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United Airlines says operations at Newark Airport are running smoothly after recent delays and cancellations caused by air traffic control problems and runway construction.

This week, hundreds are launching colorful hot air balloons in the 53rd annual Exxonmobil Albuquerque International Balloon Fiesta.

After nearly a century on the air, CBS News Radio will shutter in May.

Joby Aviation said this week that it got the green light to flight test its factory-made air taxi, which it hopes to launch commercially in 2025. It's one of several companies reaching for the skies.

Children in particular face health risks from wildfire smoke. Short-term exposure can trigger coughing and asthma attacks, while repeated encounters may reduce lung function.

Ukraine is still recovering from the latest Russian airstrikes. Ukraine's air defenses have proved more resilient than expected. But can it cope this winter with an onslaught on the electricity grid?

Over the next several days, temperatures are expected to drop 10 to 15 degrees as relative humidity rises. This should result in less smoke as the fire's activity decreases.

The hazy conditions created by wildfires burning in California are slated to start clearing from the Willamette Valley and Oregon Coast in the next few days.

A new study conducted in Portland neighborhoods confirms that the more traffic there is on a street, the more air pollution cyclists are breathing.

When people in Buenos Aires are thirsty for the American soda, they have long ordered something they call "Pecsi." Not "Pepsi." The idiosyncratic pronunciation has become the focus of a Pepsi ad campaign.