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http://www.newscientist.com/blogs/sh...ndblaster.html

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The Sahara contributes about half of all of the dust dumped into the atmosphere every year. This image shows the dust trail blowing west over Africa and across the North Atlantic before heading north at the Cape Verde islands. Saharan dust regularly travels as far as South America, helping to fertilise the Amazon rainforest.

Earlier this week the University of Alabama in Huntsville announced a three-year project looking at how Saharan dust affects atmospheric temperature. The large dust particles can both absorb solar radiation, converting it to heat, and reflect radiation back into space, and thus having a cooling effect.

Beautiful
 

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Cool, I saw something like this on Nat GEO
 

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Quote:


The Sahara contributes about half of all of the dust dumped into the atmosphere every year. This image shows the dust trail blowing west over Africa and across the North Atlantic before heading north at the Cape Verde islands. Saharan dust regularly travels as far as South America, helping to fertilise the Amazon rainforest.

Earlier this week the University of Alabama in Huntsville announced a three-year project looking at how Saharan dust affects atmospheric temperature. The large dust particles can both absorb solar radiation, converting it to heat, and reflect radiation back into space, and thus having a cooling effect.

is that spelled right?
 

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Pretty cool (here in the UAE there is often a lot of sand in the atmosphere if there are big sand storms in neighbouring countries
)
 

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Oh sweet!! That picture is really amazing with the color contrast. And to know it is staged by Ma-Nature herself is always the cherry on top.
 

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Aerosols mainly contribute to cooling, brighter clouds and reflecting solar IR back to space. Climate change GEO2103
 
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