PHOENIX (AZFamily) — There have been all kinds of theories about jet contrails over the years. In reality, they have a very simple scientific explanation. You will often see a white streak trailing ...

Marc Shapiro is the Director of the Breakthrough Energy Contrails team, one of American’s partners on contrail avoidance. Below, he answers our questions on the science behind contrail avoidance ...

For decades, people believed that plane contrails are chemicals being secretly released into the atmosphere. Reality is ...

From the development of new materials that make airplanes lighter to the exploration of alternative fuels, the aviation industry is making strides toward reducing its carbon footprint. One aspect of ...

The Environmental Protection Agency is working to dispel conspiracy theories about contrails and geoengineering by releasing new online resources on Thursday, July 10. The EPA said the move is to show ...

Contrails, or condensation trails, are formed when water vapor in aircraft exhaust condenses and freezes into ice crystals in cold, high-altitude air, with their persistence determined by the air's ...

The white trails left by high-flying airplanes may be a pretty sight in a blue sky, but bomber crews dislike them for good reason: an airplane may look from the ground like an almost invisible speck, ...