Acid rain is one of the most destructive environmental threats to forests and their inhabitants. From weakening trees to harming wildlife, this invisible danger is reshaping entire ecosystems. Learn ...

Skiers may delight in the snow forecast, but the latest in a series of atmospheric rivers threatens to bring flooding and ...

The rise in carbon dioxide levels in our atmosphere is also helping to acidify our oceans even further, resulting in more ...

San Francisco could see as much as six inches of rain over the next week as a moisture-packed storm known as an atmospheric river works its way south from the Pacific Northwest.