Absence of evidence for a meteorite impact event 13,000 years ago
An international team of scientists led by researchers at the University of Hawaii at Manoa have found no evidence supporting an extraterrestrial impact event at the onset of the Younger Dryas ~13000...
View ArticleEvidence of past Southern hemisphere rainfall cycles related to Antarctic...
Geoscientists at the University of Massachusetts Amherst and the University of Minnesota this week published the first evidence that warm-cold climate oscillations well known in the Northern Hemisphere...
View ArticleArctic climate more vulnerable than thought, maybe linked to Antarctic...
First analyses of the longest sediment core ever collected on land in the terrestrial Arctic, published this week in Science, provide documentation that intense warm intervals, warmer than scientists...
View ArticleIce-free Arctic may be in our future, says research
Analyses of the longest continental sediment core ever collected in the Arctic, recently completed by an international team led by Julie Brigham-Grette of the University of Massachusetts Amherst,...
View ArticleGreenland ice cores show industrial record of acid rain, success of US Clean...
The rise and fall of acid rain is a global experiment whose results are preserved in the geologic record.
View ArticleCorals provide clues for climate change research
(Phys.org) —Just as growth rings can offer insight into climate changes occurring during the lifespan of a tree, corals have much to tell about changes in the ocean. At Caltech, climate scientists Jess...
View ArticleScientists Return from Expedition to Drill Beneath Frozen Russian Lake
(PhysOrg.com) -- A team of scientists from the United States, Germany, Russia and Austria has just returned from a six-month drilling expedition to a frozen lake in Siberia: Lake El'gygytgyn, "Lake E"...
View ArticleNew proxy reveals how humans have disrupted the nitrogen cycle
More and more, scientists are getting a better grip on the nitrogen cycle. They are learning about sources of nitrogen and how this element changes as it loops from the nonliving, such as the...
View ArticleSearching for an interglacial on Greenland
The first season of the international drilling project NEEM (North Greenland Eemian Ice Drilling) in north-western Greenland was completed at August 20th.
View ArticleInternational Greenland Ice Coring Effort Sets New Drilling Record in 2009
(PhysOrg.com) -- A new international research effort on the Greenland ice sheet with the University of Colorado at Boulder as the lead U.S. institution set a record for single-season deep ice-core...
View ArticleAs Greenland melts
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...
View ArticleSea Level Is Rising Along U.S. Atlantic Coast, According to New Data Analysis
(PhysOrg.com) -- An international team of environmental scientists led by the University of Pennsylvania has shown that sea-level rise along the Atlantic Coast of the United States was 2 millimeters...
View ArticleIce core drilling effort to help assess abrupt climate change risks
An international science team involving the University of Colorado at Boulder that is working on the North Greenland Eemian Ice Drilling project hit bedrock July 27 after two summers of work, drilling...
View ArticleBedrock is a milestone in climate research
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...
View ArticleClimate played big role in Vikings' disappearance from Greenland
The end of the Norse settlements on Greenland likely will remain shrouded in mystery. While there is scant written evidence of the colony's demise in the 14th and early 15th centuries, archaeological...
View Article800,000 years of Greenland's abrupt climate variability
An international team of scientists, led by Dr Stephen Barker of Cardiff University, has produced a prediction of what climate records from Greenland might look like over the last 800,000 years.
View ArticleGreenland ice may exaggerate magnitude of 13,000-year-old deep freeze
Ice samples pulled from nearly a mile below the surface of Greenland glaciers have long served as a historical thermometer, adding temperature data to studies of the local conditions up to the Northern...
View ArticleAn extremely brief reversal of the geomagnetic field, climate variability and...
41,000 years ago, a complete and rapid reversal of the geomagnetic field occured. Magnetic studies of the GFZ German Research Centre for Geosciences on sediment cores from the Black Sea show that...
View ArticleGreenland ice sheet carries evidence of increased atmospheric acidity
(Phys.org)—Research has shown a decrease in levels of the isotope nitrogen-15 in core samples from Greenland ice starting around the time of the Industrial Revolution. The decrease has been attributed...
View ArticleDeep ice cores show past Greenland warm period may be 'road map' for...
A new study by an international team of scientists analyzing ice cores from the Greenland ice sheet going back in time more than 100,000 years indicates the last interglacial period may be a good...
View Article
