Devil in the Deep Blue Sea: How Many Dead Zones Are Out There?

A stretch of the Gulf of Mexico spanning more than 5,000 square miles along the Louisiana coast is nearly devoid of marine life this summer, according to a study released this week. Caused largely by nutrient runoff from farm fertilizer, this oxygen-deprived “dead zone” is approximately the size of Connecticut. Although slightly smaller than last summer’s edition, the Gulf dead zone is still touted by some as the largest in the U.S. and costs $82 million annually in diminished tourism and fishing yield. Which makes you wonder…

 

How many other dead zones are out there?

Source: ecowatch.com

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