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Latest Ice ages Stories

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2009-12-17 06:00:00

Global warming in this century might raise sea levels more than expected in future centuries, says a study that looked at what happened at a time when Neanderthals roamed Europe. Unless global warming is curbed or expensive measures are taken to hold back rising water, the projected sea level rise could submerge about one-third of Florida, southern Manhattan, much of Bangladesh and almost all the Netherlands, for example, researchers said. An expert praised the work but cautioned that such...

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2009-11-20 08:15:00

A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages may have been higher than previously thought A new study of Antarctica's past climate reveals that temperatures during the warm periods between ice ages (interglacials) may have been higher than previously thought. The latest analysis of ice core records suggests that Antarctic temperatures may have been up to 6°C warmer than the present day. The findings, reported this week by...

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2009-11-06 10:06:14

The seriousness of current global warming is underlined by a reconstruction of climate at Maxwell Bay in the South Shetland Islands of the Antarctic Peninsula over approximately the last 14,000 years, which appears to show that the current warming and widespread loss of glacial ice are unprecedented. "At no time during the last 14 thousand years was there a period of climate warming and loss of ice as large and regionally synchronous as that we are now witnessing in the Antarctic Peninsula,"...

2009-10-26 14:39:36

Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago. Perhaps ironically, these volcanoes first caused global warming -- by releasing massive amounts of carbon dioxide into the atmosphere. When they stopped erupting, Earth's climate was thrown off balance, and the ice age began. The discovery underscores the importance of carbon in Earth's climate today, said Matthew Saltzman, associate professor of earth sciences at Ohio State...

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2009-10-20 08:12:07

In 2007 alone, it lost volume equivalent to draining San Francisco Bay every week Not that long ago "“ the blink of a geologic eye "“ global temperatures were so warm that ice on Greenland could have been hard to come by. Today, the largest island in the world is covered with ice 1.6 miles thick. Even so, Greenland has become a hot spot for climate scientists. Why? Because tiny bubbles trapped in the ice layers may help resolve a fundamental question about global warming: how fast...

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2009-10-20 07:55:00

An analysis of sediment cores indicates that biological and chemical changes occurring at a remote Arctic lake are unprecedented over the past 200,000 years and likely are the result of human-caused climate change, according to a new study led by the University of Colorado at Boulder. While environmental changes at the lake over the past millennia have been shown to be tightly linked with natural causes of climate change -- like periodic, well-understood wobbles in Earth's orbit -- changes...

2009-10-07 11:38:39

The 'Coastland Map' produced by scientists from Durham University and published in the Journal GSA Today, charts the post Ice-Age tilt of the UK and Ireland and current relative sea-level changes. According to the map, the sinking effect in the south could add between 10 and 33 per cent to the projected sea-level rises caused by global warming over the next century. * The projections are less than previous estimations for subsidence and could help local authorities to save money on sea and...

2009-09-29 10:21:16

U.S. geoscientists say they've found evidence that northern hemisphere climate swings during the past 12,000 years are linked to changes in the tropics. University of New Hampshire and Columbia University scientists said their finding suggests a prolonged cold spell caused European and North American glaciers to creep forward several hundred years ago, possibly affecting climate patterns as far south as Peru and causing tropical glaciers to also expand. Glaciers in both the tropics and North...

2009-09-17 11:05:12

British scientists say they have created a model of the British and Irish ice sheets that shows they moved in unexpected ways. Durham University researchers said their model reveals for the first time how the glaciers reversed their flows and retreated back into upland regions from where they originated. During the last glacial maximum, around 21,500 years ago, the ice sheets built up on the high land of the Lake District, north Pennines and Scottish Southern Uplands, the researchers said. As...

2009-09-01 14:15:45

An international team of scientists, led by Denmark, says it set a single-season deep ice core drilling record this summer in Greenland. The researchers, with the University of Colorado at Boulder as the lead U.S. institution, recovered more than a mile of ice core that is expected to help scientists better assess the risks of abrupt climate change in the future. The project, known as the North Greenland Eemian Ice Drilling, is being undertaken by 14 nations led by the University of...