Washington, D.C., and the surrounding area were placed under a “Code Red” air quality alert on Sunday after a record-breaking ...

The Fourth of July fireworks display in the capital impacted the amount of fine particulate matter in the atmosphere.

D.C. issued the "Code Red" air quality alert on Sunday morning, hours after the record-setting fireworks display on the ...

President Donald Trump’s America 250 celebration may have left some Washington, D.C. residents trapped indoors as the ...

Residents of Washington, DC, on Sunday briefly experienced the worst air quality of any major city in the world, according to ...

As the United States celebrated the Fourth of July, residents of Washington, DC, on Sunday briefly experienced the worst air ...

Baltimore has declared a Code Red Extreme Heat Alert from July 1 through July 4. Cooling centers, extended pool hours, and ...

An air quality alert has been issued for the D.C. area by the Metropolitan Washington Council of Governments and District ...

The most severe weather alert for excessive heat was issued in the Netherlands for the first time in history on Thursday. The ...

A Code Red Air Quality Alert was issued for the District for Sunday, July 5, as officials warned of unhealthy air conditions ...

The official declaration of a heatwave took place on Thursday in the Netherlands, with daytime temperatures below 30 unlikely ...