Earth
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Environment
Low levels of radiation from Fukushima persist in seafood
Aquatic species in Japan contain low levels of radioactive cesium, but some freshwater species risk high contamination.
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Oceans
Protected coral reefs may not be the ones that need protection
A new study finds that more than half of the world’s coral reefs site within a half-hour of a human settlement. But those that are protected tend to be far away.
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Oceans
3.5 billion years ago, oceans were cool, not hot
Extensive new evidence from South Africa suggests that 3.5 billion years ago, Earth was locked in a cold spell, with isolated blasts of hydrothermal heat that may have helped incubate life.
By Beth Geiger -
Environment
California gas leak spewed massive amounts of methane
New estimates suggest that a 2015 natural gas well blowout injected tons of greenhouse gases into the Los Angeles atmosphere.
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Earth
Readers respond to blue tarantulas, multiparticles and white outs
Readers respond to the January 9, 2016 issue of Science News with thoughts on blue tarantulas, multiparticles, and avalanches.
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Oceans
Great Barrier Reef acidification predictions get worse
New simulations suggest that ocean acidification poses an even greater threat to the Great Barrier Reef than suspected.
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Oceans
Corals need to take their vitamin C
Newly settled corals use vitamin C to help build their stony skeletons, researchers propose.
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Oceans
Gulf oil spill could hasten corrosion of shipwrecks
Oil from the Deepwater Horizon disaster could hasten the corrosion of historical shipwrecks in the Gulf of Mexico, new studies of marine microbes suggest.
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Climate
20th century sea level rose at fastest rate since founding of Rome
Sea levels rose more rapidly in the 1900s than during any other century in at least 2,800 years, with global warming causing at least half that rise.
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Earth
‘Eruption’ looks back at devastating Mount St. Helens blast
In Eruption, a science writer recounts the societal, economic and geologic forces that contributed to the Mount St. Helens disaster.
By Sid Perkins -
Agriculture
FDA to test foods for controversial herbicide
Amid controversy and conflicting studies, the FDA will test food for glyphosate, the most widely used herbicide in the world.
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Environment
Vaping linked to host of new health risks
Animal studies and analyses of gene activity point to broad range of potential new health risks from vaping affecting everything from sperm to heart and immunity to mental health.
By Janet Raloff