An estimated 2.69 billion tons of carbon are exported to the deep sea every year from the Southern Ocean.
biogeochemistry
Posted inResearch Spotlights
Seaweed Surges May Alter Arctic Fjord Carbon Dynamics
Climate change–accelerated seaweed growth could cause seaweed-dependent microbes to proliferate and consume more oxygen, leading to a rise in oxygen-starved zones.
Posted inNews
A Great Whale Conveyor Belt Transports Nutrients Across Oceans
Baleen whales shift huge amounts of nutrients, including nitrogen, from high-latitude feeding waters to tropical breeding areas.
Posted inFeatures
Could Bubbling Oxygen Revitalize Dying Coastal Seas?
Reoxygenation approaches have shown some success in lakes, but their potential risks must be examined carefully before they’re implemented as solutions to improve the health of coastal waters.
Posted inNews
Tea Leaves Remove Lead from Water
Surface and chemical properties of tea leaves may help explain the correlation between tea consumption and lower incidences of heart disease, high blood pressure, and stroke.
Posted inResearch Spotlights
Using Algorithms to Help Find Life on Icy Ocean Worlds
Scientists could use machine learning to analyze atmospheric samples in order to help identify microbes on frozen moons. They’re testing the concept using bottles of brine and smelly bacteria.
Posted inEditors' Highlights
Carbon-Nutrient Ratios Drive Nitrate Removal in Mediterranean Streams
The type of organic matter, and ratio of nutrients to carbon, impact the ability of heterotrophic bacteria to effectively remove certain forms of nitrogen pollution (nitrate) from streams.
Posted inEditors' Highlights
Coastal Dynamics Revealed by Satellite Salinity Data
One decade of high-quality satellite salinity observations provide valuable insights into the complex dynamics in the Mid-Atlantic Bight.
Posted inEditors' Highlights
Filling the Gaps: Context and Design of Arctic Carbon Flux Measurement Networks
Large scale observational networks are necessary for understanding the impact of a warming climate in the Arctic, but critical tools are crucial to how those networks are designed.
Posted inEditors' Highlights
How Southern Ocean Currents Modulate Global Biogeochemical Cycles
Swirling currents called mesoscale eddies occupy about 22% of the ice-free Southern Ocean. Using data from drifting floats and satellites, scientists report the impact these eddies have on biogeochemical cycles.