An unknown culprit has been removing oxygen from our atmosphere for at least 800,000 years, and an analysis of air bubbles preserved in Antarctic ice for up to 1.5 million years has revealed the likely suspect.
Earth Sciences
Dec 20, 2021
0
1861
In an analysis of the past 1.2 million years, UC Santa Barbara geologist Lorraine Lisiecki discovered a pattern that connects the regular changes of the Earth's orbital cycle to changes in the Earth's climate. The finding ...
Earth Sciences
Apr 6, 2010
24
4
An international research team used a computer model to reconstruct the history of glaciation in the Alps, visualising it in a two-minute computer animation. The simulation aims to enable a better understanding of the mechanisms ...
Earth Sciences
Nov 6, 2018
1
137
Unprecedented levels of greenhouse gases in the Earth's atmosphere are disrupting normal patterns of glaciation, according to a study co-authored by a University of Florida researcher and published online Jan. 8 in Nature ...
Earth Sciences
Jan 8, 2012
114
0
During the last ice age, massive glaciers covered much of our planet. However, a region of Alaska, Siberia and the Canadian Yukon remained ice-free. This region, known as Beringia, supported unique organisms and was an important ...
Earth Sciences
Oct 29, 2009
3
0
(PhysOrg.com) -- A University of Southampton archaeologist and Oxford Archaeology have found evidence that Neanderthals were living in Britain at the start of the last ice age, 40,000 years earlier than previously thought.
Archaeology
Jun 1, 2010
0
0
(PhysOrg.com) -- Researchers here have discovered the pivotal role that volcanoes played in a deadly ice age 450 million years ago.
Earth Sciences
Oct 26, 2009
3
0
For insight into what can happen when the Earth's carbon cycle is altered -- a cause and consequence of climate change -- scientists can look to an event that occurred some 720 million years ago.
Earth Sciences
May 1, 2010
5
0
A team of U.S. and U.K. scientists has found geologic evidence that casts doubt on one of the conventional explanations for how Antarctica's ice sheet began forming. Ian Dalziel, research professor at The University of Texas ...
Earth Sciences
Jul 11, 2013
0
0
It is rather difficult to imagine, but approximately 635 million years ago, ice may have covered a vast portion of our planet in an event called "Snowball Earth." According to the Snowball Earth hypothesis, the massive ice ...
Earth Sciences
Feb 28, 2013
18
0
