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 ...

Already, Hillingdon Council, which oversees the Heathrow site, has "restated its firm opposition to Heathrow Airport ...

MEMPHIS, Tenn. — A Memphis Police officer lost control of their squad car and overturned in a parking lot of an apartment ...

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