Oceanography Archives - State of the Planet

Part of the Pacific Ocean Is Not Warming as Expected. Why?

Climate models predict that as a result of human-induced climate change, the surface of the Pacific Ocean should be warming. But one key part is not.

by |June 24, 2019

Drilling the Seabed Below Earth’s Most Powerful Ocean Current

Starting this month, scientists aim to study the Antarctic Circumpolar Current’s past dynamics by drilling into the seabed in some of the planet’s remotest marine regions.

by |May 15, 2019

As Oceans Warm, Microbes Could Pump More CO2 Back Into Air, Study Warns

A new study suggests bacteria may respire more carbon dioxide from the shallow oceans to the air as seas warm, reducing the deep oceans’ ability to store carbon.

by |April 29, 2019

You Asked: Why Do We Know More About the Moon Than Our Own Oceans?

An Earth Institute oceanographer answers this deep question from a reader as part of our Earth Month Q&A on Instagram.

by |April 19, 2019

Carbon Lurking in Deep Ocean Threw Ancient Climate Switch, Say Researchers

A million years ago, a longtime pattern of alternating glaciations and warm periods dramatically changed, when ice ages suddenly became longer and more intense. Scientists have long suspected that this was connected to the slowdown of a key Atlantic Ocean current system that today once again is slowing. A new study of sediments from the Atlantic bottom directly links this slowdown with a massive buildup of carbon dragged from the air into the abyss.

by |April 8, 2019

Drill Cores From Pre-Ancient Greece Open Insights to Climate

Newly analyzed drill cores taken from the bottom of Greece’s Gulf of Corinth show that sediment flow into the basin has varied dramatically over the past 500,000-plus years, as the earth passed in and out of ice ages, and humans later dominated the surrounding landscape.

by |March 1, 2019

Wallace Broecker, Prophet of Climate Change

Wallace Broecker, a geochemist who initiated key research into the history of earth’s climate and humans’ influence upon it, died Feb. 18 in New York. He was 87.

by |February 19, 2019
argo ship ocean freshening

North Atlantic Is Getting Less Salty, But It’s Too Soon to Blame Climate Change

Researchers report a sharp drop in salinity in the North Atlantic Ocean over the last decade, providing the most detailed look yet at the region’s changing ocean conditions. A continued decline could impact fish stocks and the ocean’s ability to absorb CO2.

by |March 13, 2018
hugh ducklow

Live from Antarctica: Scientists #TakeoverNSF

On January 31 at 1:00 p.m. EST, Lamont-Doherty’s Hugh Ducklow and his colleagues will use National Science Foundation social media to discuss their research on Antarctic ecology.

by |January 31, 2018
Gwenn Hennon demonstrates experiment aboard the RV Kilo Moana

Eavesdropping on the Ocean’s Mighty Microorganisms

Now, nearing the end of our three-week cruise of the North Pacific off Hawaii, we are working to understand how these tiny bacteria connect and communicate with one another.

by |July 13, 2017