Navigation Links
Man-made changes bring about new epoch in Earth's history
Date:1/25/2008

Geologists from the University of Leicester propose that humankind has so altered the Earth that it has brought about an end to one epoch of Earths history and marked the start of a new epoch.

Jan Zalasiewicz and Mark Williams at the University of Leicester and their colleagues on the Stratigraphy Commission of the Geological Society of London have presented their research in the journal GSA Today.

In it, they suggest humans have so changed the Earth that on the planet the Holocene epoch has ended and we have entered a new epoch - the Anthropocene.

They have identified human impact through phenomena such as:

  • Transformed patterns of sediment erosion and deposition worldwide
  • Major disturbances to the carbon cycle and global temperature
  • Wholesale changes to the worlds plants and animals
  • Ocean acidification

The scientists analysed a proposal made by Nobel Prize-winning chemist Paul Crutzen in 2002. He suggested the Earth had left the Holocene and started the Anthropocene era because of the global environmental effects of increased human population and economic development.

The researchers argue that the dominance of humans has so physically changed Earth that there is increasingly less justification for linking pre- and post-industrialized Earth within the same epoch - the Holocene.

The scientists said their findings present the scholarly groundwork for consideration by the International Commission on Stratigraphy for formal adoption of the Anthropocene as the youngest epoch of, and most recent addition to, the Earth's geological timescale.

They state: Sufficient evidence has emerged of stratigraphically significant change (both elapsed and imminent) for recognition of the Anthropocenecurrently a vivid yet informal metaphor of global environmental changeas a new geological epoch to be considered for formalization by international discussion.


'/>"/>

Contact: Jan Zalasiewicz
44-116-252-3928
University of Leicester
Source:Eurekalert

Related biology news :

1. Humans have caused profound changes in Caribbean coral reefs
2. Elevated carbon dioxide changes soil microbe mix below plants
3. UC Davis bird-flu expert calls for changes in early-warning system
4. Hearing changes how we perceive gender
5. A new explanation for evolutionary changes in genetic sex-determination systems
6. Tolerance to inhalants may be caused by changes in gene expression
7. New technique reveals subtle force-induced changes in biomolecules conformation
8. Great Plains historical stability vulnerable to future changes
9. New study shows fish respond quickly to changes in mercury deposition
10. New study shows fish respond quickly to changes in mercury deposition
11. Old developmental pathways spawn revolutionary evolutionary changes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/2/2016)... 2016 Checkpoint Inhibitors for Cancer – ... Are you interested in the future of cancer ... inhibitors. Visiongain,s report gives those predictions to 2026 ... level. Avoid falling behind in data or ... revenues those emerging cancer therapies can achieve. There ...
(Date:2/2/2016)... 2, 2016   Parabon NanoLabs (Parabon) ... Army Research Office and the Defense Forensics and ... of the company,s Snapshot Kinship Inference ... more generally, defense-related DNA forensics.  Although Snapshot is ... appearance and ancestry from DNA evidence), it also ...
(Date:2/1/2016)... 2016 Rising sales of consumer ... touchfree intuitive gesture control market size ... of consumer electronics coupled with new technological advancements to ... size through 2020   --> ... technological advancements to drive global touchfree intuitive gesture control ...
Breaking Biology News(10 mins):
(Date:2/10/2016)... 2016  Allergan plc (NYSE: AGN ) a ... Saunders , Allergan,s CEO and President, will be featured ... at the RBC Capital Markets Healthcare Conference on Tuesday, ... New York Palace Hotel in New York, ... and can be accessed on Allergan,s Investor Relations web ...
(Date:2/10/2016)... ... February 10, 2016 , ... LATHAM, NEW YORK... ... SPIE Photonics West conference in San Francisco’s Moscone Center from February 16-18, ... same venue. , These latest InGaAs PIN diode standard packages feature a TO-46 ...
(Date:2/10/2016)... ... 10, 2016 , ... Global Stem Cells Group, ... Global Stem Cells Network (GSCN) and its affiliate Global Medical Training Network ... adipose and bone marrow therapies. , Through the new collaboration, Global Stem ...
(Date:2/9/2016)... N.J. , Feb. 9, 2016  Regenicin, ... biotechnology company specializing in the development and commercialization ... of damaged tissues and organs, recently reported the ... the first quarter of 2016. Lonza ... the new 2015 fiscal year in the process ...
Breaking Biology Technology: