Earth
We summarize the week's scientific breakthroughs every Thursday.
- Earth
New mapping shows just how much fishing impacts the world’s seas
Industrial fishing now occurs across 55 percent of the world’s ocean area while only 34 percent of Earth’s land area is used for agriculture or grazing.
- Plants
The flowers that give us chocolate are ridiculously hard to pollinate
Cacao trees are really fussy about pollination.
- Animals
Strong winds send migrating seal pups on lengthier trips
Prevailing winds can send northern fur seal pups on an epic journey.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- Agriculture
Grapevines are more drought-tolerant than thought
Grapevines handle drought better than previously thought. This could inform irrigation management.
- 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.
- 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.
