HOME >> BIOLOGY >> NEWS
Tropical glaciers formed while earth was giant snowball

rchers have estimated that it required a buildup of carbon dioxide by volcanic outgassing to 300 times today's levels to bring Earth out of snowball Earth, which accounts for the millions of years necessary to reverse the process.

Some scientists question whether life could have survived a full snowball-Earth episode, and therefore suggest that the Earth never passed beyond the critical point with sea ice down to about 30 degrees latitude. However, the Penn State results imply that full snowball Earth must have occurred in order to produce the observed tropical glacial deposits at sea level. Others have suggested that oceanic life could have survived full snowball episodes below gaps in the ice around volcanic island, or in tropical oceans where sunlight may have limited sea ice thickness to only a few meters.


'"/>

Contact: A'ndrea Elyse Messer
aem1@psu.edu
814-865-9481
Penn State
31-May-2001


Page: 1 2 3

Related biology news :

1. Tropical legume could be alternative hay/forage crop for Texas
2. Tropical deforestation and global warming
3. Arthropods of Tropical Forests
4. Tropical Science for the 21st Century
5. A Magic Web: The Tropical Forest of Barro Colorado
6. Ira Rubinoff honored by the Association for Tropical Biology
7. Tropical forests under surveillance
8. Tropical scientists find fewer species than expected
9. Sessions on bioterrorism featured at Tropical Medicine Meeting
10. Chemistry in the Amazon: Tropical birds, Amazonian tribespeople derive medicinal benefits from insects, plants
11. Tropical tree distribution could have implications for forest management, conservation

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


(Date:3/9/2017)... VIEW, Calif. , March 9, 2017 ... 23andMe , the leading personal genetics company, are using ... now provide customers with personalized nutrition plans that consider ... but also genetic markers impacting how their body may ... food decision support platform uses biometrics such as Body ...
(Date:3/7/2017)... , March 7, 2017   HireVue , the ... global companies identify the best talent, faster, today announced ... Sales Officer (CSO) and Diana Kucer as ... out a seasoned executive team poised to drive continued growth ... on a year of record bookings in 2017. ...
(Date:3/2/2017)... -- Summary This report provides all the information ... and activities since 2010. ... Read the full report: http://www.reportlinker.com/p03605615-summary/view-report.html ... provides an in-depth insight into the partnering activity of one ... demand company reports are prepared upon purchase to ensure inclusion ...
Breaking Biology News(10 mins):
(Date:4/26/2017)... ... April 26, 2017 , ... Looking ... team-building and cooking events company, offers one-of-a-kind gifts, ranging from gourmet cooking experiences ... California cuisine, and guests leave inspired with new cooking tips and techniques, thanks ...
(Date:4/26/2017)... Palo Alto, CA, USA (PRWEB) , ... April ... ... ComplianceOnline’s popular seminar on FDA’s GMP expectations for phase I clinical trials comes ... was attended by various biotechnology and pharma professionals representing FDA regulated organizations such ...
(Date:4/26/2017)... ... 26, 2017 , ... Baltimore bio tech firm, PathSensors, Inc., ... solution at the National Postal Forum 2017 in Baltimore, Maryland, May 21st through ... easy to use and low cost threat detection solution for government and commercial ...
(Date:4/26/2017)... RESTON, Va. (PRWEB) , ... April 26, 2017 ... ... to make headlines and drive high-level conversations among healthcare industry stakeholders, the discussion ... Healthcare Environment – taking place May 15-18, 2017 in Los Angeles, Calif. Hosted ...
Breaking Biology Technology:
Cached News: