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Latest Quaternary glaciation Stories

0755fb5b33580c4a601b79e55f72d2e2
2011-02-13 08:33:46

A set of maps created by the University of Sheffield have illustrated, for the first time, how our last British ice sheet shrunk during the Ice Age. Led by Professor Chris Clark from the University´s Department of Geography, a team of experts developed the maps to understand what effect the current shrinking of ice sheets in parts of the Antarctic and Greenland will have on the speed of sea level rise. The unique maps record the pattern and speed of shrinkage of the large...

49faa6854115b3d596385ad1a0b03fc1
2011-02-05 07:45:00

Russian scientists are set to pierce through Antarctica's frozen surface to reveal the secrets of an icebound lake that has been sealed deep there for the past 15 million years. Alexei Turkeyev, head of the Russian polar Vostok Station, told Reuters by satellite phone that scientists have "only a bit left to go." His team has been drilling for weeks in a race to reach the lake -- buried 12,000 feet beneath the polar ice cap -- before the end of the brief Antarctic summer. With the...

6967218ba4fdb33835f8a142274bdb481
2011-01-29 11:42:34

About 450 million years ago, Earth suffered the second-largest mass extinction in its history"”the Late Ordovician mass extinction, during which more than 75 percent of marine species died. Exactly what caused this tremendous loss in biodiversity remains a mystery, but now a team led by researchers at the California Institute of Technology (Caltech) has discovered new details supporting the idea that the mass extinction was linked to a cooling climate."While it's been known for a long...

534a09a1d7d2c857a34b860f94a92093
2010-12-01 14:08:31

Southampton researchers have estimated that  sea-level rose by an average of about 1 meter per century at the end of the last Ice Age, interrupted by rapid "Ëœjumps' during which it rose by up to 2.5 meters per century. The findings, published in Global and Planetary Change, will help unravel the responses of ocean circulation and climate to large inputs of ice-sheet meltwater to the world ocean. Global sea level rose by a total of more than 120 meters as the vast ice sheets of...

546c3cc19fd4023584ffa9f923b7373b1
2010-11-16 13:31:47

The landform known as a drumlin, created when the ice advanced during the Ice Age, can also be produced by today's glaciers. This discovery, made by researchers from the University of Gothenburg, Sweden, has just been published in the scientific journal Geology. Drumlins generally consist of an accumulation of glacial debris "“ till "“ and are found in areas that were covered by ice sheet. As the ice advanced, it moved rocks, gravel and sand and created tear-shaped raised ridges...

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2010-09-15 08:44:16

NASA and European researchers have conducted a novel study to simultaneously measure, for the first time, trends in how water is transported across Earth's surface and how the solid Earth responds to the retreat of glaciers following the last major Ice Age, including the shifting of Earth's center of mass. To calculate the changes, scientists at NASA's Jet Propulsion Laboratory, Pasadena, Calif.; Delft University of Technology, Delft, Netherlands; and the Netherlands Institute for Space...

0db7d23d6f50d83644b8d814cc576bf3
2010-09-09 08:23:28

New Zealand glaciers melted as European glaciers briefly expanded As the last ice age was ending, about 13,000 years ago, a final blast of cold hit Europe, and for a thousand years or more, it felt like the ice age had returned. But oddly, despite bitter cold winters in the north, Antarctica was heating up. For the two decades since ice core records revealed simultaneous warming and cooling at opposite ends of the planet during this time period, scientists have looked for an explanation....

6cd3af48f2686b8c03eba0524c7298e51
2010-08-26 23:46:03

Radiocarbon dating is used to determine the age of everything from ancient artifacts to prehistoric corals on the ocean bottom. But in a recent study appearing in the Aug. 26 edition of the journal, Nature, a Lawrence Livermore scientist and his colleagues used the method to trace the pathway of carbon dioxide released from the deep ocean to the atmosphere at the end of the last ice age.The team noticed that a rapid increase in atmospheric CO2 concentrations coincided with a reduced amount of...

57a4a2bd66a42f0806287c0a590626f41
2010-08-06 09:10:00

Boulders deposited by an ancient glacier that once covered the summit of Mauna Kea on the island of Hawaii have provided more evidence of the extraordinary power and reach of global  change, particularly the slowdown of a North Atlantic Ocean current system that could happen again and continues to be a concern to climate scientists. A new study has found geochemical clues near the summit of Mauna Kea that tell a story of ancient glacier formation, the influence of the most recent ice...

d14e80a67bd3fa732c700beec5eba350
2010-08-05 08:28:38

International team of climate researchers drill through a mile and half of the Greenland ice sheet in search of climate change insights After years of concentrated effort, scientists from the North Greenland Eemian Ice Drilling (NEEM) project hit bedrock more than 8,300 feet below the surface of the Greenland ice sheet last week. The project has yielded ice core samples that may offer valuable insights into how the world can change during periods of abrupt warming. Led by Denmark and the...