NOVA reports on the staggering water problems of Southern Louisiana - where the mighty Mississippi is threatening to change its course, and where last year 49 square miles of coastline disappeared into the Gulf of Mexico.
Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.