The world's oceans are hotter than ever before, continuing their record-breaking temperature streak for the sixth straight year. 

New research from NOAA and CIRES finds that wildfire smoke is much more widespread and plays a much bigger role in contributing to ozone pollution than previously thought.

Arlene Fiore uses satellite data paired with ground observations to refine our understanding of ozone smog and interactions with meteorology and climate.

Modelling studies highlight the urgent need to improve air quality in cities and reduce exposure to pollution, particularly among children and the elderly.

Carbon dioxide (CO2) levels today are higher than at any point in the past 800,000 years or more.

Even while skies are clearing over China, one type of particulate pollution continues to cause problems.

Nearly 2 million new cases of pediatric asthma every year may be caused by a traffic-related air pollutant—a problem particularly important in large cities around the world—according to a new study published by George Washington University Milken Institute School of Public Health researchers.

Large wildfires and severe heat events are happening more often at the same time, worsening air pollution across the western United States, a study led by Washington State University researchers has found.

Climate change and air pollution are two major societal problems. 

Dairy farmers in the Northeast — facing a warming climate that exacerbates nutrient pollution but lengthens the growing season — can reduce the environmental impact of their operations and maximize revenues by double cropping and injecting manure into the soil, rather than broadcasting it.