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 ...

Add Yahoo as a preferred source to see more of our stories on Google. I recently wrote a column about the “chemtrail” conspiracy theory, and to say it caused quite a stir would be a serious ...

JACKSONVILLE, Fla. – The sunrise never quite made its grand entrance over the First Coast Thursday morning. Instead, a thick blanket of clouds kept the sky in shades of gray. But while we couldn’t see ...

Non-experts define contrails as condensation trails that form due to the steam left behind by aircraft and which take shape ...

American Airlines and Google said Thursday that they significantly reduced the climate impact of some of the airline’s flights using an AI-based forecasting tool to help prevent contrails. When ...

The challenge of addressing aviation’s non-carbon dioxide emissions is receiving greater attention, with the climatic impact associated with tell-tale signs in the sky coming under increased study.