“Some days there aren’t contrails forming, some days they’re short-lived, and other days they’re long-lasting and soon covering the whole sky,” Burkhardt says.
The new research may overstate the climate-warming effect of contrails by treating them all like heat-trapping cirrus clouds, says Judith Rosenow, an aeronautical meteorologist at the Dresden University of Technology in Germany, who was not involved in the study. Another way scientists study contrails is by having chase planes fly behind a test aircraft and measure the amount of soot being produced by its engines. Using these flights, researchers have been testing whether contrails can be reduced by switching jets to biofuels made from plants, fat, oil and grease rather than the standard kerosene-based jet fuel that has long been the mainstay of commercial aviation.
During their recent study, Burkhardt and her colleague Lisa Bock at the German Aerospace Center ran a simulation that found biofuel blends for jet fuel could reduce the estimated warming effect of contrails by 14 percent through 2050. But that alone would not be enough to offset the climate impact.where contrails are most likely to form — a challenge when such regions frequently change in size, shape and location.
MACH You people are liars and fraudsters...
MACH
MACH I don’t think jet plains ruin the climate is the refineries blowing clouds of smoke out their haystack
MACH The ignorance of some is just astounding. Contrails and global warming is the stupidest thing I've heard of. It that happens how come Europe wasn't warmer in the winter of '44. Contrails all over the place
MACH Please walk
MACH France will have ecotax on flights next year? If co2 climate change is real a tax isn’t the thing. Air travel must be restricted.
MACH So you Dumbocrats should stop using airplanes, as well as cars, motorcycles & anything else that uses a combustion engine. Especially those such as Pelisi, Obama, Clinton, DeCaprio, Streisand, Clooney & the rest of the Do as I say not as I do merry prankster Dumbos!
MACH This is pitiful. You actually put this BS in print. What a complete joke has become. Sad.
MACH Overpopulation is the real issue
MACH Those cemtrails. digitalburr
MACH 🙄
MACH
MACH Are they also racist
MACH I hope everyone in the media carpools in a Prius.
MACH Article: New research suggests the global warming effect will triple by 2050 Critics of the research caution that the simulations could overstate the threat So, go back to bed and check back in 20 years and we will still be in the same place Al Gore said 20 years ago.
MACH I will choose to fly. You can go travel by horse.
MACH Oh yes
MACH
MACH Fake News. Contrails are clouds and clouds help cool the earth
MACH
MACH Yea sure....simulations
MACH This just in, Alex Jones now writes for NBC News!
MACH Here is a convenient video where the former CIA Director talks about using geo engineering via contrails or chemtrails to release metal particles to block sunlight.
MACH They don't
MACH Ok, I think you fellows need to study some more. Compare the omissions of a volcano eruption to plane trails or industrial omissions and see what you find.
MACH Chem trails turning all the frogs gay
MACH
MACH How is it going to get worse? Is there a climate change symposium for saving the planet Democrats and other globalists from around the world are all taking individual private jets to?
MACH Trump’s beloved friend, Putin! Look at his fruits in Syria two days ago! 5 years old girl saved the life of her infant sister before she die. Their building was attacked by Syrian regime’s air forces that supported by Russia!
MACH Q: Do airplane contrails add to global warming? A: No! .....it’s steam....burning in the cold air at a high altitude.....duh... ....double F’ing duh...
MACH Why would they breach this subject, coming so near the chemtrails issue, and pretend to be oblivious to it?
MACH Smh.
MACH Too funny! Scaremongering!!
MACH 14 months left, correct?
MACH Tin Foil Hat Alert
MACH The airplanes didn’t create the moisture