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Oceans

A recent study lays a new foundation for a better understanding of deep-ocean maxima phytoplankton and their role in the global carbon cycle.
Posted inResearch Spotlights

First Worldwide View of a Key Phytoplankton Proxy

Sarah Stanley, Science Writer by Sarah Stanley 11 May 20214 October 2021

New insights into the dynamics of ocean features known as deep chlorophyll maxima set the stage for better understanding of their role in carbon cycling.

A humpback whale breaches in the Gulf of Alaska.
Posted inNews

Years After the Pacific Marine Heat Wave, Ecosystem Shifts Persist

Hannah Thomasy, Science Writer by Hannah Thomasy 3 May 202125 October 2021

Researchers question whether Gulf of Alaska species will return to pre–heat wave conditions.

A yellow DART buoy being lowered overboard
Posted inNews

Ocean Sensors Record Rare Triple Tsunami near New Zealand

Katherine Kornei, Science Writer by Katherine Kornei 29 April 202116 March 2022

A new suite of DART buoys in the South Pacific Ocean spotted waves set in motion by three tsunamigenic earthquakes that occurred within hours of one another.

Satellite image of the icy Sannikov Strait
Posted inNews

A Massive Methane Reservoir Is Lurking Beneath the Sea

by Fanni Daniella Szakal 27 April 202114 October 2021

Scientists have found a methane reservoir below the permafrost seabed of the Laptev Sea—a reservoir that could suddenly release large amounts of the potent greenhouse gas.

Loggerhead sea turtle swimming
Posted inNews

What Happens When Six Sea Turtles Go Rogue

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 26 April 202121 December 2023

In a study of more than 200 sea turtles, researchers were surprised by six turtles that went their own way.

Part of Jan Mayen, an unpopulated island northeast of Iceland, is seen here from the sea under a cloudy sky
Posted inScience Updates

Rethinking Oceanic Overturning in the Nordic Seas

by Léon Chafik, T. Rossby, Hjálmar Hátún and H. Søiland 8 April 202113 April 2026

Recent research offers new insights into exchanges of water between the North Atlantic and the Nordic Seas, which play critical roles in the climate-regulating Atlantic overturning circulation.

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.

Two figures comparing organic carbon fluxes in a natural river (top) versus an engineered river with artificial levees (bottom).
Posted inEditors' Highlights

How River Engineering Alters Carbon Cycling

by Susan Trumbore 23 March 202127 January 2022

Artificial levees in the Lower Mississippi River bypass floodplain processing and increase delivery of carbon to the ocean.

A model bulk water storage capacity map of the pyrolitic mantle up to 27 GPa
Posted inEditors' Highlights

Watering Down the Mantle

by V. Salters 9 March 20214 August 2023

The cooling of planet Earth over time increased the water carrying capacity of the mantle and could have shrunk the oceans.

A robotic arm retrieves an underwater hydrophone
Posted inScience Updates

Measuring Ambient Ocean Sound During the COVID-19 Pandemic

by P. L. Tyack, J. Miksis-Olds, J. Ausubel and E. R. Urban Jr. 4 March 20211 February 2023

An expanded nonmilitary hydrophone network provides new opportunities to understand the variability and trends of ocean sound and the effects of sound on marine organisms.

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Over a dark blue-green square appear the words Special Report: The State of the Science 1 Year On.

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