nutrient runoff

Gulf of Mexico ‘dead zone’ is larger than average

As predicted, the low-oxygen “dead zone” in the Gulf of Mexico is larger than average this year, said the National Oceanic and Atmospheric Administration on Thursday. At 6,705 square miles — or roughly the size of New Jersey — this year’s dead zone is more than three times the size of the target set for 2035.

Time running out for Chesapeake Bay cleanup

At their current pace, the three major states in the Chesapeake Bay watershed, responsible for 90 percent of pollution in the bay, will miss their targets for reducing sediment and nutrient runoff by 2025, said the Chesapeake Bay Foundation on Wednesday. Maryland and Virginia need to step up efforts to address agricultural pollution, and "Pennsylvania remains far off track," the foundation said.

Churned by hurricane, ‘dead zone’ is one-third expected size

The fish-killing "dead zone" in the Gulf of Mexico this summer is the third-smallest in 34 years of surveys, reported scientists. At 2,116 square miles, the hypoxic region is about one-third the size of the forecast of 6,700 square miles.

‘Dead zone’ in Gulf is eighth-largest on record

The fish-killing “dead zone” in the Gulf of Mexico this summer covers 6,952 square miles, midway in size between Connecticut and New Jersey, said researchers on Thursday. It is the eighth-largest dead zone in 33 years of keeping records.

Rising seas pushing saltwater into historic farms on Chesapeake Bay

As sea levels rise and the land subsides, America's first colonial farms—350-year-old tracts along Maryland's eastern shore—are being inundated with saltwater, threatening the corn and soybean crops while salt-tolerant plants grow six feet tall, reports FERN's latest story, published with The Atlantic.

Heavy rainfall causes surge of nutrient runoff that fuels algal blooms

When heavy rainfall sweeps the countryside, waterways are flooded with peak levels of the nutrient phosphorus, which can trigger algal blooms and create dead zones in rivers, lakes, and coastal waters, says a newly published study.

‘Dead zone’ is largest ever recorded, covers one-seventh of Gulf of Mexico

Marine scientists estimate the low-oxygen "dead zone" in the Gulf of Mexico covers a record 8,776 square miles, or one-seventh of the basin. "This large dead zone size shows that nutrient pollution, primarily from agriculture and developed land runoff in the Mississippi River watershed, is continuing to affect the nation’s coastal resources and habitats in the Gulf," said NOAA.