Navigation Links
Water evaporated from trees cools global climate
Date:9/14/2011

Washington, DC. Scientists have long debated about the impact on global climate of water evaporated from vegetation. New research from Carnegie's Global Ecology department concludes that evaporated water helps cool the earth as a whole, not just the local area of evaporation, demonstrating that evaporation of water from trees and lakes could have a cooling effect on the entire atmosphere. These findings, published September 14 in Environmental Research Letters, have major implications for land-use decision making.

Evaporative cooling is the process by which a local area is cooled by the energy used in the evaporation process, energy that would have otherwise heated the area's surface. It is well known that the paving over of urban areas and the clearing of forests can contribute to local warming by decreasing local evaporative cooling, but it was not understood whether this decreased evaporation would also contribute to global warming

The Earth has been getting warmer over at least the past several decades, primarily as a result of the emissions of carbon dioxide from the burning of coal, oil, and gas, as well as the clearing of forests. But because water vapor plays so many roles in the climate system, the global climate effects of changes in evaporation were not well understood.

The researchers even thought it was possible that evaporation could have a warming effect on global climate, because water vapor acts as a greenhouse gas in the atmosphere. Also, the energy taken up in evaporating water is released back into the environment when the water vapor condenses and returns to earth, mostly as rain. Globally, this cycle of evaporation and condensation moves energy around, but cannot create or destroy energy. So, evaporation cannot directly affect the global balance of energy on our planet.

The team led by George Ban-Weiss, formerly of Carnegie and currently at Lawrence Berkeley National Laboratory, included Carne
'/>"/>

Contact: Ken Caldeira
kcaldeira@carnegie.stanford.edu
650-704-7212
Carnegie Institution
Source:Eurekalert

Page: 1 2

Related biology news :

1. Experts to discuss global water crisis
2. Commercial aquatic plants offer cost-effective method for treating wastewater
3. UNC study on properties of carbon nanotubes, water could have wide-ranging implications
4. Waterborne disease risk upped in Great Lakes
5. Turning freshwater farm ponds into crab farms
6. Ripple effect: Water snails offer new propulsion possibilities
7. NJIT professors research suggests changes in underwater data communications
8. Providing toilets, safe water is top route to reducing world poverty: UN University
9. Cold water corals conference to be held in Woods Hole
10. Scientists achieve first tracking of salmon from headwaters in Rockies through Pacific to Alaska
11. Scripps Florida scientists awarded $1.5M to fight major water and food parasites
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/26/2014)... the University of Liverpool has recommended investing in dog owner ... and problems such as obesity in both people and their ... 1990, the researchers found that access to dog-friendly walking environments ... people to get out and take more exercise with their ... don,t take their dogs for a walk. In the UK, ...
(Date:8/25/2014)... old saying in the biofuels industry: "You can ... a new study may pave the way to ... Department,s National Renewable Energy Laboratory (NREL) demonstrates a ... of lignin into a variety of renewable fuels, ... , " Lignin Valorization Through Integrated Biological Funneling ...
(Date:8/25/2014)... of proteins that promotes virus entry into cells also ... and other viruses, University of Missouri researchers have found. ... insights into our understanding of not only HIV infection, ... Shan-Lu Liu, M.D., Ph.D., associate professor in the MU ... , The study was recently published in the ...
Breaking Biology News(10 mins):Education and dog-friendly neighbourhoods could tackle obesity 2New process helps overcome obstacles to produce renewable fuels and chemicals 2MU researchers discover protein's ability to inhibit HIV release 2MU researchers discover protein's ability to inhibit HIV release 3
... Saskatchewan's Vaccine and Infectious Disease Organization (VIDO) have developed a ... fight against a disease for which no vaccines are yet ... that this vaccination technique may be effective against HCV. The ... , The team, funded by the Canadian Institutes of ...
... and the Department of Horticulture in the College ... have developed a new procedure for the efficient ... of strawberry. The scientists have used Agrobacterium tumefaciens, ... woodland or alpine strawberry Fragaria vesca. , ...
... of molecule which they believe could ultimately lead to ... modified tobacco. Writing in Plant Biotechnology Journal, Dr Patricia ... along with researchers at the University of Warwick say ... far frustrated attempts to turn plants into economically viable ...
Cached Biology News:U of S researchers develop new vaccine candidate against hepatitis C 2Strawberries by design 2Do plants have the potential to vaccinate against HIV? 2
(Date:8/27/2014)... College, PA (PRWEB) August 27, 2014 ... Simulation Software with new features for the biomedical ... is an enhanced Biological Thermal Sensor, exclusive to the ... a specialty version of XFdtd, developed to calculate the ... export functionality has been added to all versions to ...
(Date:8/26/2014)... Scientists have developed what they believe is the ... made in sheets only three atoms thick. , ... two of these single-layer semiconductor materials can be ... a heterojunction. This result could be the basis ... diodes, or LEDs, and solar technologies. , "Heterojunctions ...
(Date:8/26/2014)... LONDON , Aug. 26, 2014 An ... gene structures of all Mers CoV virus ... Replikin structures back to 2012.  This conservation and sharing ... of a Synthetic Mers CoV Blocker-Vaccine™ candidate, as it did ... Shrimp vaccine, both of which have been found to ...
(Date:8/26/2014)... argument has just been added to the growing ... as the next big thing in the high-tech ... materials. An international collaboration of researchers led by ... (DOE),s Lawrence Berkeley National Laboratory (Berkeley Lab) has ... transfer in photo-excited MX2 materials. The recorded charge ...
Breaking Biology Technology:Remcom Announces Enhanced Biological Thermal Sensor and Other Biomedical Features in XFdtd EM Simulation Software Update 2Remcom Announces Enhanced Biological Thermal Sensor and Other Biomedical Features in XFdtd EM Simulation Software Update 3Scientists craft atomically seamless, thinnest-possible semiconductor junctions 2Competition for graphene 2
... OmniSonics Medical,Technologies, Inc., a developer of advanced ... disease, announced today that it has enrolled its,first ... I is a prospective,multi-centered U.S. registry study of ... percutaneous mechanical,thrombectomy of acute deep vein thrombosis (DVT). ...
... Signalife, Inc. (Amex:,SGN - News) announced earlier ... financial commitments with respect to acquisitions of the,Company,s ... internationally, including in Japan, other parts of Asia ... the Company,s President and CEO, stated: "I anticipate,closing ...
... ... Surveillance System, EL SEGUNDO, Calif., March 17 ... has been awarded a,task order from the Centers for Disease Control ... System (NEDSS) Base System (NBS). The system helps the CDC,manage and ...
Cached Biology Technology:First Patient Enrolled in SONIC I Registry of OmniSonics Medical Technologies' OmniWave(TM) Endovascular System 2Signalife Sees Accretive Purchase and Financial Commitments 2CSC Continues Support of Centers for Disease Control and Prevention Through New Task Order 2
... Sheep polyclonal to Decorin ( ... Antigen: Synthetic ... to amino acids 6-19 of Human ... molecule bone proteoglycan II). ...
... VSOS-4P, all Programmable and Digital Orbital Shaker. Our ... redesigned to make every day use even easier. ... for up to 4 different programs. Its easy ... program. Furthermore, the VSOS-4P has a pulse operation ...
... enables early selection of the best ... quantitative data for sensitivity, dynamic range, ... Furthermore quantitative antibody fingerprints can be ... your antibodies., The full-service package includes ...
... is a new generation of microarrays to ... enables you to rapidly elucidate alternatively spliced ... relevant for drug discovery. The service combines ... design and customized analysis with Agilents robust ...
Biology Products: