A new study uses Argo floats and an ocean circulation model to track the sources supplying pulses of oxygen to the deep North Pacific.
Global Biogeochemical Cycles
Pacific Carbon Uptake Accelerating Faster Than Expected
A new study suggests that shifting ocean currents drive faster carbon dioxide uptake.
Big Data Help Paint a New Picture of Trace Element Cycling
A new framework for understanding the suite of processes acting on marine particulate trace metals exemplifies how alternative analyses can maximize the information that large data sets provide.
A Look at How Long-Banned PCBs Persist in the Ocean
A new study tracks how climatic factors like sea ice cover and ocean circulation affect the life span and distribution of polychlorinated biphenyls in the world’s oceans.
Rising Methane Emissions Could Derail the Paris Agreement
A new study looks for the source of a spike in the potent greenhouse gas methane.
Oceanic “Pump” Sends Small Carbon Particles to Twilight Zone
Underwater gliders provide unprecedented, daily data that reveal new insights into how carbon gets from the atmosphere to the deep ocean.
A Novel Approach Reveals Element Cycles in the Ocean
Dissolved thorium isotopes light the way to a more thorough understanding of how different elements enter marine environments—and how long they stay there.
Radionuclide Data from GEOTRACES Improve Particle Flux Estimates
New measurements of multiple radionuclides in the Atlantic Ocean offer a robust constraint on the sinking flux of particles and associated vertical fluxes of biogeochemically important elements.
Tool to Capture Marine Biological Activity Gets Coastal Upgrade
Upwelling hinders an efficient method to estimate a key measure of biological productivity in coastal waters, but accounting for surface temperatures could boost accuracy.
The Tiny Organisms That Transport Silica Across Earth’s Oceans
Phaeodarians play a major role in marine nutrient cycle.