Not long ago, geologically speaking, a now-vanished lake covered a huge expanse of today's Canadian prairie. As big as Hudson Bay, the lake was fed by melting glaciers as they receded at the end of the last ice age. At its ...
Earth Sciences
Oct 5, 2011
0
0
A new study reports that charcoal particles left by wildfires in sediments of 35 North American lake beds don't readily support the theory that comets exploding over the continent 12,900 years ago sparked a cooling period ...
Earth Sciences
Jan 28, 2009
0
0
Researchers at The University of Texas at Austin have found that a well-known period of abrupt climate change 12,000 years ago occurred rapidly in northern latitudes but much more gradually in equatorial regions, a discovery ...
Earth Sciences
Sep 2, 2015
1
71
(Phys.org) —A team of researchers with members from several universities in the U.S. has published a paper in the journal Proceedings of the National Academy of Sciences, claiming that evidence supporting the notion that ...
In a University of Oklahoma-led study, researchers discovered an additional active process, not excluding an extraterrestrial event, that may have led to high concentrations of nanodiamonds in Younger Dryas-age sediments ...
Earth Sciences
Jan 27, 2014
2
3
Why did the Jakobshavn Isbræ ice stream in West Greenland retreat under a cold climate period called the Younger Dryas? A research article, published in Nature Communications, shows that a warmer ocean surface in central-eastern ...
Earth Sciences
Oct 19, 2017
0
4
The remains of a buried pine forest at the foot of Mont Saint Genis in Southern France yield insightful information on a drastic climate change event. The pine tree stand initiated around 12,900 years ago during the relatively ...
Earth Sciences
Sep 19, 2018
0
8
The climate of the Earth follows a complex interplay of cause-and-effect chains. A change in precipitation at one location may be caused by changes on the other side of the planet. A better understanding of these "teleconnections"—the ...
Earth Sciences
Mar 31, 2017
0
14
(Phys.org) —A University of Maine research team says stratification of the North Atlantic Ocean contributed to summer warming and glacial melting in Scotland during the period recognized for abrupt cooling 12,900 to 11,600 ...
Earth Sciences
Apr 16, 2014
0
0
