Search Results for: antarctica
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1,394 results
1,394 results for: antarctica
- Earth
Glaciers give major boost to sea level
The ongoing disappearance of glaciers and other small ice masses worldwide makes a larger contribution to sea level rise than the melting of ice sheets on Greenland and Antarctica does.
- Paleontology
Of penguins’ range and climate change
Variations in the range of Adélie penguins along one section of Antarctica's coast during the past 45,000 years are a keen indicator of climate change there.
- Ecosystems
An unexpected, thriving ecosystem
A diverse group of creatures beneath an Antarctic ice shelf could give pause to researchers who infer past ecological conditions from fossils found in such sediments.
- Earth
Subglacial lakes may influence ice flow
The flow of water into and out of massive, ice-covered lakes in Antarctica may influence the speed at which the overlying glaciers move toward the sea.
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- Animals
Low Life: Cold, polar ocean looks surprisingly rich
The first survey of life in deep waters around Antarctica has turned up hundreds of new species and a lot more variety than explorers had expected.
- Earth
Southern seas slow their uptake of CO2
In recent decades, the rate at which oceans in the Southern Hemisphere soak up atmospheric carbon dioxide has slowed.
- Earth
Icebergs can be biological hot spots
Icebergs carry nutrients from the land and shed them into the sea, nourishing life in the frigid waters near Antarctica.
- Ecosystems
Sea Change: People have affected what penguins eat
Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem.
- Earth
Light reaches deep in southeast Pacific
In a remote part of the southeastern Pacific where marine life is sparse, ultraviolet light penetrates to unprecedented depths.
- Life
Time to chill
Well-preserved fossils deposited in an Antarctic lake about 14 million years ago pin down when a large part of the now-icy continent most recently dipped below freezing.
- Life
Compass creatures
Herds of grazing and resting deer and cattle tend to align themselves with the Earth’s magnetic field, a hint that the large mammals can somehow sense the invisible field.
