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When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those breathing it.

Millions of Americans across the Midwest, Northeast and swathes of the South and Southwest are under air quality alerts Monday. Newsweek's live blog is closed.

Black carbon, the sooty byproduct of incomplete combustion of fossil fuels, has emerged as a major contributor to climate ...

Russia attacked Ukraine's capital with missiles and drones overnight, killing at least six people including a 6-year-old boy ...

Russia attacked Ukraine’s capital with missiles and drones overnight, killing at least nine people, including a 6-year-old boy, and wounding 124 others, authorities said Thursday.

Eighty years ago, on Aug. 6, 1945, as the Enola Gay winged its way back to the Pacific Island of Tinian, pilot Paul Tibbets ...