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Latest Quaternary glaciation Stories

Notre Patrimoine Polaire***Our Polar Heritage
2014-09-07 03:00:11

Mark Floyd, Oregon State University A new study of three ice cores from Greenland documents the warming of the large ice sheet at the end of the last ice age – resolving a long-standing paradox over when that warming occurred. Large ice sheets covered North America and northern Europe some 20,000 years ago during the coldest part of the ice age, when global average temperatures were about four degrees Celsius (or seven degrees Fahrenheit) colder than during pre-industrial times. And...

sun influences climate
2014-08-20 03:00:09

Lund University A new study from Lund University in Sweden has, for the first time, reconstructed solar activity during the last ice age. The study shows that the regional climate is influenced by the sun and offers opportunities to better predict future climate conditions in certain regions. For the first time, a research team has been able to reconstruct the solar activity at the end of the last ice age, around 20 000–10 000 years ago, by analyzing trace elements in ice cores in...

explaining the Last Glacial Maximum
2014-06-03 05:48:44

redOrbit Staff & Wire Reports - Your Universe Online A team of MIT scientists has turned to the Southern Ocean in search of an explanation for the Last Glacial Maximum (LGM), a period in the Earth's climate history during which the northern continents were covered by ice sheets, according to new research appearing in the Proceedings of the National Academy of Sciences. Plankton fossils in deep-sea sediments contain chemical traces that reveal rearranged ocean water masses, as well...

Understanding How Climatic Relationships Led To Major Ice Age Cycles
2014-04-17 07:45:44

April Flowers for redOrbit.com - Your Universe Online A new study has developed crucial new information about how the ice ages came about based on newly discovered relationships between deep-sea temperature and ice-volume changes. The international team of researchers, led by the University of Southampton, developed a new method for determining sea-level and deep-see temperature variability over the past 5.3 million years. Their findings were published in a recent issue of Nature. The...

Lake Towuti
2014-03-25 12:05:49

Brown University Using sediments from a remote lake, researchers from Brown University have assembled a 60,000-year record of rainfall in central Indonesia. The analysis reveals important new details about the climate history of a region that wields a substantial influence on the global climate as a whole. The Indonesian archipelago sits in the Indo-Pacific Warm Pool, an expanse of ocean that supplies a sizable fraction of the water vapor in Earth's atmosphere and plays a role in...

Earth's Climatic History Was Written In Dust
2014-01-25 05:28:19

April Flowers for redOrbit.com - Your Universe Online Polarstern, a research icebreaker, returned from the South Pacific in 2010 with a scientific treasure. The treasure, described in a recent issue of Science, consisted of ocean sediments from a previously almost unexplored part of the South Polar Sea. To geological history researchers, these inconspicuous mud samples are a valuable archive from which they can reconstruct the climatic history of the polar areas over many years of...

Lake Elgygytgyn
2013-05-10 05:02:04

April Flowers for redOrbit.com - Your Universe Online An international team of scientists, led by Julie Brigham-Grette of the University of Amherst, has analyzed the longest continental sediment core ever collected in the Arctic to provide “absolutely new knowledge” of Arctic climate from 2.2 million to 3.6 million years ago. "While existing geologic records from the Arctic contain important hints about this time period, what we are presenting is the most continuous archive...

Record Warming Will Lead To Faster Melting Glaciers And The Loss Looks Irreversible
2013-03-08 08:56:04

April Flowers for redOrbit.com - Your Universe Online In the next few centuries, Canada's Arctic Archipelago glaciers will melt faster than ever, according to a new study. Research has revealed that 20 percent of the Canadian Arctic glaciers may have disappeared by the end of our current century, leading to an additional sea level rise of 1.4 inches. The findings, funded in part by EU's ice2sea program, are available online and will be published in an upcoming issue of Geophysical...

Greenhouse Gas Associated With High Sea Levels Over Past 40 Million Years
2013-01-03 09:12:39

April Flowers for redOrbit.com - Your Universe Online Researchers based at the National Oceanography Centre, Southampton, have found that greenhouse gas concentrations similar to the present — almost 400 parts per million - were systematically associated with sea levels at least 30 feet above current levels by comparing reconstructions of atmospheric CO2 concentrations and sea level over the past 40 million years. The study, published online in the Proceedings of the National...

Atlantic Heat Pump Was Once Faster
2012-10-16 13:39:01

April Flowers for redOrbit.com - Your Universe Online A new study from an international team of scientists led by environmental physicists at Heidleberg University in Germany suggests that the circulation of the Atlantic Ocean was faster during the last Ice Age than today. It has long been assumed that heat transport in the Atlantic Ocean during the last Ice Age was weaker, but according to the new data, it appears that it was actually stronger than it currently is. The team used...


Word of the Day
maffling
  • To stammer.
  • Present participle of maffle, to stammer.
  • A simpleton.
The word 'maffle' may come from a Dutch word meaning 'to move the jaws' or a French word meaning 'having large cheeks'.