Carbon isotope data suggest an alternative source of nutrients to the Eastern Equatorial Pacific during glacial periods.
Paleoceanography
Posted inResearch Spotlights
Resolving a Mystery of the Ages
High-precision radiometric dates shed new light on the puzzling 600,000-year disparity in the timing of one of Earth’s most pivotal timescale boundaries.
Posted inResearch Spotlights
Microfossils Illuminate Ancient Ocean Currents
Researchers use dissolved silicon concentrations to map out how currents may have changed millennia ago in the Pacific.
Posted inResearch Spotlights
Improving Our Understanding of El Niño in a Warm Climate
A new study seeks to bring together the strongest features of proxy data and climate models to reduce uncertainties in reconstructions of past El Niño behavior.
Posted inResearch Spotlights
Sediment Cores Reveal Ocean Current’s Past Life
East Asia’s Black Current may have rerouted in the past 10,000 years or so.
Posted inResearch Spotlights
Iceberg Surge During Last Deglaciation May Have Had Two Pulses
Seafloor sediment cores provide new clues that could help clarify the influence of ice sheet collapse on a period of ocean cooling marked by slowed deepwater circulation.
Posted inResearch Spotlights
Earth's Carbon-Climate Feedbacks Varied in Past Warming Episodes
Records from drill holes in the eastern equatorial Pacific indicate that Earth's orbital eccentricity played an important role in controlling climate as the planet warmed.
Posted inResearch Spotlights
Ancient Ocean Floor Seashells Improve Model of Past Glaciers
More accurate reconstruction of ice sheets over the past 150,000 years could help scientists predict future climate change.
Posted inResearch Spotlights
Corals Reveal Ancient Ocean Temperatures in Great Barrier Reef
Old coral colonies suggest that a prehistoric warming event called the mid-Holocene Thermal Maximum may have occurred earlier than previously thought.
Posted inResearch Spotlights
Simulating the Climate 145 Million Years Ago
A new model shows that the Intertropical Convergence Zone wasn't always a single band around the equator, which had drastic effects on climate.