In a study of almost 2,000 kids in El Paso, Texas, researchers found a strong correlation between air pollution and academic performance.
Ten years later, some women say they feel like they were better off before the storm.
Our map shows the formaldehyde-laced trailers went on an odd journey, and our reporter explains why.
And it wasn't good to begin with.
This African-American sorority turned an old gas station into a sleek eco-paradise.
Many cities have a pissing problem. Here's what some are doing about it.
When well-off white people flee to the suburbs, it's bad for those left behind in inner cities and bad for the environment too.
In a dense city that already has lots of transportation options, are Uber cars just adding to pollution and congestion?
A new company collaborates with Google to try to deliver air quality data at a new level of pinpoint detail.