Global March Against Chemtrails and Geoengineering makes the following claim on their facebook page:
https://www.facebook.com/GlobalMarc...0482964826830/271465206395271/?type=1&theater
(https://archive.today/fZ2G1)
[bunk]
Global MARCH Against Chemtrails and Geoengeneering
NASA wants you to believe a lie .. that these white lines in the clouds are just contrails. FACT according to science contrails dissipate in seconds.
Events: www.GMACAG.com/events
INFO: www.WhyInTheWorldAreThySpraying.com
FACT - Even under the best of conditions according to science contrails dissipate in seconds. Aerosol Geoengineering aircraft trails get wider as they get older and can persist for many hours or most of the day. These man made toxic trails can go for hundreds of miles in any direction and from horizon to horizon. You could be the solution to this global crime against all living things on this planet. Join the next Global March Against Chemtrails And Geoengineering on September 27 2014 Everywhere![/bunk]
However, science does not say this, it quite unequivocally says that under many conditions contrails can last for hours.
https://www.metabunk.org/threads/de...-a-study-of-70-years-of-books-on-clouds.3201/
1991: National Audubon Society Field Guide to North American Weather
https://www.flickr.com/photos/metabunk/sets/72157644020551293/
1988: Exploring the Sky By Day, Page 49
https://www.flickr.com/photos/metabunk/sets/72157643850292503/
1981: Peterson Field Guide to the Atmosphere, page 137
http://www.flickr.com/photos/metabunk/sets/72157641675780313/
1972: Clouds of the World, page 130
https://www.flickr.com/photos/metabunk/sets/72157641669574294/
1969: Clouds and Weather. Page 28
https://www.flickr.com/photos/metabunk/sets/72157641629656855/
1957: Cloud Study: A pictorial Guide, page 79
https://www.metabunk.org/sk/1957CloudstudyapictorialguideOCR.pdf
1943 - Cloud Reading For Pilots, page 73
http://www.flickr.com/photos/metabunk/sets/72157642316592915/
The above are simply the books I personally own. There are many other books that can be found in scanned form on the internet:
1983: Encyclopedia Britannica:
http://books.google.com/books?id=SBM8AAAAMAAJ&q=contrails "last for several hours"
1975 International Cloud Atlas:
http://library.wmo.int/pmb_ged/wmo_407_en-v1.pdf
1946, Brewer, Condensation Trails: Weather, June 1946
http://www.metoffice.gov.uk/media/pdf/c/3/1946_Brewer_condensation_trails.pdf
So, why exactly are people marching under the banner of an organizations that gets it's science so wrong?
https://www.facebook.com/GlobalMarc...0482964826830/271465206395271/?type=1&theater
(https://archive.today/fZ2G1)

[bunk]
Global MARCH Against Chemtrails and Geoengeneering
NASA wants you to believe a lie .. that these white lines in the clouds are just contrails. FACT according to science contrails dissipate in seconds.
Events: www.GMACAG.com/events
INFO: www.WhyInTheWorldAreThySpraying.com
FACT - Even under the best of conditions according to science contrails dissipate in seconds. Aerosol Geoengineering aircraft trails get wider as they get older and can persist for many hours or most of the day. These man made toxic trails can go for hundreds of miles in any direction and from horizon to horizon. You could be the solution to this global crime against all living things on this planet. Join the next Global March Against Chemtrails And Geoengineering on September 27 2014 Everywhere![/bunk]
However, science does not say this, it quite unequivocally says that under many conditions contrails can last for hours.
https://www.metabunk.org/threads/de...-a-study-of-70-years-of-books-on-clouds.3201/
1991: National Audubon Society Field Guide to North American Weather
https://www.flickr.com/photos/metabunk/sets/72157644020551293/

1988: Exploring the Sky By Day, Page 49
https://www.flickr.com/photos/metabunk/sets/72157643850292503/

1981: Peterson Field Guide to the Atmosphere, page 137
http://www.flickr.com/photos/metabunk/sets/72157641675780313/

1972: Clouds of the World, page 130
https://www.flickr.com/photos/metabunk/sets/72157641669574294/

1969: Clouds and Weather. Page 28
https://www.flickr.com/photos/metabunk/sets/72157641629656855/

1957: Cloud Study: A pictorial Guide, page 79
https://www.metabunk.org/sk/1957CloudstudyapictorialguideOCR.pdf

1943 - Cloud Reading For Pilots, page 73
http://www.flickr.com/photos/metabunk/sets/72157642316592915/

The above are simply the books I personally own. There are many other books that can be found in scanned form on the internet:
1983: Encyclopedia Britannica:
http://books.google.com/books?id=SBM8AAAAMAAJ&q=contrails "last for several hours"

1975 International Cloud Atlas:
http://library.wmo.int/pmb_ged/wmo_407_en-v1.pdf

1946, Brewer, Condensation Trails: Weather, June 1946
http://www.metoffice.gov.uk/media/pdf/c/3/1946_Brewer_condensation_trails.pdf

So, why exactly are people marching under the banner of an organizations that gets it's science so wrong?