Researchers used a sediment core from a lake in California’s San Bernardino Mountains to track the effect of climate on vegetation, fire, and erosion between about 120,000 and 15,000 years ago.
Paleoceanography and Paleoclimatology
Posted inResearch Spotlights
How to Read Atmospheric History Written in Flowstones
Oxygen isotope ratios in cave deposits reflect past climates, but interpreting these data is not straightforward. A new study explores what these ratios really tell us.
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Reconstructing 150 Million Years of Arctic Ocean Climate
A new summary of past Arctic climate conditions gives insight into anthropogenic influences on today’s climate and on the need for future drilling studies to further improve our understanding of the past.
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Oceans Vented Carbon Dioxide During the Last Deglaciation
A new boron isotope record from South Pacific marine sediments offers a more complete picture of ocean-atmosphere carbon dioxide exchange during the late Pleistocene.
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Standardizing the Surge of Paleoclimate Data
Researchers unveil a community-wide effort to standardize terminology and reporting requirements across paleoclimate data.
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Atlantic Circulation Consistently Tied to Carbon Dioxide
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.
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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.
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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.
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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.