Navigation Links
CO2 effects on plants increases global warming
Date:5/3/2010

Palo Alto, CA Trees and other plants help keep the planet cool, but rising levels of carbon dioxide in the atmosphere are turning down this global air conditioner. According to a new study by researchers at the Carnegie Institution for Science, in some regions more than a quarter of the warming from increased carbon dioxide is due to its direct impact on vegetation. This warming is in addition to carbon dioxide's better-known effect as a heat-trapping greenhouse gas. For scientists trying to predict global climate change in the coming century, the study underscores the importance of including plants in their climate models.

"Plants have a very complex and diverse influence on the climate system," says study co-author Ken Caldeira of Carnegie's Department of Global Ecology. "Plants take carbon dioxide out of the atmosphere, but they also have other effects, such as changing the amount of evaporation from the land surface. It's impossible to make good climate predictions without taking all of these factors into account."

Plants give off water through tiny pores in their leaves, a process called evapotranspiration that cools the plant, just as perspiration cools our bodies. On a hot day, a tree can release tens of gallons of water into the air, acting as a natural air conditioner for its surroundings. The plants absorb carbon dioxide for photosynthesis through the same pores (called stomata). But when carbon dioxide levels are high, the leaf pores shrink. This causes less water to be released, diminishing the tree's cooling power.

The warming effects of carbon dioxide as a greenhouse gas have been known for a long time, says Caldeira. But he and fellow Carnegie scientist Long Cao were concerned that it is not as widely recognized that carbon dioxide also warms our planet by its direct effects on plants. Previous work by Carnegie's Chris Field and Joe Berry had indicated that the effects were important. "There is no longer any doubt tha
'/>"/>

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

Page: 1 2 3

Related biology news :

1. ARS scientists study effects of grazing on grouse habitat
2. Genes may exert opposite effects in diabetes and inflammatory bowel disease
3. Vitamin D levels have different effects on atherosclerosis in blacks and whites
4. Exercise counters negative effects of weight regain, researchers find
5. Study: Gene therapy reverses effects of lethal childhood muscle disorder in mice
6. Effects of forest fire on carbon emissions, climate impacts often overestimated
7. Researchers trace effects of genetic defect in myotonic muscular dystrophy
8. Disproportionate effects of global warming and pollution on disadvantaged communities
9. UA-led study grapples with health effects of low-intensity warfare
10. Study finds logging effects vary based on a forests history, climate
11. Study points to new uses, unexpected side effects of already existing drugs
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
CO2 effects on plants increases global warming
(Date:11/21/2014)... Strict laws against distracted driving and the ... American and European automotive sector towards gesture recognition technologies. ... that are intuitive and able to retrieve information with ... New analysis from Frost & Sullivan,s Strategic ... Europe and North America ...
(Date:11/18/2014)... , Nov. 18, 2014  The Secure Identity ... Association today jointly announce the formation of The ... of its Identity and Biometric Entry and ... Framework received official support from BORDERPOL, the international ... improve and provide expertise regarding border security, traveler ...
(Date:11/18/2014)... , Nov. 18, 2014   EyeLock Inc. ... solutions, and MorphoTrust USA (Safran), a ... today announced a strategic partnership to offer comprehensive ... vehicle administration (MVA), airport screening and financial services ... solutions, MorphoTrust serves consumers through a nationwide network ...
Breaking Biology News(10 mins):Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 2Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 3Gesture Recognition Intensifies with the Rise of In-car Smartphone Integration, Says Frost & Sullivan 4Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 2Identity Management, Document Authentication and Biometric Companies Form "The Airport Entry and Exit Working Group", Releasing the Framework to Help Guide the Department of Homeland Security and Congress Towards Solutions 3EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3
... SALT LAKE CITY , July 26 Wall Street ... a world leader in content identification solutions, to provide public relations ... in broadcast, government, and professional video trade press worldwide. , ... iPharro Media, based ...
... atmospheric composition, and hence climate. Projections of future climate ... more CO 2 is released from soils in ... due to photosynthesis. Climate changes will also lead to ... methane from wetlands, nitrous oxides from soils, volatile organic ...
... COLUMBUS, Ohio -- Researchers have long known that humans lack ... animal kingdom and even plants -- that reverses severe sun ... this enzyme works at the atomic level to repair sun-damaged ... and skin cancer prevention. In the early online edition ...
Cached Biology News:Wall Street Communications Retained by iPharro Media 2Unaccounted feedbacks from climate-induced ecosystem changes may increase future climate warming 2Researchers discover how key enzyme repairs sun-damaged DNA 2
(Date:12/17/2014)...  Vermillion, Inc. (NASDAQ: VRML ), a ... the next step in its expanded strategy to rebuild ... the naming of current Chief Operating Officer, Valerie ... current Chairman of the Board and CEO James ... changes are effective January 1, 2015. "Jim ...
(Date:12/15/2014)... 2014 METTLER TOLEDO is pleased ... ParticleView V19 with PVM technology , is ... vision and measurement tool continuously captures high-resolution images ... V19 then automatically prepares a report pairing the ... and concentration changes. This compelling blend of high ...
(Date:12/15/2014)... COPENHAGEN, Denmark , Dec. 15, 2014 /PRNewswire/ ... its innovative TransCon technology to address significant unmet ... from its ongoing Phase 2 pediatric study to ... growth hormone deficiency, or GHD.  This interim analysis ... the anticipated total enrollment in the study, completing ...
(Date:12/13/2014)... December 12, 2014 Trend lines for ... overall global economic growth, Eugene Arthurs, CEO of ... said in a featured talk at OPTIC (Optics and ... the National Chung Hsing University in Taichung. , As ... into future energy supplies and soon to hit US$50 ...
Breaking Biology Technology:Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 2Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 3Vermillion Names Valerie Palmieri CEO; James LaFrance to continue as Chairman of Board 4New Real-Time In Situ Probe-Based Video Microscope from METTLER TOLEDO 2Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 2Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 3Ascendis Pharma A/S Announces Positive Six-Month Interim Results from a Phase 2 Pediatric Study of Once-Weekly TransCon Growth Hormone for the Treatment of Growth Hormone Deficiency 4Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 2Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 3Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 4Photonics Continues Upward Trends Despite Challenges in the Global Economy, Notes SPIE CEO 5
... RedPrairie Corporation has completed its previously announced acquisition of ... expects to grow to 738 employees at 21 sites ... employees are from MARC. , ,Former MARC CEO Oliver ... organization, under RedPrairie company leader John Jazwiec. , ,"The ...
... an Oracle-based e-mail installation and trying to recover $2.1 ... pilot program that lasted for at least six months ... difficulties cropped up. , ,State CIO Matt Miszewski and ... letter to state agency heads on Friday that the ...
... Amazon.com said on Monday it is acquiring Shopbop, a Madison-based ... up in 1999 as a store on Gorham street called ... as a standalone operation after the acquisition, but Amazon.com will ... not disclosed. With the acquisition, Amazon boosts its selection of ...
Cached Biology Technology:Oracle out, Microsoft in for state e-mail project 2