies’...

Iraqi grocery store owner Abu Amjad al-Zubaidi is grappling with asthma, a condition his doctor blames on emissions from a nearby power plant...

Scottish researchers find childhood pollution a likely factor, but association with mid-life air quality less clear...

Residents of Delhi complain of breathing problems as pollution levels cross hazardous mark.

A new study from Karolinska Institutet shows that long-term exposure to air pollution contributes to millions of deaths in India. The research, published in The Lancet Planetary Health, emphasizes the need for stricter air quality regulations in the country.

India’s capital New Delhi is swamped by smog, and air pollution kills 2 million Indians a year. 

GRAP-IV, or the fourth stage of anti-pollution measures in effect for Delhi and the National Capital Region, will remain in force for the next 72 hours, the Supreme Court said Friday, with the AQI in the city and surrounding areas at 371

The Delhi government announced today that 50 per cent of its staff will work from home today as the national capital continues to grapple with severe air pollution.

Many power plants benefiting from exemptions rank among the nation’s worst polluters. The Trump administration says cheaper energy is the goal.

The party-line vote marked the first time in the 55-year history of the Clean Air Act that Congress has moved to weaken the power of the landmark environmental law.

Limiting exposure to air pollution will have lasting impacts on Colorado communities with the highest exposure.

An advisory about fine particle air pollution from the highest-ranking physician in the United States would be a powerful tool in helping policymakers and communities better protect the health of...

It's a method that's largely unproven, but Thailand's government is willing to try anything after air pollution in the capital reached eight times the daily maximum average recommended by the WHO.

Deaths from air pollution have fallen in the EU, but mortality rates were highest in Bulgaria, Poland, and Hungary.

Sarajevo faced severe smog on Thursday, with flights cancelled as the city's air quality index reached 225, the third highest in the world on the day.

A new analysis has highlighted air and noise pollution in top tourist cities across the globe.

In winter on the Utah Wasatch Front, on average we have 5 days, particularly in Salt Lake County, when the air is unsafe to breathe.

Leaders of Indian capital must tackle transport and heavy industry rather than seek quick fixes, say campaigners...

On a good day, such as today, the AQI reading in Delhi is 407. We are jubilant at the sickly sunshine trickling through the slightly dissipated smog.  .