In this video, we explore how targeted investments can help limit air pollution, which causes 8 million premature deaths a ...

As global temperatures rise, more regions are experiencing heat levels that exceed the human body's ability to cool itself.

A triple-vortex winter storm loaded with torrents of snow will leave swaths of America petrified in a crippling ice glaze.

Political pressure mounts in Washington to identify what failed, leading to deadliest American air disaster in decades ...

U.S. authorities said on Thursday it was not yet clear why a regional jet and a U.S. Army helicopter collided at a Washington ...