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beaches, coasts, & shorelines

Several Velella velella on the beach
Posted inNews

Why Trillions of Jellyfish Washed Ashore from Canada to California

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 31 March 20216 December 2021

Although warming oceans may make population booms and mass strandings more common, the species may ultimately be one of the beneficiaries of climate change.

Posted inEditors' Vox

Coastal Ecosystems Under Pressure Worldwide

by T. Malone, A. Malej and J. Faganeli 19 March 202127 October 2022

A new book explores how two river-dominated coastal estuaries are responding to the pressures of human expansion and climate change.

Imagen mostrando bolsas y otros restos de plástico flotando en el océano.
Posted inResearch Spotlights

Rastreando cómo se mueve el plástico en el océano costero

Kate Wheeling, freelance science writer by Kate Wheeling 3 March 202124 February 2023

Investigadores utilizaron un tanque de olas para estudiar el movimiento de partículas de plástico de forma experimental y comprender el papel de la densidad de partículas en el comportamiento de deriva.

Dead pine tree trunks stand amid tall grass.
Posted inResearch Spotlights

Coastal Flooding Enhances Methane Buildup in Forests

Aaron Sidder, freelance science writer by Aaron Sidder 25 February 20212 November 2021

Increased seawater exposure from flooding and storms is altering how coastal forests cycle methane, leading to more greenhouse gas accumulation in tree stems and soil.

A close-range view of coastal cliffs with adjacent beach. A sign warns visitors of rocks falling from above.
Posted inNews

Weighing Inputs of Waves and Precipitation to Coastal Erosion

by Jady Carmichael 19 February 202115 November 2021

Conducting weekly lidar surveys of coastal cliffs for 3 years enabled a California team of coastal erosion researchers to quantify and separate marine effects from subaerial effects.

Posted inEditors' Highlights

Going Down: How Do Cities Carry That Weight?

by Peter Zeitler 14 January 202114 January 2022

Calculations show that the added weight of growing cities can lead to tens of millimeters of subsidence, an effect that needs to be considered for coastal cities under threat by sea-level rise.

Drone photograph of research vessel offshore Malta collecting geophysical data to map offshore freshened groundwater systems
Posted inEditors' Vox

Freshened Groundwater in the Sub-seafloor

by A. Micallef, M. Person, C. Berndt, Claudia Bertoni, A. Haroon, R. Martin-Nagle, T. Müller and E. Trembath-Reichert 11 January 202130 March 2023

Scientists are using a variety of geochemical, geophysical, and numerical methods to study offshore freshened groundwater and better understand its role in the global water cycle.

A satellite image of the entire arm of Cape Cod
Posted inFeatures

Cape Cod: Shipwrecks, Dune Shacks, and Shifting Sands

Mary Caperton Morton, Science Writer by Mary Caperton Morton 8 January 20213 November 2021

Living in Geologic Time: How long will the cape keep its fist raised against the waves?

Plastic debris floats near the ocean surface, as seen from underwater
Posted inResearch Spotlights

Tracking How Plastic Moves in the Coastal Ocean

Kate Wheeling, freelance science writer by Kate Wheeling 21 December 20203 November 2021

Researchers used a wave tank to study the movement of plastic particles experimentally and to understand the role of particle density in drift behavior.

A researcher climbs through dead mangrove trees on the island of Vieques in November 2019.
Posted inNews

Hurricane Maria Killed Mangroves Months After Storm

by T. Joosse 15 December 202010 February 2022

An overgrown channel between a lagoon and the ocean on the Puerto Rican island of Vieques created a backup of freshwater, disrupting the delicate balance of salinity in coastal mangrove forests.

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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Understanding Flux, from the Wettest Ecosystems to the Driest

24 November 202524 November 2025
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Heatwaves Increase Home Births in India

2 December 20251 December 2025
Editors' Vox

Echoes From the Past: How Land Reclamation Slowly Modifies Coastal Environments

19 November 202519 November 2025
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