Cross-country skiing conjures images of graceful strides through frosted woods, surrounded by pillowy layers of soft snow that will cushion the fall of the most ungainly novice. But with increasingly ...

Because bone-shattering cold occurs less frequently, Americans are experiencing it more intensely now than they did in the ...

Climate change is shaking up the seas, changing fish distribution throughout the oceans. And fishers in the tropics are ...

It took unprecedented engineering might and precarious debris removal to once again connect northern Big Sur with its ...

Scientists say the new index for El Niño and La Niña is a better indicator of ocean temperature extremes and atmospheric ...

Forests around the world are quietly transforming, and not for the better. A massive global analysis of more than 31,000 tree ...

A new index will help scientists and forecasters better identify El Niño and La Niña events in the future as the climate ...

A dry January means concerning news for some of California's wildfire risk indicators, whereas others are performing well.

Hard on the heels of the EU Copernicus report’s finding that global heating is advancing even faster than predicted, Storm ...

Snowpack in the Colorado Rockies is closely monitored, with about 40 million people in seven U.S. states and about two ...

In 2009, the U.S. Environmental Protection Agency formally declared that greenhouse gas emissions, including from vehicles ...