HOME >> BIOLOGY >> NEWS
Researchers identify a 'heartbeat' in Earth's climate

A few years ago, an international team of researchers went to the middle of the Pacific Ocean and drilled down five kilometers below sea level in an effort to uncover secrets about the earth's climate history. They exceeded their expectations and have published their findings in the Dec. 22 edition of the journal Science.

The researchers' drilling produced pristine samples of marine microfossils, otherwise known as foraminifera. Analysis of the carbonate shells of these microfossils, which are between 23 million to 34 million years-old, has revealed that the Earth's climate and the formation and recession of glaciation events in the Earth's history have corresponded with variations in the earth's natural orbital patterns and carbon cycles.

The researchers were particularly interested in these microfossils because they came from the Oligocene epoch, a time in Earth's history known for falling temperatures.

"The continuity and length of the data series we gathered and analyzed allowed for unprecedented insights into the complex interactions between external climate forcing, the global carbon cycle and ice sheet oscillations," said Dr. Jens Herrle, co-author of the paper and a micropaleontology professor at the University of Alberta.

The authors also show how simple models of the global carbon cycle, coupled to orbital controls of global temperature and biological activity, are able to reproduce the important changes observed after the world entered an "ice-house" state about 34 million years ago.

In the early half of the 20th century, Serbian physicist Milutin Milankovitch first proposed that cyclical variations in the Earth-Sun geometry can alter the Earth's climate and these changes can be discovered in the Earth's geological archives, which is exactly what this research team, consisting of members from the United Kingdom, the U.S. and Canada, has done.

"This research is not only concerned with the c
'"/>

Contact: Ryan Smith
ryan.smith@ualberta.ca
780-492-0436
University of Alberta
21-Dec-2006


Page: 1 2

Related biology news :

1. Researchers find pathway that controls cell size and division
2. Researchers watch antibiotics, bacteria meet at atomic level
3. Researchers discover gene responsible for Restless Legs Syndrome
4. Researchers witness natural selection at work in dramatic comeback of male butterflies
5. Researchers discover human embryonic stem cells are the ultimate perpetual fuel cell
6. Researchers use new approach to predict protein function
7. Researchers probe risks, benefits of folic acid fortification
8. Researchers identify genetic mutation that may alter tumor cell proliferation
9. Researchers discover method for identifying how cancer evades the immune system
10. Researchers use adult stem cells to create soft tissue
11. Researchers find gene that spurs development of the epididymis

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


(Date:5/14/2019)... ... May 13, 2019 , ... ... 4th, at a very special Pre-EWMA 2019 event at Gothenburg’s Universeum Aquarium. Guests ... Trends, Opportunities and Innovations in Advanced Wound Care. , SmartTRAK’s Advanced Wound Care ...
(Date:5/8/2019)... ... May 07, 2019 , ... Modality ... invitation-only community for world-class CIOs, CTOs, and technology executives. Modality Solutions ... firm that guarantees confidence in a company’s cold chain. Subject-matter experts provide ...
(Date:5/8/2019)... Conn. and TORONTO (PRWEB) , ... May 08, ... ... growth recapitalization of Axiom Real-Time Metrics (“Axiom”), a premier provider of unified eClinical ... II and III clinical trials and observational studies. Axiom is a leading e-clinical ...
Breaking Biology News(10 mins):
(Date:5/7/2019)... VANCOUVER, British Columbia (PRWEB) , ... May 06, ... ... will be a go-to resource for the growing number of repositories being asked ... We are grateful to the team of contributors who are world leaders, ...
(Date:5/2/2019)... ... April 30, 2019 , ... ... ISO 9001:2015 standard, REPROCELL USA Inc. has demonstrated its ability to provide ... USA Inc. aims to enhance customer satisfaction through the effective implementation of ...
(Date:5/2/2019)... ... May 02, 2019 , ... ... company, will present results documenting discrepancies between U.S. insurer policies for genetic testing ... at risk for hereditary breast and ovarian cancer (HBOC). , Jill ...
(Date:4/25/2019)... ... April 24, 2019 , ... ... for sales and service organizations, today announced global availability of Inference Studio’s latest ... enterprises of all sizes to harness the power of Google’s Contact Center ...
Breaking Biology Technology:
Cached News: