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beaches, coasts, & shorelines

Tall, green marsh grasses at sunrise
Posted inNews

Machine Learning Model Flags Early, Invisible Signs of Marsh Decline

by Skyler Ware 17 July 202517 July 2025

Decreases in underground plant biomass could signal future marsh loss and prompt conservation measures.

Blue-and-white plastic bag on a beach
Posted inNews

Policy Success: Fees and Bans on Plastic Bags Reduce Beach Trash

by Rebecca Owen 14 July 202514 July 2025

Regardless of the patchwork of regulations aimed at limiting plastic bag use in the United States, new research indicates that such legislation does, indeed, limit the number of plastic bags found on beaches.

A green riverbank and a building are visible behind a river.
Posted inResearch Spotlights

Tracing Black Carbon’s Journey to the Ocean

Aaron Sidder, freelance science writer by Aaron Sidder 11 July 202524 July 2025

Scientists surveyed a trio of estuaries in pursuit of a missing source of oceanic dissolved black carbon.

A bird’s-eye view of the Mississippi River delta. The main river runs left to right across the photo and wispy clouds are visible in the foreground.
Posted inNews

Tracking the Sediment Carried by the Muddy Mississippi

by Delaney Dryfoos 10 June 20259 June 2025

New research shows that typically, less than 10% of land-building alluvium reaches the Bird’s Foot Delta region, the southernmost reach of the river, where it meets the Gulf.

A metal tool consisting of many cylinders is being suspended over the side of a ship above gray ocean waters. An iceberg is in the background.
Posted inResearch Spotlights

How Greenland’s Glacial Troughs Influence Ocean Circulation

Aaron Sidder, freelance science writer by Aaron Sidder 29 May 202529 May 2025

Glacial troughs in Antarctica promote mixing of warm and cold water, affecting global climate. A new study explores whether the same is true in troughs along Greenland’s coastline.

Chesapeake Bay, with its tree-lined waterfronts curving along the river toward the ocean, is pictured from above.
Posted inResearch Spotlights

River Alkalinization and Ocean Acidification Face Off in Coastal Waters

by Madeline Reinsel 21 May 202521 May 2025

Factors ranging from rainfall to nutrient runoff to changing mining and agricultural practices drove decades-long pH trends in the Chesapeake Bay.

2015年6月洪水期间,汽车在新西兰达尼丁南部的街道上前行。图片来源:John Cosgrove
Posted inResearch Spotlights

地下洪水:海平面上升的隐形风险

Sarah Stanley, Science Writer by Sarah Stanley 20 May 202520 May 2025

研究人员展示了一种方法来评估海平面上升如何提高地下水位,从而可能将洪水灾害传播到遥远的内陆地区。

In the foreground is a beach covered in brownish seaweed, farther back is a body of water coated in chunks of floating ice, and in the distance are mountains and the sky.
Posted inResearch Spotlights

Seaweed Surges May Alter Arctic Fjord Carbon Dynamics

Sarah Stanley, Science Writer by Sarah Stanley 16 May 202516 May 2025

Climate change–accelerated seaweed growth could cause seaweed-dependent microbes to proliferate and consume more oxygen, leading to a rise in oxygen-starved zones.

Fine-grained sand on the ocean floor, marked by the rippling movement of currents
Posted inResearch Spotlights

Mapping the Ocean Floor with Ancient Tides

Aaron Sidder, freelance science writer by Aaron Sidder 6 May 20256 May 2025

A new study uses a paleotidal model to trace the formation of carbon-rich mud deposits over thousands of years.

A dirt road curves into the distance. On either side are trees and brush.
Posted inResearch Spotlights

Flood Prediction Could Boost Road Resilience off Georgia’s Coast

Sarah Derouin, Science Writer by Sarah Derouin 2 May 20252 May 2025

Researchers and community members worked together to develop recommendations for how Little Cumberland Island can mitigate flooding hazards.

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