Quantcast

Latest Paleoclimatology Stories

Habitat Changes Caused Turtle Collapse 71 Million Years Ago
2013-03-15 15:16:49

Lee Rannals for redOrbit.com — Your Universe Online About 71-million-years ago, turtles disappeared from Alberta's Drumheller area, and scientists have been blaming dramatic climate change as the culprit. Now, a new theory published in the journal Palaeogeography, Palaeoclimatology, Palaeoecology suggests the real reason was because of habitat changes. Researchers at the University of Calgary studying ancient soil in Red Deer River valley say it was the loss of the wetlands that...

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...

Studying Ancient Insects Opens The Window On Biodiversity
2013-02-13 14:29:36

Brett Smith for redOrbit.com - Your Universe Online Global climate has shifted countless times during the course of Earth´s history and a group of Canadian scientists has found the biodiversity patterns of today´s tropical mountain regions were present in British Columbia about 50 million years ago. According to the team´s report in Palaeogeography, Palaeoclimatology, Palaeoecology, their findings confirm a theory about modern species diversity across mountain ranges, and...

Significant Technological Milestones Reached By Trio of Complex Antarctic Science Projects
2012-12-21 13:38:46

National Science Foundation Drilling-related breakthroughs funded by NSF expected to advance "frontier science" in a variety of disciplines Three very large-scale, National Science Foundation-funded Antarctic science projects--investigating scientifically significant subjects as varied as life in extreme ecosystems, the fate of one of the world's largest ice sheets and the nature of abrupt global climate-change events--have recently each reached important technological milestones that...

Researchers Use Poop To Track Prehistoric Humans
2012-11-27 11:55:50

April Flowers for redOrbit.com - Your Universe Online Disentangling the effects of climate change from those related to human activities is a major challenge for scientists who study the Earth's environmental history. Researchers from the University of Massachusetts, Amherst have recently gotten creative with poop, using a special biomarker found in human feces to establish the first human presence, the appearance of grazing animals and human population dynamics in a landscape. "We are...

2012-10-19 16:58:40

Annual strata in the Japanese Lake Suigetsu enable a more accurate calibration of radiocarbon datings By using a new series of measurements of radiocarbon dates on seasonally laminated sediments from Lake Suigetsu in Japan, a more precise calibration of radiocarbon dating will be possible. In combination with an accurate count of the seasonal layered deposits in the lake, the study resulted in an unprecedented precision of the known 14C method with which it is now possible to date older...

Radio Carbon Dating Improved With Sediment Measurementss
2012-10-19 13:02:37

April Flowers for redOrbit.com - Your Universe Online A research team from Oxford University's Radiocarbon Accelerator Unit has found a more accurate benchmark for dating materials, especially for older objects, from a series of radiocarbon measurements from Japan's Lake Suigetsu. As far back as 1993, researchers realized sediment cores from Lake Suigetsu would be useful for radiocarbon dating. However, the initial efforts encountered technical problems. The current team extracted...

More Than A Million Years of Climate History Revealed
2012-08-10 13:25:58

April Flowers for redOrbit.com - Your Universe Online A new study from the University of Cambridge Department of Earth Sciences has successfully reconstructed temperature from the deep sea to reveal how global ice volume has varied over the glacial-interglacial cycles of the past 1.5 million years. The study, "Evolution of ocean temperature and ice volume through the Mid-Pleistocene Climate Transition," reported in the journal Science, announces a major breakthrough in understanding...

Tropical Climate In The Antarctic
2012-08-01 14:14:47

Palm trees once thrived on today's icy coasts 52 million years ago Given the predicted rise in global temperatures in the coming decades, climate scientists are particularly interested in warm periods that occurred in the geological past. Knowledge of past episodes of global warmth can be used to better understand the relationship between climate change, variations in atmospheric carbon dioxide and the reaction of Earth's biosphere. An international team led by scientists from the Goethe...

Climate Of Northern Europe Reconstructed Of The Past 2,000 Years
2012-07-09 12:23:11

The calculations prepared by Mainz scientists will also influence the way current climate change is perceived An international team that includes scientists from Johannes Gutenberg University Mainz (JGU) has published a reconstruction of the climate in northern Europe over the last 2,000 years based on the information provided by tree-rings. Professor Dr. Jan Esper's group at the Institute of Geography at JGU used tree-ring density measurements from sub-fossil pine trees originating from...


Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.