Navigation Links
Forest emissions, wildfires explain why ancient Earth was so hot
Date:2/5/2014

The release of volatile organic compounds from Earth's forests and smoke from wildfires 3 million years ago had a far greater impact on global warming than ancient atmospheric levels of carbon dioxide, a new Yale study finds.

The research provides evidence that dynamic atmospheric chemistry played an important role in past warm climates, underscoring the complexity of climate change and the relevance of natural components, according to the authors. They do not address or dispute the significant role in climate change of human-generated CO2 emissions.

Using sophisticated Earth system modeling, a team led by Nadine Unger of the Yale School of Forestry & Environmental Studies (F&ES) calculated that concentrations of tropospheric ozone, aerosol particles, and methane during the mid-Pliocene epoch were twice the levels observed in the pre-industrial era largely because so much more of the planet was covered in forest.

Those reactive compounds altered Earth's radiation balance, contributing a net global warming as much as two to three times greater than the effect of carbon dioxide, according to the study, published in the journal Geophysical Research Letters.

These findings help explain why the Pliocene was two to three degrees C warmer than the pre-industrial era despite atmospheric levels of carbon dioxide that were approximately the same as today, Unger said.

"The discovery is important for better understanding climate change throughout Earth's history, and has enormous implications for the impacts of deforestation and the role of forests in climate protection strategies," said Unger, an assistant professor of atmospheric chemistry at F&ES.

"The traditional view," she said, "is that forests affect climate through carbon storage and by altering the color of the planet's surface, thus influencing the albedo effect. But as we are learning, there are other ways that forest ecosystems can impact the c
'/>"/>

Contact: Kevin Dennehy
kevin.dennehy@yale.edu
203-436-4842
Yale School of Forestry & Environmental Studies
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. NYBG launches Amazon Forest Program to help conserve Earths largest intact forest
2. Forests in Central America paying the price of drug trafficking shift
3. Forests as Capital: International Society of Tropical Foresters Annual Conference in New Haven
4. Effective control of invasive weeds can help attempts at reforestation in Panama
5. Rainforests in Far East shaped by humans for the last 11,000 years
6. Increase in hemlock forest offsetting effect of invasive hemlock woolly adelgid for now
7. Salamanders help predict health of forest ecosystems and inform forest management
8. World Congress on Agroforestry 2014
9. MU researchers study of African forest elephants helps guide research efforts in the US
10. 79 years of monitoring demonstrates dramatic forest change
11. Telecoupling science shows Chinas forest sustainability packs global impact
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Forest emissions, wildfires explain why ancient Earth was so hot
(Date:10/14/2014)... in Cancer Research shows SIRT6—a protein known ... promote the development of skin cancers by turning on ... sun-damaged skin cells. , Previously considered protective, SIRT6 is ... that help regulate genomic stability and prevent some of ... DNA damage, which can lead to cancer. This study, ...
(Date:10/14/2014)... N.Y. – Scientists have sequenced the house fly genome ... one might expect from an insect that thrives in ... published Oct. 14 in the journal Genome Biology ... biology and of how flies quickly adapt to resist ... Adult house flies (Musca domestica) carry and transmit more ...
(Date:10/14/2014)... new kind of stem cell that can become either a ... according to a study published today in the journal ... type contradicts current theory on how organs arise from cell ... of, and future treatment for, liver cancer., Thanks to stem ... being made up of more than 200 cell types. The ...
Breaking Biology News(10 mins):Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2House fly genome reveals expanded immune system 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 2Stem cell discovery challenges dogma on how fetus develops; holds insights for liver cancer and reg 3
... provide a look at the ash and gas clouds being ... NOAA,s GOES-13 satellite to provide a week long look at ... westerly winds carry the debris (ash and smoke) far to ... down the ash before it can go far in the ...
... 2012 Scientists at The Scripps Research Institute have ... the market to treat neuropathic pain and epilepsy, helps ... treatments, gabapentin targets stress systems in the brain that ... 12-week trial of 50 treatment-seeking cannabis users, those who ...
... /PRNewswire-iReach/  -- Global Information Inc. is announces limited time ... important Boston healthcare conferences: Next-Gen Kinase ... rapidly maturing kinase inhibitors field will gather to explore ... Next-Gen Kinase Inhibitors Conference in Cambridge, MA. ...
Cached Biology News:NASA's new satellite movie of 1 week's ash activity from Mexico's Popocatepetl Volcano 2Scripps research scientists find anticonvulsant drug helps marijuana smokers kick the habit 2Scripps research scientists find anticonvulsant drug helps marijuana smokers kick the habit 3Attendees Save Up To $800 on Boston-area Pharmaceutical and Healthcare Conferences, Early Bird Discounts Expiring April 27 2Attendees Save Up To $800 on Boston-area Pharmaceutical and Healthcare Conferences, Early Bird Discounts Expiring April 27 3
(Date:10/25/2014)... NEW YORK , Oct. 24, ... formerly Access Pharmaceuticals, Inc. (ACCP), a biopharmaceutical company ... has implemented a 1-for-50 reverse split of its ... on Friday, October 24, 2014. PlasmaTech,s common stock ... CUSIP number 72754H109 and temporary ticker symbol "ACCPD". ...
(Date:10/22/2014)... , Oct. 22, 2014 New test innovations ... in vitro diagnostic (IVD) test industry, especially as companies ... market researcher listed more than 25 testing innovations in ... the future of IVD products. Kalorama details the new approaches ... Worldwide Market for In Vitro Diagnostic Tests , ...
(Date:10/22/2014)... Md. (PRWEB) October 21, 2014 Shimadzu ... an LC/MS/MS data tool for the pain management and ... of data processing and review by allowing users to ... to clinicians. , QuantAnalytics allows analysts to filter ... This expedites data processing by eliminating the need to ...
(Date:10/22/2014)... Rock Hill, SC (PRWEB) October 22, 2014 ... the expansion of its cardiovascular pharmacogenetics menu, which ... improved patient outcomes. With PCLS’s evidence-based results, ... individual needs and optimize their therapy, while minimizing ... , In the U.S., according to the FDA ...
Breaking Biology Technology:PlasmaTech Biopharmaceuticals, Inc. Announces Reverse Stock Split, Ticker Change and Launches New Corporate Website 2Report: Radical New IVD Test Approaches Key To Growth 2Report: Radical New IVD Test Approaches Key To Growth 3Shimadzu Releases QuantAnalytics Open Access LCMS Software Package for Clinical Applications 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 2PCLS Announces Expansion of Cardiovascular Pharmacogenetic Testing Menu 3
... Cause of ... Death, Yearly, Liver Cancer Alone ... Growing; Viral Hepatitis Declines, MILAN, April 23 More than 6,000 physicians ... the opening sessions of the 43rd Annual Meeting of the,European Association for the ...
... image are better than one for analyzing tumors , ... determine the amount of oxygen in a tumor very useful, because ... a poor outcome. A new method to do this and to ... been developed and used to image tumors in mice by Murali ...
... Some of the biggest-selling,biologics developed during the boom years ... and insulin, have lost patent,protection in the U.S. in ... $40 billion. This opens up a huge potential market ... a new report by Kalorama,Information, Biogenerics: the World Market ...
Cached Biology Technology:Liver Diseases: A Huge European Health Burden, But Some Trends are Positive 2Liver Diseases: A Huge European Health Burden, But Some Trends are Positive 3JCI table of contents: April 22, 2008 2JCI table of contents: April 22, 2008 3JCI table of contents: April 22, 2008 4JCI table of contents: April 22, 2008 5JCI table of contents: April 22, 2008 6JCI table of contents: April 22, 2008 7JCI table of contents: April 22, 2008 8JCI table of contents: April 22, 2008 9JCI table of contents: April 22, 2008 10JCI table of contents: April 22, 2008 11JCI table of contents: April 22, 2008 12Huge Potential in Biosimilars if Generic Providers Overcome Regulatory Hurdles 2
Economical and manually filled LN2 vacuum insulated storage container offers high capacity and low nitrogen consumption while offering convenient storage of samples....
... DNase I Amplification Grade ... DNA to oligodeoxyribonucleotides. The ... units/mg. DNAse I Amplification ... and tested for absence ...
... of Cell Cultures (ECACC) in conjunction with ... West of England, Bristol, UK, have produced ... of HER2, oestrogen and progresterone receptor assays. ... of formalin fixed, breast cancer cell lines; ...
... 3C protease from human rhinovirus (HRV 3C) ... brand line of restriction grade proteases. The ... 6XHis-fusion protein, which recognizes the same cleavage ... small, 22 KDa size of the protease, ...
Biology Products: