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.
Andrew Chapman
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Precipitation Extremes Drive Swings in Lake Tahoe’s UV Exposure
An 18-year study reveals dramatic year-to-year variations in ultraviolet radiation penetration tied to Sierra Nevada precipitation cycles.
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Fallowed Fields Are Fueling California’s Dust Problem
New research shows that unplanted agricultural lands are behind most of the state’s anthropogenic dust events.
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Newly Discovered Algae May Speed Melting of Antarctic Ice
Purple pigmentation in a diverse array of algae absorbs heat and creates a feedback loop responsible for 2% of total daily melting.
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An Atmospheric River Exacerbated Türkiye’s 2023 Earthquake Crisis
A new study reveals how an atmospheric river led to more devastation after two earthquakes hit Türkiye and Syria, highlighting the need for better risk assessment models.
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Few Minerals Are Named for Women
New research shows that that less than 3% of all minerals are named after women, and progress has stalled since 1985.
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Scientists Are “Gobsmacked” by the Variability of Seafloor Currents
The speed and direction of deep currents off Mozambique’s coast are more subject to change than scientists expected.
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The Tonga Eruption Left Deep-Sea Life Buried in Ash
When Hunga erupted in 2022, ash “decimated” slow-moving species living on the seafloor. More mobile species were able to hoof it out of harm’s way.
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California Mountains Face Weather Whiplash
Last month’s massive snowstorm in the Sierra Nevada followed a dry start to winter. Such extremes in precipitation may become the norm.
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Mysterious Seafloor Pits May Be Made on Porpoise
Some shallow seafloor depressions off the coast of Germany that look like those associated with methane might instead be the work of porpoises.