The heat index will push into the low 90s. A Code Orange Air Quality Alert has been issued for Allegheny, Beaver, Butler, Washington, Westmoreland, Fayette and Armstrong counties for Sunday.

The City of Yes plan has increased interest in air rights deals, particularly in Manhattan, by expanding the range of lots that can receive transferable development rights from landmarked ...

In recent months, eight U.S. cities have experienced unnaturally colored skies—ranging from eerie green glows and purple sunsets to persistent orange haze. Experts suggest causes like pollution ...

But it also exposes the secret history of forever chemicals, some of which is deeply relevant to New Mexico. As Blake explains, PFAS were developed during the Manhattan Project, and serious ...

People in Lancaster County are among those being advised to limit outdoor activity today after the state Department of Environmental Protection declared a Code Orange Air Quality Day.

The Pennsylvania Department of Environmental Protection has issued a Code Orange Air Quality Alert for the Susquehanna Valley.

By ELÉONORE HUGHES RIO DE JANEIRO (AP) — A hot-air balloon caught fire and tumbled from the sky on Saturday in Brazil ’s southern state of Santa Catarina, killing eight people, firefighters ...

SUMMARY: The Environmental Protection Agency (EPA) is proposing to approve the Indiana regional haze state implementation plan (SIP) revision submitted by the Indiana Department of Environmental ...

The Environmental Protection Agency (EPA) is proposing to approve the Regional Haze State Implementation Plan (SIP) revision submitted by the Michigan Department of Environment, Great Lakes, and ...

El Paso sees worsening air quality amid New Mexico forest fires.