A form of harmful air pollution that often can't be plainly observed is now being tracked with a groundbreaking new tool developed by scientists that allows residents to see where it's coming from.

A new interactive map and groundbreaking database allows people in the world’s largest metropolitan areas to track their air pollution exposure, along with their region’s biggest sources of ...

Do you know how many super polluters are on your doorstep? A first-of-its kind tool, from a group backed by former vice president and climate activist Al Gore, wants to show you just that. And the ...