HOME >> BIOLOGY >> NEWS
Oldest Ice Core From The Tropics Recovered, New Ice Age Evidence

COLUMBUS, Ohio -- An analysis of ice cores drilled from a glacier atop a Bolivian volcano is painting a vivid picture of climate conditions in the tropics over the past 25,000 years. The ice at the bottom of the cores was formed during the last glacial maximum -- the coldest part of the last ice age -- making it the oldest core recovered from the tropics.

In a paper in the journal Science, the research team describes a climate in the tropics that was different from what many researchers have thought. The findings are the latest result from a 20-year effort to build a global climate record that reaches from the North to the South Pole.

Lonnie Thompson, professor of geological sciences and research scientist with the Byrd Polar Research Center at Ohio State University, said that the new cores are the best evidence yet that the tropics were much cooler during the last glacial stage.

Until very recently, most researchers believed that only the polar and mid-latitude regions experienced drastic cooling during that period and that the tropics were largely unaffected.

The new cores also showed that the in the region was eight times less dusty during the height of that last ice age than it is now. A decrease in dust indicates that the regional climate was the much wetter at the time, he said.

Thompson's team included researchers from Ohio State, Pennsylvania State U
'"/>

Contact: Lonnie Thompson
thompson.3@osu.edu
614-292-6531
Ohio State University
3-Dec-1998


Page: 1 2 3 4 5

Related biology news :

1. Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
2. Oldest known evidence of cat taming found in Cyprus, researchers report in Science
3. Oldest-known arm bone found in Pennsylvania
4. Oldest crystal reveals early Earth
5. Earlier water on Earth? Oldest rock suggests hospitable young planet
6. Flatworms Are Oldest Living Ancestors To Those Of Us With Right And Left Sides, Reported In The 19 March Issue Of Science
7. Chinese And US Scientists Identify The Worlds Oldest Flowering Plant
8. Worlds Oldest Known Fossil Reptile Nests Discovered In Arizonas Petrified Forest
9. American Museum Of Natural History Researchers Announce Discovery Of Oldest Known Fossil Ants - 92-Million-Year-Old Fossils Found In New Jersey Amber
10. Evidence builds for potential new cancer drug target
11. Evidence for sympatric speciation by host shift in the sea

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/20/2017)... July 20, 2017 Delta (NYSE: DAL ) customers ... Delta aircraft at Reagan Washington National Airport (DCA). ... Delta launches biometrics to board aircraft ... Delta,s biometric boarding pass ... is now integrated into the boarding process to allow eligible Delta ...
(Date:6/30/2017)... June 30, 2017 Today, American Trucking ... supplier of face and eye tracking software, became ... provider program. "Artificial intelligence and ... to monitor a driver,s attentiveness levels while on ... able to detect fatigue and prevent potential accidents, ...
(Date:6/23/2017)... N.Y. , June 23, 2017  IBM (NYSE: ... dairy research, today announced a new collaboration using next-generation ... chances that the global milk supply is impacted by ... Cornell University has become the newest academic institution to ... a food safety initiative that includes IBM Research, Mars, ...
Breaking Biology News(10 mins):
(Date:7/20/2017)... ... July 20, 2017 , ... The Arnold ... Elihu Thomson Professor of Electrical Engineering and Computer Science at the Massachusetts Institute ... annually, the award recognizes an individual who has made and is continuing to ...
(Date:7/20/2017)... ... July 20, 2017 , ... Resoundant, Inc. is pleased ... centers around the U.S. that offer MR Elastography for liver fibrosis staging. ... biopsy for staging liver fibrosis assessment. , “MRE:connect was created in response to ...
(Date:7/20/2017)... ... July 20, 2017 , ... Dr. Asher Kimchi, Founder and Chairman of the ... IAC Awards at the 22nd World Congress on Heart Disease held in Vancouver, BC, ... receive the Distinguished Fellowship Awards. , Dr. Asher Kimchi, together with Co-Chairmen Dr. John ...
(Date:7/20/2017)... , ... July 20, 2017 , ... ... health-related quality of life, today announced its full advisory board. The board comprises ... the promotion of James Crooks, PhD, former VP of Engineering, to Chief Technology ...
Breaking Biology Technology:
Cached News: