HOME >> BIOLOGY >> NEWS
Study predicts Amazon deforestation could affect climate in US

DURHAM, N.C. -- New mathematical simulations of climate behavior by Duke University researchers indicate that deforestation in the Amazon can cause a reduction of rainfall in the Midwestern United States and the Dakotas in the summer, when precipitation is most needed for agriculture.

"What this suggests is that if you mess up the planet at one point, the impact could have far-reaching effects," said Roni Avissar, chairman of the Department of Civil and Environmental Engineering at Duke's Pratt School of Engineering. "You have to be careful not to look at only one area."

Avissar and research associate David Werth report their findings in the Oct. 27 issue of the "Journal of Geophysical Research-Atmospheres." The study was supported by grants from the National Aeronautics and Space Administration.

They conducted their research by using as a climate simulator a set of mathematical equations that describe the behavior of Earth's atmosphere. Each simulation uses a variety of data such as heat release, humidity, evaporation, precipitation, sea surface temperatures, soil moisture transfer and the like that would exist under different scenarios ranging from current conditions to a completely deforested Amazon basin.

It has been estimated that 15 percent of the Amazon rain forest already has been cut and turned into pasture, but the researchers looked at what might happen if the entire Amazon were converted to pasture land.

"Basically, what we see is a reduction of rainfall over the Amazon," Avissar said in an interview. "This reduction of precipitation occurs most of the year but is most significant -- on the order of 15 percent to 20 percent -- during the summer, from February to March. Of particular interest is that we see a correlation with climate changes, primarily reduced precipitation, in other parts of the world."

Avissar said the simulation showed a noticeable reduction of precipitation -- 10 percent to 15 percent -- during the
'"/>

Contact: Al Rossiter Jr.
al.rossiter@duke.edu
252-946-8831
Duke University
24-Oct-2002


Page: 1 2

Related biology news :

1. Study: Emission of smog ingredients from trees is increasing rapidly
2. Study explores gene transfer to modify underlying course of Alzheimers disease
3. Study reveals why eyes in some paintings seem to follow viewers
4. Study by Israeli scientists provides insight on DNA code
5. Study reveals first genetic step necessary for prostate cancer growth
6. Study of flu patients reveals virus outsmarting key drug
7. Study in Science reveals recreational fishing takes big bite of ocean catch
8. Study suggests cell-cycle triggers might be cancer drug targets
9. Study narrows search for genes placing men at increased risk for prostate cancer
10. Study links high carbohydrate diet to increased breast cancer risk
11. Study explains spatial orientation differences between sexes

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/16/2018)... POWAY, Calif. (PRWEB) , ... October 16, 2018 , ... ... taken to look for a possible tumor and instead, Sam’s veterinarian found that he ... not experiencing any obvious discomfort, so his owner placed him on supplements for the ...
(Date:10/16/2018)... ... October 15, 2018 , ... Modality Solutions, ... regulated industries, is a silver sponsor and exhibitor at the Executive Platforms’ Biomanufacturing ... The Biomanufacturing World Summit brings together the “who’s who” of pharmaceutical executives, cutting-edge ...
(Date:10/16/2018)... Utah and BOSTON (PRWEB) , ... ... ... CallTower , a global leader in delivering cloud-based enterprise-class unified communications and ... Boost delivers enhanced network stability by directly connecting CallTower data centers to ...
Breaking Biology News(10 mins):
(Date:10/3/2018)... (PRWEB) , ... October 03, 2018 , ... Milwaukee Area ... open house Wednesday, Oct. 17, from 3-7 p.m. in Room T129 in the T ... to its new CNC Swiss Lab. A ribbon cutting and formal program will be ...
(Date:10/2/2018)... ... 2018 , ... The Alliance for Clinical Research Excellence and ... standards and testing of procedures for voluntary accreditation of clinical research sites. The ... Quality Management Systems and Chief Quality Officer, is underway in association with ...
(Date:9/27/2018)... ... September 26, 2018 , ... ... Melina Cimler, a senior quality, regulatory, and in vitro diagnostic device expert with ... diagnostic industry has joined the firm as an Expert Consultant. Her experience includes ...
(Date:9/27/2018)... ... September 27, 2018 , ... ... Everwell Health Solutions and SureAdhere Mobile Technology, Inc. announced they will formally merge ... in the battle against tuberculosis (TB) and other diseases. These two social enterprise ...
Breaking Biology Technology:
Cached News: