Earth
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Climate
Arctic sea ice hits record wintertime low
Warm temperatures and heat waves reduced sea ice extent in the Arctic to its smallest maximum extent ever seen.
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Physics
To understand rivers, let physics be your guide
Where the River Flows unites physics and environmental science to explain Earth’s waterways.
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Earth
Remnants of Earth’s original crust preserve time before plate tectonics
Canadian rocks containing bits from 4.2 billion years ago suggest that full-fledged plate tectonics had a late start.
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Climate
Changing climate could worsen foods’ nutrition
Climate change could aggravate hidden hunger by sapping micronutrients from soils and plants, reducing nutrition in wheat, rice and other crops.
By Susan Milius -
Genetics
How to grow toxin-free corn
Corn genetically altered to produce specialized molecules may prevent a fungus from tainting it with carcinogenic toxins.
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Earth
Warming soils may belch much more carbon
New measurements suggest soils below 15 centimeters deep could play a sizable role in boosting carbon emissions as the planet warms.
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Agriculture
Fleets of drones could pollinate future crops
Chemist Eijiro Miyako turned a lab failure into a way to rethink artificial pollination.
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Ecosystems
Invasive species, climate change threaten Great Lakes
In The Death and Life of the Great Lakes, a journalist chronicles the lakes’ downward spiral and slow revival.
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Earth
Earth’s mantle may be hotter than thought
Earth’s mantle is warmer than previously thought, suggests a new experiment that better accounts for water content in rocks.
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Planetary Science
Saturn’s ‘Death Star’ moon may not conceal an ocean after all
A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.
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Planetary Science
Saturn’s ‘Death Star’ moon may not conceal ocean after all
A lack of cracks on Mimas suggests that the icy moon of Saturn doesn’t conceal a subsurface ocean of liquid water.
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Environment
Most fish turned into fishmeal are species that we could be eating
Millions of tons of food-grade fish are turned into fishmeal for aquaculture and agriculture.