British researchers say data from more than 29 million people across four continents strengthens the evidence of a link ...

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Many astronomers are growing increasingly concerned that these outdoor lighting from roads, buildings and elsewhere could ...

As heat waves sweep the planet, a new book called ‘Shade’ makes the case for more shade in our cities. As I write these words ...

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.

A groundbreaking study led by Oregon State University scientists shows that multiple Portland neighborhoods have levels of ...

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 ...

The Mediterranean tops the latest ranking, which features some notable surprises from the Black Sea and the Alps.View on ...