Featured Research

from universities, journals, and other organizations

Northeastern Researcher Finds Missing Atmospheric Carbon Dioxide

Date:
December 6, 2004
Source:
Northeastern University
Summary:
A Northeastern University researcher today announced that he has found that the soil below oak trees exposed to elevated levels of carbon dioxide had significantly higher carbon levels than those exposed to ambient carbon levels. The findings are consistent with the hypothesis that elevated carbon dioxide levels are increasing carbon storage in terrestrial ecosystems and slowing the build-up of carbon dioxide levels in the atmosphere.

Credit: Image courtesy of NOAA

BOSTON, Mass. (11-30-04) -- A Northeastern University researcher today announced that he has found that the soil below oak trees exposed to elevated levels of carbon dioxide had significantly higher carbon levels than those exposed to ambient carbon levels. The findings are consistent with the hypothesis that elevated carbon dioxide levels are increasing carbon storage in terrestrial ecosystems and slowing the build-up of carbon dioxide levels in the atmosphere. Carbon dioxide is thought to cause global warming by trapping heat radiated by the Earth.

The research, published in the latest on-line edition of the journal Earth Interactions, represents an important advance in the global warming research. The lead author on the article, “Soil C Accumulation in a White Oak CO2-Enrichment Experiment via Enhanced Root Production,” is Kevin G. Harrison from the department of earth and environmental sciences at Northeastern. Contributors also include Richard J. Norby and Wilfred M. Post from the Oak Ridge National Library in Tennessee and Emily L. Chapp form the University of Hawaii.

In the study, the researchers sought to determine if the mechanism for storing carbon in soil was CO2 fertilization, the process by which plants grow better when exposed to high CO2 levels, and to investigate the extent to which CO2 fertilization could be increasing the amount of carbon stored in soil under white oak trees. The researchers studied the soil below white oak trees in the temperate zone over four growing seasons and found that the soil below trees exposed to elevated levels of CO2 had an average of 14% more carbon.

“Researchers have long been puzzled by observations that show that carbon dioxide levels in the atmosphere are increasing more slowly than expected.,” said Harrison. “This conundrum has hindered predictions of future carbon dioxide levels and, in turn, estimates of future global warming. By being able to demonstrate a substantial average increase in the carbon below these oak trees, we have potentially found the solution to better global warming forecasting. However, further research is needed in other ecosystems to see if they show similar responses to elevated carbon dioxide levels.”

About Northeastern

Northeastern University, located in the heart of Boston, Massachusetts, is a world leader in practice-oriented education and recognized for its expert faculty and first-rate academic and research facilities. Northeastern integrates challenging liberal arts and professional studies with the nation’s largest cooperative education program. Through co-op, Northeastern undergraduates alternate semesters of full-time study with semesters of paid work in fields relevant to their professional interests and major, giving them nearly two years of professional experience upon graduation. The majority of Northeastern graduates receive a job offer from a co-op employer. Cited for excellence three years running by U.S. News & World Report, Northeastern has quickly moved up into the top tier rankings—an impressive 30 spots in three years. In addition, Northeastern was named a top college in the northeast by the Princeton Review 2003/04. For more information, please visit http://www.northeastern.edu.


Story Source:

The above story is based on materials provided by Northeastern University. Note: Materials may be edited for content and length.


Cite This Page:

Northeastern University. "Northeastern Researcher Finds Missing Atmospheric Carbon Dioxide." ScienceDaily. ScienceDaily, 6 December 2004. <www.sciencedaily.com/releases/2004/12/041203095938.htm>.
Northeastern University. (2004, December 6). Northeastern Researcher Finds Missing Atmospheric Carbon Dioxide. ScienceDaily. Retrieved October 22, 2014 from www.sciencedaily.com/releases/2004/12/041203095938.htm
Northeastern University. "Northeastern Researcher Finds Missing Atmospheric Carbon Dioxide." ScienceDaily. www.sciencedaily.com/releases/2004/12/041203095938.htm (accessed October 22, 2014).

Share This



More Earth & Climate News

Wednesday, October 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

Reuters - Light News Video Online (Oct. 22, 2014) — The pair of rare white northern rhinos bring hope for their species as only six remain in the world. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
Trick-or-Treating Banned Because of Polar Bears

Trick-or-Treating Banned Because of Polar Bears

Buzz60 (Oct. 21, 2014) — Mother Nature is pulling a trick on the kids of Arviat, Canada. As Mara Montalbano (@maramontalbano) tells us, the effects of global warming caused the town to ban trick-or-treating this Halloween. Video provided by Buzz60
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) — He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
How Detroit's Money Woes Led To U.N.-Condemned Water Cutoffs

How Detroit's Money Woes Led To U.N.-Condemned Water Cutoffs

Newsy (Oct. 20, 2014) — The United Nations says water is a human right, but should it be free? Detroit has cut off water to residents who can't pay, and the U.N. isn't happy. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins