A cadre of iron-rich extraterrestrial particles picked up faint whiffs of our planet’s atmosphere when they fell to Earth millions of years ago.
proxies
Posted inNews
Arctic Ice Shelf Theory Challenged by Ancient Algae
Chemical signatures of marine organisms reveal that seasonal sea ice, not a massive ice shelf, persisted in the southern Arctic Ocean for 750,000 years.
Posted inNews
Coral Cores Pinpoint Onset of Industrial Deforestation
Trace elements in coral reefs provide a timeline of how Borneo’s rainforests have been altered by industry.
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Whaling Records Can Help Improve Estimates of Sea Ice Extent
The locations of humpback whale catches in the early 20th century indicate that most climate models overestimate the historic extent of sea ice in the Southern Ocean.
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Cave Deposit Links Greenland’s and Europe’s Climate Records with a German Volcano
Dating a late Pleistocene eruption has big implications for understanding the Younger Dryas—and current climate change.
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Arctic Hydrothermal Vents May Resemble Those on Enceladus
By studying hydrogen-rich vent sites on Earth, scientists could learn more about the hidden ocean of Saturn’s icy moon—one of our solar system’s likeliest candidates for harboring life beyond Earth.
Posted inResearch Spotlights
Bat Poop Records Fire History
Charcoal stored in preserved guano gives researchers a new way to reconstruct regional fire histories.
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Mega El Niño May Have Led to Major Mass Extinction 252 Million Years Ago
The extreme climate conditions wrought by a decades-long ENSO pattern could be the culprit in the Great Dying, which wiped out nearly 90% of life on Earth.
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Underwater Bridge Suggests a Surprising Date for First Migration to Mallorca
A controversial study suggests that humans settled on the Spanish island 1,000 years earlier than archaeologists believe.
