Dead Zone Connecticut-sized dead zone low-oxygen dead zones low-oxygen dead zones Connecticut-sized dead zone 6,474 square miles 6,500 square-mile dead zone Connecticut-sized dead zone Gulf of Mexico National Oceanic and Atmospheric Administration 2015 Gulf of Mexico dead zone ‘above average’. Connecticut-sized dead zone dead zones modern agriculture has problems one of the largest ever recorded “dead zone”-causing pollution Connecticut-sized dead zone dead zone 6,474 square miles Gulf of Mexico’s dead zone growing 2015 Gulf of Mexico dead zone ‘above average’ National Oceanic and Atmospheric Administration "2015 Gulf of Mexico dead zone â€˜above averageâ€™ ." Gulf of Mexico dead-zone this year was the 2nd largest measured area an area the size of Connecticut and Rhode Island combined low-oxygen dead zones 6,500 square mile “dead zone” National Oceanic and Atmospheric Administration (NOAA) dead zone in the Gulf of Mexico 16,800 square-kilometre dead zone Connecticut-sized dead zone modern agriculture has problems 6,474 square miles Connecticut-sized dead zone this year was the 2nd largest measured area National Oceanic and Atmospheric Administration Connecticut-sized dead zone Connecticut-sized dead zone Gulf of Mexico National Oceanic and Atmospheric Administration 6,474 square miles Rhode Island and Connecticut combined last summer Connecticut-sized dead zone National Oceanic and Atmospheric Administration Connecticut-sized dead zone 2015 Gulf of Mexico dead zone ‘above average’. low-oxygen dead zones “dead zone,” dead zone in the Gulf of Mexico this year was the 2nd largest measured area the much-discussed dead zone in the Gulf of Mexico low-oxygen dead zones Connecticut-sized dead zone this year was the 2nd largest measured area Connecticut-sized dead zone set a target Rhode Island and Connecticut combined last summer the much-discussed dead zone in the Gulf of Mexico Connecticut-sized dead zone low-oxygen dead zones low-oxygen dead zones Connecticut-sized dead zone 6,474 square miles