Search Results for: antarctica
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1,391 results
1,391 results for: antarctica
- Climate
Guarded optimism on Copenhagen climate talks
Negotiators representing 181 nations completed their final prep work in Barcelona, Spain, last Friday, on a new climate treaty — one that they hope to build a month from now at a major conference in Copenhagen, Denmark. But at least one scientist worries that what comes out of the Copenhagen deliberations may not have sufficient coordination and strength to meet the challenges that Earth’s climate has begun throwing at us.
- Tech
Watching Earth for 25 years
The Landsat 5 satellite launched in 1984 with a mission to orbit and image Earth's surface for three years. Still in orbit, the satellite has continuously documented changes in landscape.
- Chemistry
Nitrous oxide fingered as monster ozone slayer
Nitrous oxide has become the leading threat to the future integrity of stratospheric ozone, scientists report.
- Earth
A more organic meteorite
Some meteorites may contain a higher concentration of organic chemicals than previously thought.
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- Earth
Howdy, neighbor!
About 800 million years ago, East Antarctica, now one of the coldest regions on Earth, abutted what is now Death Valley, Calif., one of the hottest.
- Earth
Unintended consequences
A full recovery of the ozone hole over Antarctica in the coming years could significantly boost warming of the atmosphere over and around the icy continent.
- Earth
Earth: Science news of the year, 2008
Science News writers and editors looked back at the past year's stories and selected a handful as the year's most interesting and important in Earth. Follow hotlinks to the full, original stories.
- 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.
- Earth
Big Gulp, Asian style
Satellite data reveals that increased irrigation pressure is rapidly depleting groundwater in northern India.
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- Space
Water-ice deposits found beneath Martian hills
Using radar from an orbiting spacecraft to penetrate the hidden recesses of Mars, planetary prospectors have uncovered vast reserves of water-ice buried beneath rocky debris.
