Search Results for: antarctica
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1,391 results
1,391 results for: antarctica
- Agriculture
Fluid Security—Overcoming Water Shortfalls in the 21st Century
About 70 percent of Earth’s surface is covered with water, some 1.4 billion cubic kilometers of it. Too bad almost 96.5 percent of it’s salty, and another 2 percent is locked away as ice in remote places such as Greenland and Antarctica. All told, just a little more than 1 percent of our planet’s water […]
- Earth
Climate’s Long-Lost Twin
New geological evidence suggests that humans have started exploiting fossil fuels and altering Earth's atmosphere at precisely the moment when greenhouse gases could do the most damage to climate.
- Science & Society
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
- Astronomy
Balloon Sounds Out the Early Universe
A balloon-borne experiment circling Antarctica has measured the curvature of the universe and revealed that it's perfectly flat.
- Earth
On Thinning Ice
Although some of Earth's glaciers seem to be holding their own in the face of global warming, most of them are on the decline, many of them significantly.
- Humans
Science News of the Year 2003
A review of important scientific achievements reported in Science News during the year 2003.
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19003
This article says, “While tornadoes are most common on the Great Plains and throughout the Mississippi River valley, they can occur almost anywhere in the United States.” Are tornadoes unique or more common in North America than elsewhere? Ruth HousmanNewton Center, Mass. Tornadoes have been spotted on every continent except Antarctica, says Harold Brooks of […]
- Earth
Monitors get weird vibes from Antarctic
In late 2000, seismometers on islands in the South Pacific picked up vibrations that were eventually traced to a large iceberg drifting in the Ross Sea north of Antarctica.
- Planetary Science
Echoes of Icequakes: Simple probe could measure Europa’s ocean and icy shell
A football-size space probe could provide a low-cost way to determine whether there's a liquid ocean on the Jovian moon Europa.
- Chemistry
Volcanoes aren’t a big source of CFCs
Ozone-depleting chlorofluorocarbons in the atmosphere come mainly from human-made sources, not from volcanoes as some have suggested.
- Earth
Toxic metals taint ancient dust
A new study of dust lofted to Antarctica suggests that excess amounts of trace metals coated dust grains long before human industrial activity began loading the atmosphere with pollutants.
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How whales, dolphins, seals dive so deep
The blue whale, bottlenose dolphin, Weddell seal, and elephant seal cut diving energy costs 10 to 50 percent by simply gliding downward.
