Deep mudslides and flash flooding hit Southern California Thursday after drenching thunderstorms fed by the moisture of former Eastern Pacific Tropical Storm Mario spread over the region.

Hand in hand with brilliant foliage, fall delivers the first signs of winter to much of the United States — but the seasons are changing, and not as they normally do.

For a moment, it seemed like a blast from the past: a plume over Mount St. Helens on Tuesday looked like the volcano might be ...

Atlantic hurricane season has hit a September speed bump. The season’s peak will pass this week with no active storms for the ...

They’re snacking on potato chips, stretching out on a plaid picnic blanket after a dip in the English Channel. “Looking at the photograph, it really epitomizes who we are as sisters,” Pamela Cook ...

For the first time, scientists have quantified the causal links between worsening heat waves and global warming pollution ...

Crop prices were crashing in 1985, with bank foreclosures wiping out family farms at alarming rates and pushing farmer ...

A record-breaking and astonishingly expansive marine heat wave is underway in the Pacific Ocean, stretching from the water around Japan to the US West Coast. The abnormally warm “blob” of ocean water ...

The crisp weather many in the United States enjoyed over the last week or two was just a sneak peek of fall: Late summer heat is making a comeback.

“New England bet the farm on offshore wind,” said Sam Evans-Brown, executive director of the nonprofit Clean Energy New Hampshire. “I think that people thought it’s going to be much easier to build ...

Ice creams, frozen desserts and super-chilled sodas take on a new appeal in the sticky summer heat. As global warming drives ...