Former and current U.S. air traffic controllers say the Trump administration's focus on new equipment doesn't address problems like grueling schedules and stagnating pay that are hurting morale.

Americans in at least eight states face potentially unhealthy levels of air pollution on Wednesday, official data shows. The data is shown in a live map from AirNow—a partnership of multiple U.S.

Millions of Americans across nine states were urged to avoid driving and limit outdoor activities on Wednesday as air quality ...