An irreversible shift in the chemical makeup of the Arctic Ocean driven by climate change is disrupting the region's food chain, a study suggests. Widespread loss of Arctic sea ice has led to a sharp ...

The deep, blue sea is becoming deeper — in color, that is. Climate change, along with human development, has reduced how much light can filter through the water. Reduced light can significantly ...

Drilling for minerals deep in the ocean could have immense consequences for the tiny animals at the core of the vast marine food web — and ultimately affect fisheries and the food we find on our ...

Researchers from Denmark, New Zealand, Australia, Spain and the U.S. have reconstructed the composition of phytoplankton communities around Antarctica over nearly three decades, the most comprehensive ...

Melting Arctic ice is revealing a hidden world of nitrogen-fixing bacteria beneath the surface. These microbes, not the usual cyanobacteria, enrich the ocean with nitrogen, fueling algae growth that ...

A small colored fish pokes out its head from a coral. An Acanthemblemaria Blenny pokes out its head from a coral in the waters of Panama. Credit: Tim Treuer Food chains in the coral reefs of the ...

Ocean waters are getting greener at the poles and bluer toward the equator, according to an analysis of satellite data published in Science on June 19. The change reflects shifting concentrations of a ...