National Geographic: New Orleans may be the victim of a one-two punch as Hurricane Isaac threatens to strengthen over the Gulf of Mexico and the ongoing affects of this summer's drought continue to trickle down to the Delta. The record temperatures and lack of rain that have devastated crops in America's heartland upstream also have weakened the once-mighty Mississippi River's defenses against saltwater intrusion. Freshwater flowing south from the Mississippi and salty water from the Gulf are constantly arm wrestling...
URL: http://news.nationalgeographic.com/news/2012/08/120824-mississippi-river-new-orleans-drought-hurricane-isaac-water-science-environment/
Enclosure: http://images.nationalgeographic.com/wpf/media-live/photos/000/586/overrides/mississippi-river-satellite-view-drought-july-2012_58644_600x450.jpg
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