A groundbreaking new study spanning more than a decade and hundreds of miles of the Florida Coral Reef demonstrates the key role benthic communities play in reducing the impacts of climate change on coral reef ecosystems, specifically ocean acidification.

The hydroxyl radical (OH) molecule has a short lifespan but a long impact. It reacts with with harmful gases and helps clean Earth’s atmosphere. A new study examines OH changes in a warming climate.

Very warm December temperatures led to record-low ice cover across the Great Lakes to start the year. While a recent cold snap has kick-started some freezing, ice cover remains under the historical average. Will this late start have any impact on this year's final ice extent?

Earth's surface temperature has risen about 2 degrees Fahrenheit since the start of the NOAA record in 1850. It may seem like a small change, but it's a tremendous increase in stored heat.

In a record going back to 1850, Earth hasn't had a year colder than the 20th-century average since 1976—almost half a century.

Days with the most prominent Saharan dust correlated with fewer thunderstorms in the Atlantic and less rainfall across Puerto Rico, a pattern that has become more frequent over the past 40 years.

At ground level, the mobile lab can often measure emissions closer to the fire source, and it can be used at night when flying an aircraft near a wildfire may be hazardous. Lab results show that wildfire emissions vary based on whether the fire is flaming or smoldering.

Two new projects will provide useful observations to enhance monitoring and modeling of precipitation events. Each one will expand existing analysis data.

The latest forecast says a major disruption of the polar vortex is on its way, but the stratosphere has been acting up for a while. Our bloggers explain what it might mean for U.S. weather.

El Niño is near peak strength. Our blogger covers current and potential future conditions in the tropical Pacific.