Plankton play many important roles on the planet. How will climate change affect them, and is it already happening?

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.

Researchers have zeroed in on what they call the Last Ice Area, where the last year-round Arctic ice, and associated ecosystems may–or may not–survive in a warmer future.

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.

Emissions from coal-fired power plants and possibly other sources in China are seeding the North Pacific Ocean with metals including iron, according to new a new study.

Interest in deep-sea mining for metals has grown substantially in the last decade. A new study argues that it poses significant risks not only to the immediate surroundings, but also to the water hundreds to thousands of feet above the seafloor.

Driven by changing climate, a uniquely resilient organism is taking over the Arabian Sea, disrupting food chains, fisheries, oil refineries and water desalination plants.

A new study reveals a surprising way in which lava influences marine ecology.

MPA in Environmental Science and Policy student Shirley Binder aims to incorporate environmental policy fundamentals into her marine biology background.