Wildfire smoke creates fine particulate matter that can linger in the atmosphere and spread from coast to coast. According to the US Environmental Protection Agency (EPA), in large quantities ...

Dozens of wildfires have been burning their way through swathes of the US West Coast over the last month, killing more than 30 people and forcing tens of thousands from their homes. Lightning ...

Los Angeles' National Weather Service issues warning Tuesday evening that southern California was still at "very extreme fire danger." ...

A red flag warning and burn bans are impacting the Lower Hudson Valley as at least three wildfires continue to burn due to ...

Cooler weather and higher levels of humidity are helping firefighters contain the Franklin fire, which caused thousands of ...

Maps show the terrifying spread of a wildfire tearing itself across California and forcing authorities to order evacuations. The fire is spreading across Butte County in Northern California ...

The eastern U.S. has more trees and shrubs than three decades ago. This growth, driven by processes such as tree and understory infilling in unmanaged forests, is helping fuel wildfires, contributing ...

As the haze descended on the US Capitol building in Washington DC, US President Joe Biden described the fires as a "stark reminder of the impacts of climate change". The smoke has caused the ...

Red flag warnings are set to remain in place across much of Southern California through Tuesday night amid strong Santa Ana winds.