Past ocean surface conditions suggest that over the past 800,000 years, atmospheric carbon dioxide levels typically rose on millennial timescales when Atlantic overturning was weaker and vice versa.
Paleoceanography and Paleoclimatology
Posted inResearch Spotlights
A New Proxy for Past Precipitation
Researchers used luminescence signals from marine sediment cores to bolster estimates of precipitation levels on land over the past 30,000 years.
Posted inResearch Spotlights
New Perspectives on 2,000 Years of North Atlantic Climate Change
A review of recent research advancements takes a deep dive into North Atlantic ocean circulation and its potential role in historical climate shifts.
Posted inResearch Spotlights
Translating Climate Models to the Language of Paleoclimate Data
A new model will help climate models better interpret paleoclimate reconstructions derived from lake sediment and could improve predictions of future climatic conditions.
Posted inResearch Spotlights
Southern Hemisphere Sediments Show Surprising Pliocene Cyclicity
New, high-resolution paleoclimate reconstructions with 100,000-year rhythms may offer insights into how Earth’s climate system operated during a time when the planet was warmer than it is today.
Posted inEditors' Vox
A Tribute to Wally Broecker
An editor of Paleoceanography and Paleoclimatology shares fond memories of his postdoc with Wally Broecker, who died in February.
Posted inResearch Spotlights
Late Cretaceous Extreme Warmth at High Southern Latitudes
New proxy data indicate sea surface temperatures at high southern latitudes reached over 35°C during a period of extreme greenhouse climate that began about 100 million years ago.
Posted inResearch Spotlights
A 192,000-Year Record of Northwest African Fire History
Biomarker analyses from an offshore sediment core suggest that increased fire occurrence around 55,000 years ago coincided with increased fuel loads and human settlement in this region.
Posted inEditors' Highlights
Baltic Bacterial Blooms Over the Millennia
Eutrophication not only is a present-day anthropogenic phenomenon in the southern Baltic but also occurred over the past few millennia, with cyanobacterial blooms during times of climate warming.
Posted inEditors' Highlights
What American Samoan Corals Tell About El Niño’s History
Samoan corals record how patterns of warm/cool and more/less salty in the equatorial Pacific changed in space and time over the last 500 years.