Earth
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Animals
Migratory fish species are in drastic decline, a new UN report details
The most comprehensive tally of how migrating animals are faring looks at more than 1,000 land and aquatic species and aims to find ways to protect them.
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Animals
Here’s how many shark bites there were in 2023
The chance of being bitten by a shark is still incredibly slim, according to a new report from the Florida Museum of Natural History.
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Earth
Where are U.S. earthquakes most likely? A new map shows the hazard risks
Updates to the National Seismic Hazard Model have elevated the average ground shaking hazard across the country.
By Nikk Ogasa -
Climate
Cold, dry snaps accompanied three plagues that struck the Roman Empire
New climate data for ancient Italy point to temperature and rainfall influences on past infectious disease outbreaks.
By Bruce Bower -
Earth
Many but not all of the world’s aquifers are losing water
Many aquifers are quickly disappearing due to climate change and overuse, but some are rising because of improved resource management.
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Climate
Numbats are built to hold heat, making climate change extra risky for the marsupials
New thermal imaging shows how fast numbats’ surface temperature rises even at relatively reasonable temperatures.
By Jake Buehler -
Earth
STEVE and other aurora-like glows perplex scientists with their complex physics
New views of STEVE from citizen scientists keep raising questions about the atmospheric light show — but computer models may offer some answers.
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Earth
Speed bumps under Thwaites Glacier could help slow its flow to the sea
A seismic survey of Thwaites’ icy underbelly shows the Antarctica glacier may be snagging on tall rises in land. That could help slow global sea level rise.
By Nikk Ogasa -
Physics
Invisible comet tails of mucus slow sinking flakes of ‘marine snow’
New measurements reveal the gunk that surrounds the particles, an important factor in understanding how the ocean sequesters carbon.
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Climate
3 Antarctic glaciers show rapidly accelerated ice loss from ocean warming
Destabilized by ocean waves and vanishing sea ice, Antarctica’s Hektoria glacier lost 25 kilometers of ice in 16 months — a possible hint of what’s to come.
By Douglas Fox -
Climate
COP28 nations agreed to ‘transition’ from fossil fuels. That’s too slow, experts say
COP28 ended with a historic climate agreement to begin moving away from fossil fuels, but stopped short of mandating phasing them out.
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Earth
Here are some big-if-true scientific claims that made headlines in 2023
Hominid cannibalism, “dark stars,” the secrets of Earth’s core and more tantalizing findings will require more evidence before scientists can confirm them as fact.