There are more and more videos, comments, and blogs reporting on oil being rained down from the skies in Louisiana. It makes sense that oil could evaporate and end up precipitating, especially after it's been emulsified. Or, is this just a hoax, run-off, or worse... real! Take a look for yourself. I'd love to know more and discuss the possibilities of "oil precipitation" in the classroom. It wouldn't be a difficult lab.
If it is run-off and you would like to know more about preventing contamination of our waterways and drinking water, follow this link to an article on the subject by Scientific American.