Earth
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Plants
The flowers that give us chocolate are ridiculously hard to pollinate
Cacao trees are really fussy about pollination.
By Susan Milius -
Animals
Strong winds send migrating seal pups on lengthier trips
Prevailing winds can send northern fur seal pups on an epic journey.
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Chemistry
Household products make surprisingly large contributions to air pollution
A study of smog in the Los Angeles valley finds that paints, fragrances and other everyday items are a growing component of the problem.
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Climate
Look to penguins to track Antarctic changes
Scientists say carbon and nitrogen isotopes found in penguin tissues can indicate shifts in the Antarctic environment.
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Life
Shipping noise can disturb porpoises and disrupt their mealtime
Noise from ships may disturb harbor porpoises enough to keep them from getting the food they need.
By Dan Garisto -
Plants
Ancient ozone holes may have sterilized forests 252 million years ago
Swaths of barren forest may have led to Earth’s greatest mass extinction.
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Ecosystems
Humans are overloading the world’s freshwater bodies with phosphorus
Human activities are driving phosphorus levels in the world’s lakes and other freshwater bodies to a critical point.
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Animals
A peek into polar bears’ lives reveals revved-up metabolisms
Polar bears have higher metabolisms than scientists thought. In a world with declining Arctic sea ice, that could spell trouble.
By Susan Milius -
Agriculture
Grapevines are more drought-tolerant than thought
Grapevines handle drought better than previously thought. This could inform irrigation management.
By Dan Garisto -
Earth
Gassy farm soils are a shockingly large source of these air pollutants
California’s farm soils produce a surprisingly large amount of smog-causing air pollutants.
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Earth
Life may have been possible in Earth’s earliest, most hellish eon
Heat from asteroid bombardment during Earth’s earliest eon wasn’t too intense for life to exist on the planet, a new study suggests.
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Environment
Plastic pollution increases risk of devastating disease in corals
Researchers estimate about 11 billion pieces of plastic are polluting Asia-Pacific corals, raising the risk of disease at scores of reefs.
By Dan Garisto