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Contrails nasa2004October13
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Contrails nasa2004October13

Contrail Clutter over Georgia. Photo from MODIS/Terra Satellite (NASA) Explanation from NASA: Artificial clouds made by humans may become so common they change the Earth's climate. The long thin cloud streaks that dominate the above satellite photograph of Georgia are contrails, cirrus clouds created by airplanes. The exhaust of an airplane engine can create a contrail by saturating the surrounding air with extra moisture. The wings of a plane can similarly create contrails by dropping the temperature and causing small ice-crystals to form. Contrails have become more than an oddity - they may be significantly increasing the cloudiness of Earth, reflecting sunlight back into space by day, and heat radiation back to Earth even at night. The effect on climate is a topic of much research. this year (2004), NASA made measure of abundance of contrails with people participation in a contrail counting exercise during two days.

Date
January 29, 2004
Mapmaker / publisher
NASA
Archive
Wikimedia Commons
Type
map
Original size
1,200 × 947 pixels

Public domain

Reason: public domain: NASA.

This status rests on the map's publication history, as researched by Wikimedia Commons. Check it before commercial use.

Read from: Commons licence category: PD NASA; no CC BY, CC BY-SA, GFDL or deletion tag on the file page.

Credit line

"Contrails nasa2004October13" (January 29, 2004). NASA, via Wikimedia Commons. Public domain. https://commons.wikimedia.org/wiki/File:Contrails_nasa2004October13.jpg

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