ScienceGlobal issuesWhat are contrails and how do they form?02:31This browser does not support the video element.ScienceGlobal issuesRené Wilbrandt10/24/2023October 24, 2023Condensation trails are linear artificial clouds that form from the exhaust of airplanes. Do they have an effect on the climate? This week's viewer question comes from Al Ben M. in Panama.Copy linkAdvertisement
