https://peertube.dngr.us/videos/watch/6cfc47a6-0b56-430e-9e28-332fb8fa27fd A classic 1980 news report on how contrails create cloud cover, which has an effect on the weather. Aired on 12/30/1980 This is the research referenced: https://www.isws.illinois.edu/pubdoc/CR/ISWSCR-236.pdf Transcript: JOHN CHANCELLOR, anchor: On clear days, you can often see long white lines being traced high in the sky. They are contrails of jet aircraft. They're actually long, slender clouds. Other men are finding them especially fascinating because the theory is being developed that those long, white lines may be changing our weather for the better. Details from Roger O'Neil. ROGER O'NEIL, reporting: The exhaust from jet engines, usually seen as long, thin trails of white clouds behind high-flying jet airplanes, may be a big reason why there are 30 fewer days of sunshine a year in the Midwest now than there were in 1900. The daily range between high and low temperatures has also narrowed. Weather researchers, studying cloud cover in 10 Midwestern states, found a sharp increase in cloudiness with the increase in commercial jet travel, particularly in the main East-West jet corridor, there were even more clouds. A jet produces a contrail or cloud because its exhaust consists primarily of water vapor. RICHARD SEMONIN (Illinois Institute of Natural Resources): In the absence of natural clouds, given the correct atmospheric condition, jet aircraft in high frequency can almost completely cover the atmosphere, visible atmosphere, with clouds. O'NEIL: Semonin says, unlike most changes in the atmosphere caused by man, this one is beneficial. Clouds help farmers in the Midwest by blocking the sun. Temperature extremes can damage plants and speed up the evaporation of soil moisture. In the Winter, city people benefit because clouds act as a blanket, preventing warm air from escaping into the atmosphere. No one is trying to make clouds now using jet engines, but this study suggests that jet travel is inadvertently making our days more cloudy and some day, weather researchers may be able to use jets on purpose to change our weather. Roger O'Neil, NBC News, Champaign, Illinois. - - - - - - - - 𝙎𝙤𝙪𝙧𝙘𝙚: https://youtu.be/L6X5QZDQ6mw 𝙍𝙚𝙨𝙚𝙖𝙧𝙘𝙝 𝘼𝙪𝙙𝙞𝙤 + 𝙋𝘿𝙁𝙨: https://tiny.cc/PDFdump 𝙂𝙚𝙤𝙚𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜 𝙋𝘿𝙁𝙨: https://archive.org/details/GeoengineeringPDFs 𝙂𝙚𝙤𝙚𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜 ( 𝘾𝙡𝙞𝙢𝙖𝙩𝙚 𝘾𝙝𝙖𝙣𝙜𝙚 ) 𝙋𝙡𝙖𝙮𝙡𝙞𝙨𝙩: https://youtube.com/playlist?list=PLQdiHk246wHt1hVbDxgsHduvukBVigl6u 𝙃𝙚𝙖𝙡𝙩𝙝 & 𝙒𝙚𝙡𝙡𝙗𝙚𝙞𝙣𝙜 𝙋𝙡𝙖𝙮𝙡𝙞𝙨𝙩: https://youtube.com/playlist?list=PLQdiHk246wHurz6sjv-uK6oit2lvuADDC 𝙉𝘼𝙎𝘼 & 𝘾𝙤. 𝙋𝙡𝙖𝙮𝙡𝙞𝙨𝙩: https://youtube.com/playlist?list=PLQdiHk246wHtb3L19NlRpwH3UFf-mmuOg 𝙎𝙥𝙤𝙩𝙩𝙚𝙙: 𝙂𝙚𝙤𝙚𝙣𝙜𝙞𝙣𝙚𝙚𝙧𝙞𝙣𝙜 𝙋𝙡𝙖𝙮𝙡𝙞𝙨𝙩: https://youtube.com/playlist?list=PLQdiHk246wHtQl39GQ7XOzu8jogtcEJz6 - - - - - - - - "Clouded Judgement: Do Jet Contrails Increase Cloud Cover? | NBC News" (1980) ✈️⚠️ https://archive.org/details/GeoengineeringClimateChange1980 "NASA Space Shuttle Rocket Booster [Cloud Generator] Test" (2001) 🌧️ https://archive.org/details/NASA-Geoengineering "Global Assessment of the State-of-the-Science of Endocrine Disruptors" (2002) 🧠 https://archive.org/details/EndocrineDisruptors "Syngenta's Atrazine: Hormone Disruption, Low Fertility Rates, Cancer, Groundwater Pollution, & U.S. Environmental Protection Agency [EPA] Complicity | Dr. Tyrone Hayes" (2008) 💧 https://archive.org/details/FLOW2008 "Innovating to Zero! | Bill Gates | TED Presentation" (2010) 💉✈️🌽⚠️ https://archive.org/details/BillGatesClimateChange "RTÉ Weather Reports on Artificial Clouds Produced by 'So-Called' Contrails" (2011) ✈️⚠️ https://archive.org/details/GeoengineeringClimateChangeRTE "The Georgia Guidestones" (2012) 👁️ https://archive.org/details/GreatCullingFluoride "10 Climate Myths Busted [in 60 seconds!]" (2013) 🌎 https://archive.org/details/10ClimateMythsDebunked "Weather 101: A Tutorial on Cloud Types" (2013) 🌧️ https://archive.org/details/Weather101Clouds "Weather Basics: Clouds & Precipitation" (2014) 🌧️ https://archive.org/details/WeatherBasicsClouds "Global Warming Revisited | Ivar Giaever | 65th Lindau Nobel Laureate Meeting" (2015) 🌎 https://archive.org/details/GlobalWarmingRevisited "What's Motivating Hayes? 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(2016) 💉⚠️ https://archive.org/details/VaxxedCDC "The African American Effect" (2016) 💉⚠️ https://archive.org/details/VaxxedCDC "Vaxxed: From Cover-Up to Catastrophe" (2016) 💉⚠️ https://archiv... Date: 1980-12-30 Mirrored from Internet Archive: https://archive.org/details/GeoengineeringClimateChange1980 Wed, 15 Jul 2026 12:48:54 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/ec5edb1e-3795-4978-be4f-c67e98fbc992.png https://peertube.dngr.us/videos/watch/6cfc47a6-0b56-430e-9e28-332fb8fa27fd All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.