Search Results for: antarctica
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1,391 results
1,391 results for: antarctica
- Chemistry
Meteorites contain chemicals linked to life
Space rocks could have delivered DNA building blocks to Earth.
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- Earth
Earth/Environment
The carbon footprint of Brazilian beef, plus the health effects of pollution and electrification in this week's news.
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2011 Science News of the Year: Earth
NASA Warming slowdown The planet’s overall temperature has been climbing upward, but that trend stalled during the early 2000s — and now scientists think they can explain why. Several studies suggest that tiny sulfur-rich particles called aerosols, which shield the Earth from the sun’s incoming rays, are to blame. Some of those particles come from […]
- Animals
Animals on the Move
Worldwide — on land, in the sea and in rivers, streams and lakes — wildlife is responding to rising temperatures.
- Space
Astronomers probe matter in early universe
Smeared light from the dawn of time confirms ideas about a mysterious dark energy permeating the cosmos.
- Earth
‘Fossil’ mountains entombed by ice
Cold temperatures have kept a buried Antarctic range fresh for hundreds of millions of years.
- Chemistry
Melting icebergs fertilize ocean
Releasing extra iron into the water boosts carbon dioxide uptake by plankton.
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Freon: Destroying the ozone layer?
Scientists discovered in the 1970s that chlorofluorocarbons such as Freon were hurting Earth’s ozone layer.
- Humans
Marking penguins for study may do harm
Metal flipper bands used to tell birds apart hamper survival and reproduction, a 10-year study finds.
- Earth
Ozone hole on the mend
Researchers claim to see atmospheric healing more than a decade earlier than a detectable uptick was expected.
- Space
Laser proposed to deflect space junk
A ground-based device would use light to push debris off a collision course.
