Contrails left by airplanes sometimes form funny patterns in the sky. This Wednesday, around 3pm, it was a big zigzag. Had the passenger plane, which obviously left Marseille airport heading north, veered sharply? Strong winds are more likely to be the cause of this “break” in the cloud.
These trails contribute to global warming
As beautiful as they are, these trails formed by water vapor adhering to fine particles, nevertheless contribute to global warming, according to a study published by the journal Nature in 2018. Their impact would be even slightly higher than that of carbon dioxide emitted by reactors , by combustion of kerosene.