A number of organizations are attempting to clean up the water, but solving the problem of ocean plastic pollution will also require big changes on land.

Biological oceanographer Hugh Ducklow describes decades of work in far-flung places to understand the evolving ecology of the oceans. The picture is not always clear.

In much of the world ocean, there is evidence that iron-rich dust blowing from land has fertilized algae during cold period, increasing uptake of carbon from the air, and keeping things frigid. Not here, says a new study.

Seaweed cultivation, altering the chemistry of seawater, or even injecting electrical currents should be studied, say the authors.

A sharp rise in temperatures on land is linked to unusual heating of the Atlantic Ocean, and changes in wind patterns that send that warmth westward.

Fast turnover of carbon between seawater and microbes is a fact, but how it works is largely a black hole. This projects aims to shed light.

In honor of World Oceans Day on June 8.

Large numbers of icebergs that drifted unusually far from Antarctica before melting into ocean waters have been key to initiating ice ages of the past, says a new study.

A new effort to analyze the ocean’s ability to take up CO2 will be important for predicting the effectiveness of climate change mitigation efforts.

A new study of the closest ancient analog to modern carbon emissions finds that massive volcanism was the main cause of high carbon at the time. But nature did not come close to matching what humans are doing today.