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Pacific Ocean Crisscross Clouds Reveal the Human Imprint |
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They may look like jet contrails, but the crisscross clouds in the image above actually were left by ships making way in the Pacific Ocean off the coast of California. Clouds like this form when little droplets of atmospheric water vapor condense around tiny pollution particles in ship exhaust. These droplets are smaller and more numerous than those in natural clouds, which means there are more surfaces to reflect sunlight. As a result, these cloudy ship tracks are brighter than natural clouds. While the crisscross clouds may look beautiful from space, they are actually indicative of a serious problem. Commercial ships around the world spew nearly half as much particulate pollutants into the air as all the cars in the world, according to research by scientists at the National Oceanic and Atmospheric Administration and the University of Colorado. More than 70 percent of ship traffic takes place within 250 miles of the coastline. That concentration of shipping creates health concerns for local coastal cities and town Particulate pollution isn?t the only issue. Ships emit about twice as much carbon dioxide into the atmosphere as do airplanes, thereby contributing to global warming. And those emissions could rise significantly in the next decade or so, thanks to growing world trade. |
 
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13 Comments
Good share.
Posted 08-01-2014 19:34
Agreed
Posted 06-01-2014 14:28
thanks for the information
Posted 31-12-2013 20:45
you are absolutely right Eco gen.
Posted 31-12-2013 15:02
Humaid, please don't copy and paste! you're violating copyright laws.
http://blogs.discovermagazine.com/imageo/2013/12/23/pacific-ocean-crisscross-clouds-reveal-human-imprint/#.UsIbFtJdV5c
Posted 31-12-2013 10:19
It's new to me. Thank you for let us know about crisscross clouds. :)
Posted 31-12-2013 09:20
interesting report, thanks for sharing
Posted 31-12-2013 01:04
thanks for sharing
Posted 30-12-2013 23:49
thanks fr sharing
Posted 30-12-2013 23:23
great effort....
Posted 30-12-2013 23:20
Yes ,agree with you & no one talks about reducing carbon emission in that industry.
Posted 30-12-2013 20:22
thanks for the information.
Posted 30-12-2013 19:58
thanks for sharing
Posted 30-12-2013 19:50