Atmospheric modeling of the particles’ journey suggests that millions of North Americans were exposed to arsenic levels 12 to 60 times higher than modern levels between 1898 and 1918.
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Deep-Diving Rocks Reveal a Subduction Zone’s Thermal Secrets
Rocks exhumed from a subduction zone in Papua New Guinea suggest that temperature changes with depth in ways not previously predicted, calling into question current models of subduction.
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Temperature Swings Are Melting the Ice in Lava Beds National Monument’s Caves
Ice caves in Lava Beds National Monument, their climates traditionally defined by narrow temperature ranges, are becoming more like regular caves.
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Elephants Engineer Their Ecosystems in Life—and in Death
Elephant carcasses leave a lasting legacy on the savanna, reshaping microbial communities and plant life.
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U.S. River Sediment Transport Is Becoming “Burstier”
The time frame in which U.S. rivers move most of their sediment has compressed significantly, which could have implications for water treatment, aquatic habitats, erosion, and harmful algal blooms.
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Archaea Survived Enceladus-Like Conditions in Lab
Enceladus’s ocean is extremely alkaline and low on carbon dioxide, but one terrestrial extremophile made it work.
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Eaton Wildfire Exposed Millions to a “Cocktail of Chemicals”
Compared to a nearby wildfire that primarily burned vegetation, the smoke plume from the urban Eaton Fire contained 3 times as much arsenic and 50 times as much lead.
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Twin Spacecraft Ready to Head for a Martian Escapade
A pair of probes have taken a circuitous path to Mars but are now ready to leave their “loiter” orbit for a 10-month cruise to the Red Planet.
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Antarctica’s Only Flowering Plants Take Opposite Paths Under Experimental Warming
A 7-year field experiment showed Antarctica’s native grass and pearlwort reworking their internal plumbing in contrasting ways as temperatures shifted.
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In Northeastern North America, Alpine Zones Are Turning Green
Using satellite data, scientists have detected where once-stable alpine ecosystems are transforming into greener, shrubbier places.