Earth in Action, by Esri’s Maps.com, brings planetary data to life, depicting the rise and fall of temperatures and the swirling of aerosols. A typical map of temperatures across the planet shows just ...

A new report shows air pollution threatens the majority of the world’s population, while information gaps increase the risks.

California and Oregon are among the U.S. hotspots for dangerous submicron (PM1) air pollution—those with particles less than a micron, or a millionth of a meter wide—according to new research.

This screenshot of the Climate TRACE tool shows where pollution is generated and how it moves across the Pittsburgh region. The team behind the pollution-monitoring tool Plume Pittsburgh is taking its ...