This shows my nerdy meteorologist side, but this is definitely worth the 95 seconds to watch:
http://www.nasa.gov/multimedia/videogallery/index.html?media_id=155644781#The red is dust, blue is sea salt, sulphate is white, and black and organic carbon is green. Note the dust from the Sahara being blown into the Atlantic, the blue sea salt forming tiny concentrated dots in the center of tropical cyclones, and that big puff of white at the 1 minute mark is a volcano. Cool, isn't it!
And for more pictures and information, check this out:
http://svs.gsfc.nasa.gov/vis/a010000/a010900/a010977/index.html
