An analysis of breaks in deep-sea sediment links the geological record to a 2.4-million-year cycle that heats Earth and ventilates our oceans.
paleoclimatology & paleoceanography
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Passing Stars Shorten Earth’s Time Horizon
Stars in the solar neighborhood could jostle planetary orbits, making it harder to turn back the clock and examine Earth’s orbital or climate history.
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Giant Impacts Might Have Triggered Snowball Earth Events
Running into the right space rock at the right time may have been enough to tip Earth into a runaway cold spell.
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Roman Plagues Struck During Cool, Dry Periods
Marine sediments from the Gulf of Taranto offer a high-resolution look at climate during ancient disease outbreaks.
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Oceans May Have Already Seen 1.7°C of Warming
The global warming clock started ticking decades earlier than current estimates assume, according to Caribbean sponges.
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The Importance of Archiving the Seafloor
Marine geological sample repositories are vital for ocean science, climate change studies, and more. The value of their collections is growing amid efforts to meet rising demand for their services.
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Looking for Climate Clues in China’s Great Wall
Looking for Climate Clues in China’s Great Wall
In northwestern China, desert conditions have preserved the farthest reaches of the Great Wall. Scientists are now exploring 2,000-year-old building materials for signs of the region’s past climate.
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Ostrich Eggshells Trace Namaqualand’s Ancient Rain
The plant-based nitrogen eaten by ostriches and stored in their eggshells was measured by researchers 20,000 years later.
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There is No JOIDES in Mudville
After almost 4 decades of research, the JOIDES Resolution will retire in 2024, leaving the ocean floor in peace (for now).
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Water Corridors Helped Homo sapiens Disperse out of Africa
Wetland conditions during the last interglacial period in parts of the Levant helped propel our ancestors into Arabia, new research suggests.