Earth’s hottest periods occurred before humans existed. Those ancient climates would have been like nothing our species has ever seen.

Temperatures were above average over much of the globe, but much below average over the United States, Greenland and far eastern Russia. Arctic sea ice extent was below average, ranking second lowest on record.

Even in years with record-breaking fire seasons, overall fire occurrence remains below historical levels, but fire severity has increased, contributing to greater forest loss and heightened risk.

NOAA has released a new report on Southwest livestock producers’ experience with the Livestock Forage Disaster Plan.

New research combines ocean and climate data with computer models to understand how two different types of Atlantic Niño form.

New research indicates Elkhorn coral outplanted in shallow, low-nutrient waters and high velocity currents have a higher probability of survival.

Released in 2023, the Fifth National Climate Assessment (NCA5)'s Art × Climate gallery encourages people to engage with climate in a new way. This work by Meredith Nemirov imagines a Colorado landscape with abundant water and resilience to drought.

The troposphere, not the stratosphere, can be thanked for the cold weather this week.

Scientists widely agree that human-caused warming is generally making fires in California and the rest of the West larger and more severe. Figuring out how important long-term warming is to individual cool-season fires like the Eaton and Palisades Fires is a little more complicated.

The northwestern United States (including the states of Washington, Oregon, and Idaho) is home to nearly 14 million Americans. The region's diverse landscapes and inhabitants are variously affected by changing climate.