Increased solar activity causes auroras that dance around Earth’s poles, known as the northern lights, or aurora borealis, ...

Without warm currents from the South Atlantic, Iceland would be much icier and stormier. Now, those currents are at risk of collapse and the country is preparing for this “existential threat.” ...

A deadly tornado tore through a state in southern Brazil, killing at least six people and injuring more than 400 others, local authorities said.

Three climbers, including a foreign national, were killed and eight others were missing after an avalanche hit a climbing expedition on a Himalayan peak in Nepal, police said on Monday.

Hurricane Melissa is expected to make landfall in Jamaica Tuesday, bringing severe winds and flooding. For survivors, the dangers don’t end when the storm passes — hidden hazards like mold, structural ...

Melting ice sheets. Massive flooding. Dead coral reefs. Humanity is careening toward an untenable future as global temperatures rise, scientists warn ...

More than 1,000 flights have been canceled and at least 5,000 delayed today, mostly due to a combination of air traffic controller staffing issues and an FAA-mandated 4% cut to flights because of the ...

A second typhoon in a week is churning toward the Philippines, with residents in its path warned to flee the looming destructive winds and life-threatening storm surges.

• Moving north: Melissa is an “extremely dangerous” Category 3 hurricane as it closes in on Cuba, the National Hurricane Center warned, after the storm made a historic landfall in Jamaica as one of ...

• Moving on: Melissa is now centered off the northern coast of Jamaica after barreling ashore as one of the strongest Atlantic hurricanes in history. Melissa is still a powerful Category 3 hurricane ...