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:
TAG: Tropical glaciers formed while earth was giant snowball

(Date:12/5/2014)... 2014  Tute Genomics, a leader in cloud-based solutions ... A1 funding led by UK-based Eurovestech. Peak Ventures and ... investment round. "We are at a pivotal ... sequencing and seeks new approaches for the diagnosis, treatment ... MD MBA, and CEO of Tute Genomics. "One of ...
(Date:11/21/2014)... , Nov. 19, 2014  Earlier this year ... New York College, and one of the most prolific ... signals that are transmitted from Smartphones to third party ... Smartphones and has one of the earliest known patents ... its usage in the military, child care, elder care ...
(Date:11/18/2014)... 2014   News Highlights: ... develop The Partners Data Lake, an agile data ... Lake will allow researcher and clinicians to explore ... the lives of patients , The Partners ... across the Partners system, breaking down physical barriers ...
Breaking Biology News(10 mins):Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 2Tute Genomics Raises $2.3 Million to Scale Up Cloud-Based Genome Analytics and Accelerate Personalized Medicine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 2Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 3Patented Biosensor Wearable Technology Provides a More Civilized Method of Quarantine 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 2Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 3Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 4Partners HealthCare and EMC Unite to Solve Health Care's Toughest Challenges Using Big Data 5
(Date:12/15/2014)... -- Origin Agritech Limited (NASDAQ GS: SEED) (" Origin ", or ... in China , today announced that the ... September 30, 2014, before the market opens on Thursday, January ... on January 8, 2015, at 8:00 a.m. ET / 9:00 ... results. To participate in the call, please dial +1-888-346-8982 in ...
(Date:12/13/2014)... N.C. (PRWEB) December 13, 2014 CanDiag, ... Charlotte) spin-out company has changed its name to OncoTab, ... accurate representation of where we are today,” said CEO ... extended our platform’s applications beyond breast cancer diagnostics to ... a reflection of that evolution.” , Founded in 2011 ...
(Date:12/13/2014)... 2014 Clarassance, a privately held clinical-stage ... name: Therabron Therapeutics , Inc. The new name ... type of structure in the lungs similar to branches ... develop novel protein therapeutics for the treatment of respiratory ... change the name to mark the company's escalation into ...
(Date:12/13/2014)... 12, 2014 Trend lines for photonics ... global economic growth, Eugene Arthurs, CEO of SPIE, ... in a featured talk at OPTIC (Optics and Photonics ... National Chung Hsing University in Taichung. , As examples, ... future energy supplies and soon to hit US$50 billion ...
Breaking Biology Technology:Origin Agritech Limited to Announce Fiscal 2014 Annual Financial Results on January 8th, 2015 2Origin Agritech Limited to Announce Fiscal 2014 Annual Financial Results on January 8th, 2015 3CanDiag Inc. Expands Product Scope Under a New Name: OncoTab, Inc. 2Maryland-based Biotech Company's Path Forward in Treating Respiratory Diseases Sparks Name Change 2Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 2Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 3Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 4Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 5
Cached News: