Navigation Links
Study: Did early climate impact divert a new glacial age?
Date:12/17/2008

SAN FRANCISCO The common wisdom is that the invention of the steam engine and the advent of the coal-fueled industrial age marked the beginning of human influence on global climate.

But gathering physical evidence, backed by powerful simulations on the world's most advanced computer climate models, is reshaping that view and lending strong support to the radical idea that human-induced climate change began not 200 years ago, but thousands of years ago with the onset of large-scale agriculture in Asia and extensive deforestation in Europe.

What's more, according to the same computer simulations, the cumulative effect of thousands of years of human influence on climate is preventing the world from entering a new glacial age, altering a clockwork rhythm of periodic cooling of the planet that extends back more than a million years.

"This challenges the paradigm that things began changing with the Industrial Revolution," says Stephen Vavrus, a climatologist at the University of Wisconsin-Madison's Center for Climatic Research and the Nelson Institute for Environmental Studies. "If you think about even a small rate of increase over a long period of time, it becomes important."

Addressing scientists here today (Dec. 17) at a meeting of the American Geophysical Union, Vavrus and colleagues John Kutzbach and Gwenalle Philippon provided detailed evidence in support of a controversial idea first put forward by climatologist William F. Ruddiman of the University of Virginia. That idea, debated for the past several years by climate scientists, holds that the introduction of large-scale rice agriculture in Asia, coupled with extensive deforestation in Europe began to alter world climate by pumping significant amounts of greenhouse gases methane from terraced rice paddies and carbon dioxide from burning forests into the atmosphere. In turn, a warmer atmosphere heated the oceans making them much less efficient storehouses of carbon dioxid
'/>"/>

Contact: Steve Vavrus
sjvavrus@wisc.edu
608-265-5279
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. UNC study: Text messaging may help children fight off obesity
2. Study: Elderly Women can increase strength but still risk falls
3. Study: Wildlife need more complex travel plans
4. Study: Tropical wetlands hold more carbon than temperate marshes
5. Study: Bird diversity lessens human exposure to West Nile Virus
6. Study: urban black bears live fast, die young
7. Study: Typhoons bury tons of carbon in the oceans
8. Study: Migrant laborers valuable to horticulture industry
9. Study: Future snowmelt in West twice as early as expected; threatens ecosystems and water reserves
10. U-M study: Herceptin targets breast cancer stem cells
11. Stanford study: Bioenergy potential of reviving abandoned agricultural land
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 2014  Automation is fundamentally transforming the travel ... at international borders. Over the past decade, ePassports, ... veteran travelers to self process through border control ... at an increasing number of airports, seaports, and ... According to Maxine Most , Principal at ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has ... in India 2015-2019" report to their offering. ... this market is the adoption of multimodal biometric ... characteristic of an individual for verification and identification ...
(Date:12/10/2014)... You,ve been here before: you desperately need to sign into ... key or the answer to your secret question. What,s your ... Today, Hoyos Labs , a digital infrastructure security ... an end to the frustration that comes with usernames, passwords ... a user,s smartphone to acquire his or her biometrics to ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... 2012 Researchers at the Translational Genomics Research Institute (TGen) ... to a less costly, less invasive and more accurate way ... a major complication of diabetes, high blood pressure and a ... by a progressive deterioration of the kidney,s ability to filter ...
... Biological Chemistry "Paper of the Week" by Wai Mun ... Center and the University of Minnesota reveals new insights into ... tumefaciens , the pathogen responsible for crown gall disease, a ... beets. The bacterium is parasitic: It infects ...
... you,re a male born to a father who,s a strong and enduring ... become a leader yourself, due to the wide range of social advantages ... old man isn,t a leader, other men in your community are more ... on you and showing you the ropes. Sound like ...
Cached Biology News:TGen method isolates biospecimens for treatment of kidney disease 2The old primates' club: Even male monkeys ride their fathers' coattails to success 2The old primates' club: Even male monkeys ride their fathers' coattails to success 3The old primates' club: Even male monkeys ride their fathers' coattails to success 4The old primates' club: Even male monkeys ride their fathers' coattails to success 5
(Date:12/24/2014)... Louis, Missouri (PRWEB) December 23, 2014 ... targeting Swiss biotechnology company, Syngenta, are in the process ... pretrial proceedings. The consolidated case is In Re: Syngenta ... the U.S. District Court for the District of Kansas. ... (MDL) has been handed over to U.S. District Judge ...
(Date:12/24/2014)... December 23, 2014 ... is designed to introduce cutting edge communication ... and partners of platform upgrades. This webinar ... empowering users in their quest to leverage ... , According to SoundConnect’s Marketing Manager, Seanna ...
(Date:12/24/2014)... New York (PRWEB) December 23, 2014 According ... the Long Island Affiliate of ITRA Global, the national office ... but steady recovery. This is evidenced by the third ... strong stock market. Low energy costs have held inflation ... The only negative is the housing market remaining soft. , ...
(Date:12/24/2014)... 2014 Nashville Fertility Center announced that ... for the American Society for Reproductive Medicine (ASRM), a ... in reproductive medicine. In his new role as ... executive board and will have a voice in furthering ... actively supported ASRM since 1984 when he joined while ...
Breaking Biology Technology:Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2SoundConnect Launches Leading Edge Business Communications Webinar Series 2SoundConnect Launches Leading Edge Business Communications Webinar Series 3ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 2Nashville Fertility Center Announces Dr. George A. Hill Selected to Serve as ASRM Treasurer for 2014-15 3
... CA, January 29, 2009 Senomyx, Inc. (Nasdaq: ... quarter and fiscal year ending December 31, 2008 on Thursday, ... markets. The Company will also host a conference call ... a.m. Pacific Time) that same day. During the call, ...
... ST. LOUIS, Jan. 29 Sigma-Aldrich (Nasdaq: ... has signed a distribution agreement with CPC,Scientific, ... peptide synthesis, GMP,peptides and peptide APIs for ... of the agreement, CPC Scientific will offer ...
... Amicus Therapeutics (Nasdaq: FOLD ) will announce ... the regular close of markets on Thursday, February 5, ... live conference call and webcast that afternoon at 5 ... conference call at 5 p.m. EST by dialing 877-675-4756 ...
Cached Biology Technology:SENOMYX, INC. fourth quarter AND FISCAL YEAR-END 2008 Earnings conference call scheduled for February 12, 2009 2Sigma-Aldrich Signs Agreement With CPC Scientific for the Distribution of PEPscreen(R) Custom Peptide Libraries 2Sigma-Aldrich Signs Agreement With CPC Scientific for the Distribution of PEPscreen(R) Custom Peptide Libraries 3Amicus Therapeutics Announces Fourth Quarter and Year End 2008 Financial Results Release Date 2
...
Full-length cDNA clone CS0DJ013YG01 of T cells (Jurkat cell line) of Homo sapiens (human). [Source:Uniprot/SPTREMBL;Acc:Q86SZ3] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
...
All-in-one mix, removes primers and dNTPs from PCR product for following direct sequencing...
Biology Products: