During the last ice age, massive icebergs periodically broke off from an ice sheet covering a large swath of North America and discharged rapidly melting ice into the North Atlantic Ocean around Greenland, triggering abrupt ...
Earth Sciences
Apr 24, 2023
0
111
Even in their dark isolation from the atmosphere above, caves can hold a rich archive of local climate conditions and how they've shifted over the eons. Formed over tens of thousands of years, speleothems—rock formations ...
Earth Sciences
Mar 2, 2023
0
97
A new study using evidence from a highly detailed ice core from West Antarctica shows a consistent link between abrupt temperature changes on Greenland and Antarctica during the last ice age, giving scientists a clearer picture ...
Earth Sciences
Apr 29, 2015
5
1184
Using a first-of-its-kind, high-resolution numerical model to describe ocean circulation during the last ice age about 21,000 year ago, oceanographer Alan Condron of the University of Massachusetts Amherst has shown that ...
Earth Sciences
Oct 12, 2014
12
0
A new set of long-term climate records based on cave stalagmites collected from tropical Borneo shows that the western tropical Pacific responded very differently than other regions of the globe to abrupt climate change events. ...
Earth Sciences
Jun 6, 2013
78
0
(PhysOrg.com) -- A team of scientists - led by Professor Andrew C Scott of the Department of Earth Sciences at Royal Holloway, University of London - have revealed that neither comet nor catastrophe were the cause for abrupt ...
Earth Sciences
Jun 17, 2010
2
0
(PhysOrg.com) -- What do abrupt changes in ocean circulation and Earth's climate, shifts in wildlife populations and ecosystems, the global finance market and its system-wide crashes, and asthma attacks and epileptic seizures ...
Ecology
Sep 2, 2009
4
0
In past ice ages, the intensity of summer insolation affected the emergence of warm and cold periods and played an important role in triggering abrupt climate changes, a study by climate researchers, geoscientists, and environmental ...
Earth Sciences
Jul 31, 2023
0
93
A professor emeritus at Tohoku University has unearthed evidence pointing to a strong relationship between the magnitude of mass extinctions and global temperature changes in geologic times.
Earth Sciences
Jul 22, 2022
5
408
Abrupt changes in ice core samples and other records indicate dramatic changes in climate occurred at certain points in the past.
Earth Sciences
Nov 16, 2021
0
144
