The Lego Arcanine build, which is set to release on Aug. 1, looks like an absolute delight to piece together. It's a ...

The Washington, D.C., area dealt with terrible air quality Friday because of wildfire smoke drifting from Canada, sparking warnings to stay indoors. The air in D.C. was rated very unhealthy, or code ...

Canadian wildfire smoke caused poor air quality across Maryland, prompting closures, cancellations and adjustments to outdoor plans on Friday. Most of Maryland started Friday under a Code Red air ...

Pennsylvania is under a statewide Code Purple air quality alert on Friday because of smoke from the wildfires in Canada and Minnesota. But what does that mean? What is Code Purple air quality? The ...

Wildfire smoke or ozone pollution can cause air quality to drop due to all the particles in the air. The Pennsylvania Department of Environmental Protection issues air quality alerts when the air ...

While with triple-digit temperatures are gone, the Canadian wildfire smoke remains in Delaware for at least another day. While the First State no linger is in excessive heat warning, Delaware will ...

Air quality alerts use color-coded categories to show when pollution levels may be unhealthy. Code Orange is unhealthy for sensitive groups, while Code Red is unhealthy for everyone. Code Purple means ...

Maryland is under a Code Red air quality alert because of smoke from wildfires in Canada and the northern United States. Code Purple, meaning very unhealthy air, is forecast for Western Maryland.

(WHTM) — If you thought air quality was bad in Code Red conditions, there are two worse levels. The Pennsylvania Department of Environmental Protection (DEP) uses the U.S. Environmental Protection ...

UPDATE: Thursday's air quality alert has been upgraded to Code Purple for multiple counties in Pennsylvania, the state Department of Environmental Protection said. The list includes Butler, Clarion, ...

Plants convert light into energy efficiently through photosynthesis—an ability that scientists and engineers still struggle to match with electronic devices. Recently, researchers have looked beyond ...